> For the complete documentation index, see [llms.txt](https://docs.m-xr.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.m-xr.com/marso-studio-api/api/collections.md).

# Collections

Manage groups of logical Library Assets and their images.

## List collections

> Returns your collections after name, tag, and date filters. Equal creation dates use the collection ID as a stable tie-break.

```json
{"openapi":"3.1.0","info":{"title":"Marso Studio API","version":"0.0.1"},"tags":[{"name":"collections","description":"Manage groups of logical Library Assets and their images."}],"servers":[{"url":"https://api.marso.app/api/public/v1/","description":"Production server."}],"security":[{"apiKey":[]}],"components":{"securitySchemes":{"apiKey":{"type":"http","scheme":"bearer","description":"API key created in the Marso Studio dashboard. The value has the form\n`mxr_live_<entropy>` and is sent as a Bearer token in the `Authorization`\nheader.\n"}},"schemas":{"CollectionList":{"type":"object","description":"A filtered page of collections.","properties":{"data":{"type":"array","description":"The collections in creation-time order.","items":{"$ref":"#/components/schemas/Collection"}},"pagination":{"$ref":"#/components/schemas/PublicPagination"}},"required":["data","pagination"]},"Collection":{"type":"object","description":"A named group of logical Library Assets.","properties":{"marketplace":{"$ref":"#/components/schemas/MarketplaceCollectionInfo","description":"The source version. Absent for a studio Collection."},"collection_id":{"type":"string","description":"The collection ID.","format":"uuid"},"name":{"type":"string","description":"The collection name, from 1 to 100 Unicode characters.","minLength":1,"maxLength":100},"tags":{"type":"array","description":"The display tags. Each tag has 1 to 32 Unicode characters after trim. Case-insensitive duplicates return 400.","items":{"type":"string","description":"The tag text.","minLength":1,"maxLength":32},"maxItems":20},"creator":{"$ref":"#/components/schemas/CollectionCreator"},"asset_count":{"type":"integer","description":"The number of stored member references, including unavailable members.","minimum":0},"thumbnail_url":{"type":"string","description":"The preview URL. It travels with thumbnail_url_expires_at."},"thumbnail_url_expires_at":{"$ref":"#/components/schemas/EpochMillis"},"created_at":{"$ref":"#/components/schemas/EpochMillis"},"updated_at":{"$ref":"#/components/schemas/EpochMillis"}},"required":["collection_id","name","tags","creator","asset_count","created_at","updated_at"]},"MarketplaceCollectionInfo":{"type":"object","description":"The immutable marketplace version that created this personal Collection.","properties":{"listing_id":{"type":"string","format":"uuid","description":"The canonical marketplace listing ID."},"revision":{"type":"integer","minimum":1,"maximum":9007199254740991,"description":"The exact immutable revision, from 1 to 9007199254740991."},"source_type":{"type":"string","enum":["curated"],"description":"Possible enum values: `curated`: content from the curated marketplace."}},"required":["listing_id","revision","source_type"]},"CollectionCreator":{"type":"object","description":"The User who created the collection.","properties":{"user_id":{"type":"string","description":"The creator User ID."},"name":{"type":"string","description":"The current profile name. Absent if unavailable."}},"required":["user_id"]},"EpochMillis":{"type":"integer","format":"int64","description":"Time represented as milliseconds since the Unix epoch.\n"},"PublicPagination":{"type":"object","required":["has_more"],"description":"Cursor pagination envelope.\n","properties":{"next_cursor":{"type":"string","description":"Opaque cursor for the next page. Absent when the result set is\nexhausted. Echo it back verbatim as `cursor`.\n"},"has_more":{"type":"boolean","description":"Whether another page follows. Always agrees with the presence of\n`next_cursor`.\n"}}},"Error":{"type":"object","required":["error"],"description":"Canonical error envelope. The error payload is nested under the `error`\nkey.\n","properties":{"error":{"$ref":"#/components/schemas/ErrorBody"}}},"ErrorBody":{"type":"object","description":"The body of an error response. The `code` is a stable value clients can\nbranch on; the `message` is a human-readable explanation.\n","required":["code","message"],"properties":{"code":{"$ref":"#/components/schemas/ErrorCode"},"message":{"type":"string","description":"Human-readable description of the error.\n"},"details":{"type":["object","null"],"description":"Additional structured information about the error, or `null` if no\nextra details are available.\n","additionalProperties":true}}},"ErrorCode":{"type":"string","description":"Machine-readable error code. The enum contains every code that this API\ncan return.\n\nPossible enum values:\n- `INVALID_REQUEST`: the request body or a query parameter failed validation.\n- `MALFORMED_UUID`: a path parameter that should be a UUID is not one.\n- `UNAUTHORIZED`: the request could not be authenticated.\n- `API_KEY_MISSING`: no API key was supplied.\n- `API_KEY_INVALID`: the supplied API key does not match any known key.\n- `API_KEY_REVOKED`: the supplied API key has been revoked.\n- `PLAN_FEATURE_REQUIRED`: the account plan does not include a required feature.\n- `SUBSCRIPTION_FEATURE_REQUIRED`: a new Marketplace purchase requires a paid plan or assigned seat.\n- `PRICE_CHANGED`: the selected price differs from the price in the request.\n- `VERSION_CHANGED`: the selected Marketplace version differs from the requested version.\n- `IDEMPOTENCY_CONFLICT`: the same key was used for a different purchase request.\n- `DOWNLOAD_UNAVAILABLE`: the retained private content is temporarily unavailable.\n- `CATALOGUE_CHANGED`: the catalogue changed during pagination; restart the query.\n- `LISTING_NOT_FOUND`: the selected listing is absent or delisted.\n- `MARKETPLACE_DOWNLOAD_ONLY`: Marketplace content supports download and cannot enter generation.\n- `INSUFFICIENT_CREDITS`: the account does not have enough credits for this request.\n- `QUOTA_EXCEEDED`: a usage quota for the account has been exceeded.\n- `FILE_TOO_LARGE`: an uploaded or referenced file exceeds the allowed size.\n- `UPLOAD_TIMEOUT`: an image search upload exceeded 60 seconds. Try a smaller file or a faster connection.\n- `INVALID_CONTENT_TYPE`: a file's content type does not match its declared or expected type.\n- `UNSUPPORTED_ASSET_FORMAT`: a file's extension is not one of the supported asset formats.\n- `FORMAT_NOT_AVAILABLE`: the requested downloadable format does not exist for this asset.\n- `INVALID_FBX_ZIP_STRUCTURE`: a `.zip` upload is not a valid FBX bundle. The error message says why.\n- `IMAGE_RESOLUTION_EXCEEDED`: an image is larger than 4096 by 4096 pixels, or a texture in a mesh file is larger than 8192 by 8192 pixels.\n- `VALIDATION_FAILED`: the API could not check the uploaded file. Upload it again. This is the `error.code` of an upload status read. A failed batch item or run uses the same word with another meaning (see `ExecutionErrorBody`).\n- `UPLOAD_EXPIRED`: the upload did not finish within 1 hour. Upload the file again.\n- `MESH_REQUIREMENTS_NOT_MET`: the mesh file has no polygon geometry, no base-color texture, no UV coordinates, or it names a texture that the upload does not hold.\n- `COLLECTION_NOT_FOUND`: the collection does not exist in your account.\n- `PROJECT_NOT_FOUND`: the project does not exist, or another account owns it.\n- `GRAPH_NOT_FOUND`: the graph does not exist in this project.\n- `NODE_NOT_FOUND`: the node does not exist in this graph.\n- `GROUP_NOT_FOUND`: the group does not exist in this graph.\n- `PROJECT_NODE_LIMIT_EXCEEDED`: the project already holds as many nodes as it may hold.\n- `CONFLICT`: the request conflicts with the current state, so the server made no change.\n- `ASSET_NOT_FOUND`: the asset does not exist or does not belong to the account.\n- `ASSET_IN_USE`: an active execution uses a component, or another PBR execution shares a source or target component.\n- `BATCH_TOO_LARGE`: the batch contains more items than the endpoint allows.\n- `CONCURRENT_EXECUTION_LIMIT_EXCEEDED`: the account has reached its limit on simultaneous submissions.\n- `PBR_FAILURE_CAP_EXCEEDED`: the account has too many recent failed PBR runs; new submissions are temporarily blocked.\n- `EXECUTION_NOT_FOUND`: the execution or batch does not exist or does not belong to the account.\n- `EXECUTION_IN_PROGRESS`: the request conflicts with an execution that is still running.\n- `RATE_LIMITED`: the API key's rate limit was exceeded.\n- `SERVICE_UNAVAILABLE`: the requested operation is temporarily unavailable; retry later.\n- `MAINTENANCE_MODE`: the API is temporarily unavailable for maintenance.\n- `INTERNAL_SERVER_ERROR`: an unexpected server error occurred.\n- `WORKFLOW_CREATION_FAILED`: the API could not start the requested generation.\n- `WORKFLOW_API_ERROR`: generation stopped because of an unexpected error.\n","enum":["INVALID_REQUEST","MALFORMED_UUID","UNAUTHORIZED","API_KEY_MISSING","API_KEY_INVALID","API_KEY_REVOKED","PLAN_FEATURE_REQUIRED","SUBSCRIPTION_FEATURE_REQUIRED","PRICE_CHANGED","VERSION_CHANGED","IDEMPOTENCY_CONFLICT","DOWNLOAD_UNAVAILABLE","CATALOGUE_CHANGED","LISTING_NOT_FOUND","MARKETPLACE_DOWNLOAD_ONLY","INSUFFICIENT_CREDITS","QUOTA_EXCEEDED","FILE_TOO_LARGE","UPLOAD_TIMEOUT","INVALID_CONTENT_TYPE","UNSUPPORTED_ASSET_FORMAT","FORMAT_NOT_AVAILABLE","INVALID_FBX_ZIP_STRUCTURE","IMAGE_RESOLUTION_EXCEEDED","VALIDATION_FAILED","UPLOAD_EXPIRED","MESH_REQUIREMENTS_NOT_MET","COLLECTION_NOT_FOUND","PROJECT_NOT_FOUND","GRAPH_NOT_FOUND","NODE_NOT_FOUND","GROUP_NOT_FOUND","PROJECT_NODE_LIMIT_EXCEEDED","CONFLICT","ASSET_NOT_FOUND","ASSET_IN_USE","BATCH_TOO_LARGE","CONCURRENT_EXECUTION_LIMIT_EXCEEDED","PBR_FAILURE_CAP_EXCEEDED","EXECUTION_NOT_FOUND","EXECUTION_IN_PROGRESS","RATE_LIMITED","SERVICE_UNAVAILABLE","MAINTENANCE_MODE","INTERNAL_SERVER_ERROR","WORKFLOW_CREATION_FAILED","WORKFLOW_API_ERROR"]},"PlanFeatureRequiredError":{"type":"object","required":["error"],"description":"The error envelope for a missing subscription feature.","properties":{"error":{"type":"object","required":["code","message","details"],"description":"The missing-feature error body.","properties":{"code":{"type":"string","const":"PLAN_FEATURE_REQUIRED","description":"Stable error code for a missing subscription feature."},"message":{"type":"string","description":"Human-readable description of the error."},"details":{"$ref":"#/components/schemas/PlanFeatureRequiredErrorDetails"}}}}},"PlanFeatureRequiredErrorDetails":{"type":"object","required":["feature","upgrade_plan_codes"],"description":"The missing feature and the active plans that provide it.","properties":{"feature":{"$ref":"#/components/schemas/SubscriptionFeature"},"upgrade_plan_codes":{"type":"array","description":"Active plans available for purchase that provide the missing\nfeature. The array uses plan class and opaque code order.\n","items":{"$ref":"#/components/schemas/SubscriptionPlanCode"}}}},"SubscriptionFeature":{"type":"string","description":"Product capability available to the account.\n\nPossible enum values:\n- `commercial_license`: commercial-use rights.\n- `api_pbr`: PBR generation through the Public Platform API.\n- `api_asset_download`: asset downloads through the Public Platform API.\n- `custom_polycount`: custom polygon counts for 3D generation.\n- `image_edit`: image editing.\n- `multiview`: multiview generation.\n- `asset_download`: asset downloads in the Marso web app.\n- `api_access`: access to the Public Platform API.\n- `scene_generation`: scene generation and multi-asset runs in the Marso web app.\n- `application_apps`: the Sim Ready and Game Ready apps.\n","enum":["commercial_license","api_pbr","api_asset_download","custom_polycount","image_edit","multiview","asset_download","api_access","scene_generation","application_apps"]},"SubscriptionPlanCode":{"type":"string","pattern":"^plan_[A-Za-z0-9]{7,64}$","description":"Opaque and immutable code for a subscription plan. A plan display name\ncan change. The code starts with `plan_`, followed by 7 to 64 ASCII\nletters or digits.\n"}},"responses":{"Unauthorized":{"description":"The API key is missing, invalid, or revoked. Possible error codes:\n`API_KEY_MISSING`, `API_KEY_INVALID`, `API_KEY_REVOKED`, or `UNAUTHORIZED`.\n","content":{"application/json":{"schema":{"$ref":"#/components/schemas/Error"}}}},"PlanFeatureRequired":{"description":"The account does not have the plan feature required by this operation\n(`PLAN_FEATURE_REQUIRED`). The Free plan lacks `api_access`, so every\noperation refuses a Free account with this response. An account that\nlacks `api_pbr` or `api_asset_download` also gets it on the routes that\nneed those features.\n","content":{"application/json":{"schema":{"$ref":"#/components/schemas/PlanFeatureRequiredError"}}}},"RateLimited":{"description":"Rate limit exceeded (`RATE_LIMITED`). The response includes a `Retry-After`\nheader with the number of seconds to wait before retrying, plus the\n`X-RateLimit-*` headers. Those headers are also present on successful (2xx)\nresponses so a client can pace itself.\n","headers":{"Retry-After":{"description":"Seconds to wait before retrying.","schema":{"type":"integer"}},"X-RateLimit-Limit":{"description":"Request burst capacity for the API key.","schema":{"type":"integer"}},"X-RateLimit-Remaining":{"description":"Requests remaining in the current burst window.","schema":{"type":"integer"}},"X-RateLimit-Reset":{"description":"Unix epoch seconds when the burst capacity is fully restored.\n","schema":{"type":"integer"}}},"content":{"application/json":{"schema":{"$ref":"#/components/schemas/Error"}}}}}},"paths":{"/collections":{"get":{"operationId":"listCollections","tags":["collections"],"summary":"List collections","description":"Returns your collections after name, tag, and date filters. Equal creation dates use the collection ID as a stable tie-break.","parameters":[{"name":"limit","in":"query","required":false,"description":"The page size. Defaults to 50; the API reduces values above 100 to 100.","schema":{"type":"integer","minimum":1,"default":50}},{"name":"cursor","in":"query","required":false,"description":"The opaque continuation token. Keep the same filters and sort order.","schema":{"type":"string"}},{"name":"q","in":"query","required":false,"description":"The literal case-insensitive substring of the collection name.","schema":{"type":"string","maxLength":100}},{"name":"tag","in":"query","required":false,"description":"The exact tags to match. Repeat this parameter for ALL matching tags.","schema":{"type":"array","items":{"type":"string","minLength":1,"maxLength":32},"maxItems":20},"style":"form","explode":true},{"name":"sort","in":"query","required":false,"description":"The creation-time order. Possible enum values: newest shows the newest first; oldest shows the oldest first.","schema":{"type":"string","enum":["newest","oldest"],"default":"newest"}},{"name":"created_from","in":"query","required":false,"description":"The created from bound in epoch milliseconds. From is inclusive and to is exclusive.","schema":{"type":"integer","minimum":0,"maximum":253402300799999}},{"name":"created_to","in":"query","required":false,"description":"The created to bound in epoch milliseconds. From is inclusive and to is exclusive.","schema":{"type":"integer","minimum":0,"maximum":253402300799999}},{"name":"updated_from","in":"query","required":false,"description":"The updated from bound in epoch milliseconds. From is inclusive and to is exclusive.","schema":{"type":"integer","minimum":0,"maximum":253402300799999}},{"name":"updated_to","in":"query","required":false,"description":"The updated to bound in epoch milliseconds. From is inclusive and to is exclusive.","schema":{"type":"integer","minimum":0,"maximum":253402300799999}}],"responses":{"200":{"description":"The requested collection data.","content":{"application/json":{"schema":{"$ref":"#/components/schemas/CollectionList"}}}},"400":{"description":"The request, filters, cursor, or image is invalid.","content":{"application/json":{"schema":{"$ref":"#/components/schemas/Error"}}}},"401":{"$ref":"#/components/responses/Unauthorized"},"403":{"$ref":"#/components/responses/PlanFeatureRequired"},"404":{"description":"The collection or an added asset does not exist in your account.","content":{"application/json":{"schema":{"$ref":"#/components/schemas/Error"}}}},"429":{"$ref":"#/components/responses/RateLimited"},"500":{"description":"The API could not complete the request. Retry later.","content":{"application/json":{"schema":{"$ref":"#/components/schemas/Error"}}}}}}}}}
```

## Create a collection

> Creates an empty collection with the supplied name and optional tags. Names need not be unique.

```json
{"openapi":"3.1.0","info":{"title":"Marso Studio API","version":"0.0.1"},"tags":[{"name":"collections","description":"Manage groups of logical Library Assets and their images."}],"servers":[{"url":"https://api.marso.app/api/public/v1/","description":"Production server."}],"security":[{"apiKey":[]}],"components":{"securitySchemes":{"apiKey":{"type":"http","scheme":"bearer","description":"API key created in the Marso Studio dashboard. The value has the form\n`mxr_live_<entropy>` and is sent as a Bearer token in the `Authorization`\nheader.\n"}},"schemas":{"CreateCollectionRequest":{"type":"object","description":"The collection name and optional tags.","properties":{"name":{"type":"string","description":"The collection name, from 1 to 100 Unicode characters.","minLength":1,"maxLength":100},"tags":{"type":"array","description":"The display tags. Each tag has 1 to 32 Unicode characters after trim. Case-insensitive duplicates return 400.","items":{"type":"string","description":"The tag text.","minLength":1,"maxLength":32},"maxItems":20}},"required":["name"],"additionalProperties":false},"Collection":{"type":"object","description":"A named group of logical Library Assets.","properties":{"marketplace":{"$ref":"#/components/schemas/MarketplaceCollectionInfo","description":"The source version. Absent for a studio Collection."},"collection_id":{"type":"string","description":"The collection ID.","format":"uuid"},"name":{"type":"string","description":"The collection name, from 1 to 100 Unicode characters.","minLength":1,"maxLength":100},"tags":{"type":"array","description":"The display tags. Each tag has 1 to 32 Unicode characters after trim. Case-insensitive duplicates return 400.","items":{"type":"string","description":"The tag text.","minLength":1,"maxLength":32},"maxItems":20},"creator":{"$ref":"#/components/schemas/CollectionCreator"},"asset_count":{"type":"integer","description":"The number of stored member references, including unavailable members.","minimum":0},"thumbnail_url":{"type":"string","description":"The preview URL. It travels with thumbnail_url_expires_at."},"thumbnail_url_expires_at":{"$ref":"#/components/schemas/EpochMillis"},"created_at":{"$ref":"#/components/schemas/EpochMillis"},"updated_at":{"$ref":"#/components/schemas/EpochMillis"}},"required":["collection_id","name","tags","creator","asset_count","created_at","updated_at"]},"MarketplaceCollectionInfo":{"type":"object","description":"The immutable marketplace version that created this personal Collection.","properties":{"listing_id":{"type":"string","format":"uuid","description":"The canonical marketplace listing ID."},"revision":{"type":"integer","minimum":1,"maximum":9007199254740991,"description":"The exact immutable revision, from 1 to 9007199254740991."},"source_type":{"type":"string","enum":["curated"],"description":"Possible enum values: `curated`: content from the curated marketplace."}},"required":["listing_id","revision","source_type"]},"CollectionCreator":{"type":"object","description":"The User who created the collection.","properties":{"user_id":{"type":"string","description":"The creator User ID."},"name":{"type":"string","description":"The current profile name. Absent if unavailable."}},"required":["user_id"]},"EpochMillis":{"type":"integer","format":"int64","description":"Time represented as milliseconds since the Unix epoch.\n"},"Error":{"type":"object","required":["error"],"description":"Canonical error envelope. The error payload is nested under the `error`\nkey.\n","properties":{"error":{"$ref":"#/components/schemas/ErrorBody"}}},"ErrorBody":{"type":"object","description":"The body of an error response. The `code` is a stable value clients can\nbranch on; the `message` is a human-readable explanation.\n","required":["code","message"],"properties":{"code":{"$ref":"#/components/schemas/ErrorCode"},"message":{"type":"string","description":"Human-readable description of the error.\n"},"details":{"type":["object","null"],"description":"Additional structured information about the error, or `null` if no\nextra details are available.\n","additionalProperties":true}}},"ErrorCode":{"type":"string","description":"Machine-readable error code. The enum contains every code that this API\ncan return.\n\nPossible enum values:\n- `INVALID_REQUEST`: the request body or a query parameter failed validation.\n- `MALFORMED_UUID`: a path parameter that should be a UUID is not one.\n- `UNAUTHORIZED`: the request could not be authenticated.\n- `API_KEY_MISSING`: no API key was supplied.\n- `API_KEY_INVALID`: the supplied API key does not match any known key.\n- `API_KEY_REVOKED`: the supplied API key has been revoked.\n- `PLAN_FEATURE_REQUIRED`: the account plan does not include a required feature.\n- `SUBSCRIPTION_FEATURE_REQUIRED`: a new Marketplace purchase requires a paid plan or assigned seat.\n- `PRICE_CHANGED`: the selected price differs from the price in the request.\n- `VERSION_CHANGED`: the selected Marketplace version differs from the requested version.\n- `IDEMPOTENCY_CONFLICT`: the same key was used for a different purchase request.\n- `DOWNLOAD_UNAVAILABLE`: the retained private content is temporarily unavailable.\n- `CATALOGUE_CHANGED`: the catalogue changed during pagination; restart the query.\n- `LISTING_NOT_FOUND`: the selected listing is absent or delisted.\n- `MARKETPLACE_DOWNLOAD_ONLY`: Marketplace content supports download and cannot enter generation.\n- `INSUFFICIENT_CREDITS`: the account does not have enough credits for this request.\n- `QUOTA_EXCEEDED`: a usage quota for the account has been exceeded.\n- `FILE_TOO_LARGE`: an uploaded or referenced file exceeds the allowed size.\n- `UPLOAD_TIMEOUT`: an image search upload exceeded 60 seconds. Try a smaller file or a faster connection.\n- `INVALID_CONTENT_TYPE`: a file's content type does not match its declared or expected type.\n- `UNSUPPORTED_ASSET_FORMAT`: a file's extension is not one of the supported asset formats.\n- `FORMAT_NOT_AVAILABLE`: the requested downloadable format does not exist for this asset.\n- `INVALID_FBX_ZIP_STRUCTURE`: a `.zip` upload is not a valid FBX bundle. The error message says why.\n- `IMAGE_RESOLUTION_EXCEEDED`: an image is larger than 4096 by 4096 pixels, or a texture in a mesh file is larger than 8192 by 8192 pixels.\n- `VALIDATION_FAILED`: the API could not check the uploaded file. Upload it again. This is the `error.code` of an upload status read. A failed batch item or run uses the same word with another meaning (see `ExecutionErrorBody`).\n- `UPLOAD_EXPIRED`: the upload did not finish within 1 hour. Upload the file again.\n- `MESH_REQUIREMENTS_NOT_MET`: the mesh file has no polygon geometry, no base-color texture, no UV coordinates, or it names a texture that the upload does not hold.\n- `COLLECTION_NOT_FOUND`: the collection does not exist in your account.\n- `PROJECT_NOT_FOUND`: the project does not exist, or another account owns it.\n- `GRAPH_NOT_FOUND`: the graph does not exist in this project.\n- `NODE_NOT_FOUND`: the node does not exist in this graph.\n- `GROUP_NOT_FOUND`: the group does not exist in this graph.\n- `PROJECT_NODE_LIMIT_EXCEEDED`: the project already holds as many nodes as it may hold.\n- `CONFLICT`: the request conflicts with the current state, so the server made no change.\n- `ASSET_NOT_FOUND`: the asset does not exist or does not belong to the account.\n- `ASSET_IN_USE`: an active execution uses a component, or another PBR execution shares a source or target component.\n- `BATCH_TOO_LARGE`: the batch contains more items than the endpoint allows.\n- `CONCURRENT_EXECUTION_LIMIT_EXCEEDED`: the account has reached its limit on simultaneous submissions.\n- `PBR_FAILURE_CAP_EXCEEDED`: the account has too many recent failed PBR runs; new submissions are temporarily blocked.\n- `EXECUTION_NOT_FOUND`: the execution or batch does not exist or does not belong to the account.\n- `EXECUTION_IN_PROGRESS`: the request conflicts with an execution that is still running.\n- `RATE_LIMITED`: the API key's rate limit was exceeded.\n- `SERVICE_UNAVAILABLE`: the requested operation is temporarily unavailable; retry later.\n- `MAINTENANCE_MODE`: the API is temporarily unavailable for maintenance.\n- `INTERNAL_SERVER_ERROR`: an unexpected server error occurred.\n- `WORKFLOW_CREATION_FAILED`: the API could not start the requested generation.\n- `WORKFLOW_API_ERROR`: generation stopped because of an unexpected error.\n","enum":["INVALID_REQUEST","MALFORMED_UUID","UNAUTHORIZED","API_KEY_MISSING","API_KEY_INVALID","API_KEY_REVOKED","PLAN_FEATURE_REQUIRED","SUBSCRIPTION_FEATURE_REQUIRED","PRICE_CHANGED","VERSION_CHANGED","IDEMPOTENCY_CONFLICT","DOWNLOAD_UNAVAILABLE","CATALOGUE_CHANGED","LISTING_NOT_FOUND","MARKETPLACE_DOWNLOAD_ONLY","INSUFFICIENT_CREDITS","QUOTA_EXCEEDED","FILE_TOO_LARGE","UPLOAD_TIMEOUT","INVALID_CONTENT_TYPE","UNSUPPORTED_ASSET_FORMAT","FORMAT_NOT_AVAILABLE","INVALID_FBX_ZIP_STRUCTURE","IMAGE_RESOLUTION_EXCEEDED","VALIDATION_FAILED","UPLOAD_EXPIRED","MESH_REQUIREMENTS_NOT_MET","COLLECTION_NOT_FOUND","PROJECT_NOT_FOUND","GRAPH_NOT_FOUND","NODE_NOT_FOUND","GROUP_NOT_FOUND","PROJECT_NODE_LIMIT_EXCEEDED","CONFLICT","ASSET_NOT_FOUND","ASSET_IN_USE","BATCH_TOO_LARGE","CONCURRENT_EXECUTION_LIMIT_EXCEEDED","PBR_FAILURE_CAP_EXCEEDED","EXECUTION_NOT_FOUND","EXECUTION_IN_PROGRESS","RATE_LIMITED","SERVICE_UNAVAILABLE","MAINTENANCE_MODE","INTERNAL_SERVER_ERROR","WORKFLOW_CREATION_FAILED","WORKFLOW_API_ERROR"]},"PlanFeatureRequiredError":{"type":"object","required":["error"],"description":"The error envelope for a missing subscription feature.","properties":{"error":{"type":"object","required":["code","message","details"],"description":"The missing-feature error body.","properties":{"code":{"type":"string","const":"PLAN_FEATURE_REQUIRED","description":"Stable error code for a missing subscription feature."},"message":{"type":"string","description":"Human-readable description of the error."},"details":{"$ref":"#/components/schemas/PlanFeatureRequiredErrorDetails"}}}}},"PlanFeatureRequiredErrorDetails":{"type":"object","required":["feature","upgrade_plan_codes"],"description":"The missing feature and the active plans that provide it.","properties":{"feature":{"$ref":"#/components/schemas/SubscriptionFeature"},"upgrade_plan_codes":{"type":"array","description":"Active plans available for purchase that provide the missing\nfeature. The array uses plan class and opaque code order.\n","items":{"$ref":"#/components/schemas/SubscriptionPlanCode"}}}},"SubscriptionFeature":{"type":"string","description":"Product capability available to the account.\n\nPossible enum values:\n- `commercial_license`: commercial-use rights.\n- `api_pbr`: PBR generation through the Public Platform API.\n- `api_asset_download`: asset downloads through the Public Platform API.\n- `custom_polycount`: custom polygon counts for 3D generation.\n- `image_edit`: image editing.\n- `multiview`: multiview generation.\n- `asset_download`: asset downloads in the Marso web app.\n- `api_access`: access to the Public Platform API.\n- `scene_generation`: scene generation and multi-asset runs in the Marso web app.\n- `application_apps`: the Sim Ready and Game Ready apps.\n","enum":["commercial_license","api_pbr","api_asset_download","custom_polycount","image_edit","multiview","asset_download","api_access","scene_generation","application_apps"]},"SubscriptionPlanCode":{"type":"string","pattern":"^plan_[A-Za-z0-9]{7,64}$","description":"Opaque and immutable code for a subscription plan. A plan display name\ncan change. The code starts with `plan_`, followed by 7 to 64 ASCII\nletters or digits.\n"}},"responses":{"Unauthorized":{"description":"The API key is missing, invalid, or revoked. Possible error codes:\n`API_KEY_MISSING`, `API_KEY_INVALID`, `API_KEY_REVOKED`, or `UNAUTHORIZED`.\n","content":{"application/json":{"schema":{"$ref":"#/components/schemas/Error"}}}},"PlanFeatureRequired":{"description":"The account does not have the plan feature required by this operation\n(`PLAN_FEATURE_REQUIRED`). The Free plan lacks `api_access`, so every\noperation refuses a Free account with this response. An account that\nlacks `api_pbr` or `api_asset_download` also gets it on the routes that\nneed those features.\n","content":{"application/json":{"schema":{"$ref":"#/components/schemas/PlanFeatureRequiredError"}}}},"RateLimited":{"description":"Rate limit exceeded (`RATE_LIMITED`). The response includes a `Retry-After`\nheader with the number of seconds to wait before retrying, plus the\n`X-RateLimit-*` headers. Those headers are also present on successful (2xx)\nresponses so a client can pace itself.\n","headers":{"Retry-After":{"description":"Seconds to wait before retrying.","schema":{"type":"integer"}},"X-RateLimit-Limit":{"description":"Request burst capacity for the API key.","schema":{"type":"integer"}},"X-RateLimit-Remaining":{"description":"Requests remaining in the current burst window.","schema":{"type":"integer"}},"X-RateLimit-Reset":{"description":"Unix epoch seconds when the burst capacity is fully restored.\n","schema":{"type":"integer"}}},"content":{"application/json":{"schema":{"$ref":"#/components/schemas/Error"}}}}}},"paths":{"/collections":{"post":{"operationId":"createCollection","tags":["collections"],"summary":"Create a collection","description":"Creates an empty collection with the supplied name and optional tags. Names need not be unique.","requestBody":{"required":true,"description":"The request fields.","content":{"application/json":{"schema":{"$ref":"#/components/schemas/CreateCollectionRequest"}}}},"responses":{"201":{"description":"The requested collection data.","content":{"application/json":{"schema":{"$ref":"#/components/schemas/Collection"}}}},"400":{"description":"The request, filters, cursor, or image is invalid.","content":{"application/json":{"schema":{"$ref":"#/components/schemas/Error"}}}},"401":{"$ref":"#/components/responses/Unauthorized"},"403":{"$ref":"#/components/responses/PlanFeatureRequired"},"404":{"description":"The collection or an added asset does not exist in your account.","content":{"application/json":{"schema":{"$ref":"#/components/schemas/Error"}}}},"429":{"$ref":"#/components/responses/RateLimited"},"500":{"description":"The API could not complete the request. Retry later.","content":{"application/json":{"schema":{"$ref":"#/components/schemas/Error"}}}}}}}}}
```

## Read collection membership

> Returns membership for the Library Assets in the request. It does not list every Collection.

```json
{"openapi":"3.1.0","info":{"title":"Marso Studio API","version":"0.0.1"},"tags":[{"name":"collections","description":"Manage groups of logical Library Assets and their images."}],"servers":[{"url":"https://api.marso.app/api/public/v1/","description":"Production server."}],"security":[{"apiKey":[]}],"components":{"securitySchemes":{"apiKey":{"type":"http","scheme":"bearer","description":"API key created in the Marso Studio dashboard. The value has the form\n`mxr_live_<entropy>` and is sent as a Bearer token in the `Authorization`\nheader.\n"}},"schemas":{"CollectionAssetsRequest":{"type":"object","description":"The member IDs to add or inspect.","properties":{"library_asset_ids":{"type":"array","description":"The IDs of Library Assets, from 1 to 100 per request.","items":{"type":"string","description":"The logical Library Asset ID.","format":"uuid"},"minItems":1,"maxItems":100}},"required":["library_asset_ids"],"additionalProperties":false},"CollectionMembershipList":{"type":"object","description":"Membership in distinct request order.","properties":{"data":{"type":"array","description":"The requested memberships.","items":{"$ref":"#/components/schemas/CollectionMembership"}}},"required":["data"]},"CollectionMembership":{"type":"object","description":"Membership of one requested live asset.","properties":{"library_asset_id":{"type":"string","description":"The logical Library Asset ID.","format":"uuid"},"collection_ids":{"type":"array","description":"The collection IDs. Empty for unavailable or unowned assets.","items":{"type":"string","description":"The collection ID.","format":"uuid"}}},"required":["library_asset_id","collection_ids"]},"Error":{"type":"object","required":["error"],"description":"Canonical error envelope. The error payload is nested under the `error`\nkey.\n","properties":{"error":{"$ref":"#/components/schemas/ErrorBody"}}},"ErrorBody":{"type":"object","description":"The body of an error response. The `code` is a stable value clients can\nbranch on; the `message` is a human-readable explanation.\n","required":["code","message"],"properties":{"code":{"$ref":"#/components/schemas/ErrorCode"},"message":{"type":"string","description":"Human-readable description of the error.\n"},"details":{"type":["object","null"],"description":"Additional structured information about the error, or `null` if no\nextra details are available.\n","additionalProperties":true}}},"ErrorCode":{"type":"string","description":"Machine-readable error code. The enum contains every code that this API\ncan return.\n\nPossible enum values:\n- `INVALID_REQUEST`: the request body or a query parameter failed validation.\n- `MALFORMED_UUID`: a path parameter that should be a UUID is not one.\n- `UNAUTHORIZED`: the request could not be authenticated.\n- `API_KEY_MISSING`: no API key was supplied.\n- `API_KEY_INVALID`: the supplied API key does not match any known key.\n- `API_KEY_REVOKED`: the supplied API key has been revoked.\n- `PLAN_FEATURE_REQUIRED`: the account plan does not include a required feature.\n- `SUBSCRIPTION_FEATURE_REQUIRED`: a new Marketplace purchase requires a paid plan or assigned seat.\n- `PRICE_CHANGED`: the selected price differs from the price in the request.\n- `VERSION_CHANGED`: the selected Marketplace version differs from the requested version.\n- `IDEMPOTENCY_CONFLICT`: the same key was used for a different purchase request.\n- `DOWNLOAD_UNAVAILABLE`: the retained private content is temporarily unavailable.\n- `CATALOGUE_CHANGED`: the catalogue changed during pagination; restart the query.\n- `LISTING_NOT_FOUND`: the selected listing is absent or delisted.\n- `MARKETPLACE_DOWNLOAD_ONLY`: Marketplace content supports download and cannot enter generation.\n- `INSUFFICIENT_CREDITS`: the account does not have enough credits for this request.\n- `QUOTA_EXCEEDED`: a usage quota for the account has been exceeded.\n- `FILE_TOO_LARGE`: an uploaded or referenced file exceeds the allowed size.\n- `UPLOAD_TIMEOUT`: an image search upload exceeded 60 seconds. Try a smaller file or a faster connection.\n- `INVALID_CONTENT_TYPE`: a file's content type does not match its declared or expected type.\n- `UNSUPPORTED_ASSET_FORMAT`: a file's extension is not one of the supported asset formats.\n- `FORMAT_NOT_AVAILABLE`: the requested downloadable format does not exist for this asset.\n- `INVALID_FBX_ZIP_STRUCTURE`: a `.zip` upload is not a valid FBX bundle. The error message says why.\n- `IMAGE_RESOLUTION_EXCEEDED`: an image is larger than 4096 by 4096 pixels, or a texture in a mesh file is larger than 8192 by 8192 pixels.\n- `VALIDATION_FAILED`: the API could not check the uploaded file. Upload it again. This is the `error.code` of an upload status read. A failed batch item or run uses the same word with another meaning (see `ExecutionErrorBody`).\n- `UPLOAD_EXPIRED`: the upload did not finish within 1 hour. Upload the file again.\n- `MESH_REQUIREMENTS_NOT_MET`: the mesh file has no polygon geometry, no base-color texture, no UV coordinates, or it names a texture that the upload does not hold.\n- `COLLECTION_NOT_FOUND`: the collection does not exist in your account.\n- `PROJECT_NOT_FOUND`: the project does not exist, or another account owns it.\n- `GRAPH_NOT_FOUND`: the graph does not exist in this project.\n- `NODE_NOT_FOUND`: the node does not exist in this graph.\n- `GROUP_NOT_FOUND`: the group does not exist in this graph.\n- `PROJECT_NODE_LIMIT_EXCEEDED`: the project already holds as many nodes as it may hold.\n- `CONFLICT`: the request conflicts with the current state, so the server made no change.\n- `ASSET_NOT_FOUND`: the asset does not exist or does not belong to the account.\n- `ASSET_IN_USE`: an active execution uses a component, or another PBR execution shares a source or target component.\n- `BATCH_TOO_LARGE`: the batch contains more items than the endpoint allows.\n- `CONCURRENT_EXECUTION_LIMIT_EXCEEDED`: the account has reached its limit on simultaneous submissions.\n- `PBR_FAILURE_CAP_EXCEEDED`: the account has too many recent failed PBR runs; new submissions are temporarily blocked.\n- `EXECUTION_NOT_FOUND`: the execution or batch does not exist or does not belong to the account.\n- `EXECUTION_IN_PROGRESS`: the request conflicts with an execution that is still running.\n- `RATE_LIMITED`: the API key's rate limit was exceeded.\n- `SERVICE_UNAVAILABLE`: the requested operation is temporarily unavailable; retry later.\n- `MAINTENANCE_MODE`: the API is temporarily unavailable for maintenance.\n- `INTERNAL_SERVER_ERROR`: an unexpected server error occurred.\n- `WORKFLOW_CREATION_FAILED`: the API could not start the requested generation.\n- `WORKFLOW_API_ERROR`: generation stopped because of an unexpected error.\n","enum":["INVALID_REQUEST","MALFORMED_UUID","UNAUTHORIZED","API_KEY_MISSING","API_KEY_INVALID","API_KEY_REVOKED","PLAN_FEATURE_REQUIRED","SUBSCRIPTION_FEATURE_REQUIRED","PRICE_CHANGED","VERSION_CHANGED","IDEMPOTENCY_CONFLICT","DOWNLOAD_UNAVAILABLE","CATALOGUE_CHANGED","LISTING_NOT_FOUND","MARKETPLACE_DOWNLOAD_ONLY","INSUFFICIENT_CREDITS","QUOTA_EXCEEDED","FILE_TOO_LARGE","UPLOAD_TIMEOUT","INVALID_CONTENT_TYPE","UNSUPPORTED_ASSET_FORMAT","FORMAT_NOT_AVAILABLE","INVALID_FBX_ZIP_STRUCTURE","IMAGE_RESOLUTION_EXCEEDED","VALIDATION_FAILED","UPLOAD_EXPIRED","MESH_REQUIREMENTS_NOT_MET","COLLECTION_NOT_FOUND","PROJECT_NOT_FOUND","GRAPH_NOT_FOUND","NODE_NOT_FOUND","GROUP_NOT_FOUND","PROJECT_NODE_LIMIT_EXCEEDED","CONFLICT","ASSET_NOT_FOUND","ASSET_IN_USE","BATCH_TOO_LARGE","CONCURRENT_EXECUTION_LIMIT_EXCEEDED","PBR_FAILURE_CAP_EXCEEDED","EXECUTION_NOT_FOUND","EXECUTION_IN_PROGRESS","RATE_LIMITED","SERVICE_UNAVAILABLE","MAINTENANCE_MODE","INTERNAL_SERVER_ERROR","WORKFLOW_CREATION_FAILED","WORKFLOW_API_ERROR"]},"PlanFeatureRequiredError":{"type":"object","required":["error"],"description":"The error envelope for a missing subscription feature.","properties":{"error":{"type":"object","required":["code","message","details"],"description":"The missing-feature error body.","properties":{"code":{"type":"string","const":"PLAN_FEATURE_REQUIRED","description":"Stable error code for a missing subscription feature."},"message":{"type":"string","description":"Human-readable description of the error."},"details":{"$ref":"#/components/schemas/PlanFeatureRequiredErrorDetails"}}}}},"PlanFeatureRequiredErrorDetails":{"type":"object","required":["feature","upgrade_plan_codes"],"description":"The missing feature and the active plans that provide it.","properties":{"feature":{"$ref":"#/components/schemas/SubscriptionFeature"},"upgrade_plan_codes":{"type":"array","description":"Active plans available for purchase that provide the missing\nfeature. The array uses plan class and opaque code order.\n","items":{"$ref":"#/components/schemas/SubscriptionPlanCode"}}}},"SubscriptionFeature":{"type":"string","description":"Product capability available to the account.\n\nPossible enum values:\n- `commercial_license`: commercial-use rights.\n- `api_pbr`: PBR generation through the Public Platform API.\n- `api_asset_download`: asset downloads through the Public Platform API.\n- `custom_polycount`: custom polygon counts for 3D generation.\n- `image_edit`: image editing.\n- `multiview`: multiview generation.\n- `asset_download`: asset downloads in the Marso web app.\n- `api_access`: access to the Public Platform API.\n- `scene_generation`: scene generation and multi-asset runs in the Marso web app.\n- `application_apps`: the Sim Ready and Game Ready apps.\n","enum":["commercial_license","api_pbr","api_asset_download","custom_polycount","image_edit","multiview","asset_download","api_access","scene_generation","application_apps"]},"SubscriptionPlanCode":{"type":"string","pattern":"^plan_[A-Za-z0-9]{7,64}$","description":"Opaque and immutable code for a subscription plan. A plan display name\ncan change. The code starts with `plan_`, followed by 7 to 64 ASCII\nletters or digits.\n"}},"responses":{"Unauthorized":{"description":"The API key is missing, invalid, or revoked. Possible error codes:\n`API_KEY_MISSING`, `API_KEY_INVALID`, `API_KEY_REVOKED`, or `UNAUTHORIZED`.\n","content":{"application/json":{"schema":{"$ref":"#/components/schemas/Error"}}}},"PlanFeatureRequired":{"description":"The account does not have the plan feature required by this operation\n(`PLAN_FEATURE_REQUIRED`). The Free plan lacks `api_access`, so every\noperation refuses a Free account with this response. An account that\nlacks `api_pbr` or `api_asset_download` also gets it on the routes that\nneed those features.\n","content":{"application/json":{"schema":{"$ref":"#/components/schemas/PlanFeatureRequiredError"}}}},"RateLimited":{"description":"Rate limit exceeded (`RATE_LIMITED`). The response includes a `Retry-After`\nheader with the number of seconds to wait before retrying, plus the\n`X-RateLimit-*` headers. Those headers are also present on successful (2xx)\nresponses so a client can pace itself.\n","headers":{"Retry-After":{"description":"Seconds to wait before retrying.","schema":{"type":"integer"}},"X-RateLimit-Limit":{"description":"Request burst capacity for the API key.","schema":{"type":"integer"}},"X-RateLimit-Remaining":{"description":"Requests remaining in the current burst window.","schema":{"type":"integer"}},"X-RateLimit-Reset":{"description":"Unix epoch seconds when the burst capacity is fully restored.\n","schema":{"type":"integer"}}},"content":{"application/json":{"schema":{"$ref":"#/components/schemas/Error"}}}}}},"paths":{"/collections/membership":{"post":{"operationId":"getCollectionMembership","tags":["collections"],"summary":"Read collection membership","description":"Returns membership for the Library Assets in the request. It does not list every Collection.","requestBody":{"required":true,"description":"The request fields.","content":{"application/json":{"schema":{"$ref":"#/components/schemas/CollectionAssetsRequest"}}}},"responses":{"200":{"description":"The requested collection data.","content":{"application/json":{"schema":{"$ref":"#/components/schemas/CollectionMembershipList"}}}},"400":{"description":"The request, filters, cursor, or image is invalid.","content":{"application/json":{"schema":{"$ref":"#/components/schemas/Error"}}}},"401":{"$ref":"#/components/responses/Unauthorized"},"403":{"$ref":"#/components/responses/PlanFeatureRequired"},"404":{"description":"The collection or an added asset does not exist in your account.","content":{"application/json":{"schema":{"$ref":"#/components/schemas/Error"}}}},"429":{"$ref":"#/components/responses/RateLimited"},"500":{"description":"The API could not complete the request. Retry later.","content":{"application/json":{"schema":{"$ref":"#/components/schemas/Error"}}}}}}}}}
```

## Retrieve a collection

> Returns one collection in your account.

```json
{"openapi":"3.1.0","info":{"title":"Marso Studio API","version":"0.0.1"},"tags":[{"name":"collections","description":"Manage groups of logical Library Assets and their images."}],"servers":[{"url":"https://api.marso.app/api/public/v1/","description":"Production server."}],"security":[{"apiKey":[]}],"components":{"securitySchemes":{"apiKey":{"type":"http","scheme":"bearer","description":"API key created in the Marso Studio dashboard. The value has the form\n`mxr_live_<entropy>` and is sent as a Bearer token in the `Authorization`\nheader.\n"}},"schemas":{"Collection":{"type":"object","description":"A named group of logical Library Assets.","properties":{"marketplace":{"$ref":"#/components/schemas/MarketplaceCollectionInfo","description":"The source version. Absent for a studio Collection."},"collection_id":{"type":"string","description":"The collection ID.","format":"uuid"},"name":{"type":"string","description":"The collection name, from 1 to 100 Unicode characters.","minLength":1,"maxLength":100},"tags":{"type":"array","description":"The display tags. Each tag has 1 to 32 Unicode characters after trim. Case-insensitive duplicates return 400.","items":{"type":"string","description":"The tag text.","minLength":1,"maxLength":32},"maxItems":20},"creator":{"$ref":"#/components/schemas/CollectionCreator"},"asset_count":{"type":"integer","description":"The number of stored member references, including unavailable members.","minimum":0},"thumbnail_url":{"type":"string","description":"The preview URL. It travels with thumbnail_url_expires_at."},"thumbnail_url_expires_at":{"$ref":"#/components/schemas/EpochMillis"},"created_at":{"$ref":"#/components/schemas/EpochMillis"},"updated_at":{"$ref":"#/components/schemas/EpochMillis"}},"required":["collection_id","name","tags","creator","asset_count","created_at","updated_at"]},"MarketplaceCollectionInfo":{"type":"object","description":"The immutable marketplace version that created this personal Collection.","properties":{"listing_id":{"type":"string","format":"uuid","description":"The canonical marketplace listing ID."},"revision":{"type":"integer","minimum":1,"maximum":9007199254740991,"description":"The exact immutable revision, from 1 to 9007199254740991."},"source_type":{"type":"string","enum":["curated"],"description":"Possible enum values: `curated`: content from the curated marketplace."}},"required":["listing_id","revision","source_type"]},"CollectionCreator":{"type":"object","description":"The User who created the collection.","properties":{"user_id":{"type":"string","description":"The creator User ID."},"name":{"type":"string","description":"The current profile name. Absent if unavailable."}},"required":["user_id"]},"EpochMillis":{"type":"integer","format":"int64","description":"Time represented as milliseconds since the Unix epoch.\n"},"Error":{"type":"object","required":["error"],"description":"Canonical error envelope. The error payload is nested under the `error`\nkey.\n","properties":{"error":{"$ref":"#/components/schemas/ErrorBody"}}},"ErrorBody":{"type":"object","description":"The body of an error response. The `code` is a stable value clients can\nbranch on; the `message` is a human-readable explanation.\n","required":["code","message"],"properties":{"code":{"$ref":"#/components/schemas/ErrorCode"},"message":{"type":"string","description":"Human-readable description of the error.\n"},"details":{"type":["object","null"],"description":"Additional structured information about the error, or `null` if no\nextra details are available.\n","additionalProperties":true}}},"ErrorCode":{"type":"string","description":"Machine-readable error code. The enum contains every code that this API\ncan return.\n\nPossible enum values:\n- `INVALID_REQUEST`: the request body or a query parameter failed validation.\n- `MALFORMED_UUID`: a path parameter that should be a UUID is not one.\n- `UNAUTHORIZED`: the request could not be authenticated.\n- `API_KEY_MISSING`: no API key was supplied.\n- `API_KEY_INVALID`: the supplied API key does not match any known key.\n- `API_KEY_REVOKED`: the supplied API key has been revoked.\n- `PLAN_FEATURE_REQUIRED`: the account plan does not include a required feature.\n- `SUBSCRIPTION_FEATURE_REQUIRED`: a new Marketplace purchase requires a paid plan or assigned seat.\n- `PRICE_CHANGED`: the selected price differs from the price in the request.\n- `VERSION_CHANGED`: the selected Marketplace version differs from the requested version.\n- `IDEMPOTENCY_CONFLICT`: the same key was used for a different purchase request.\n- `DOWNLOAD_UNAVAILABLE`: the retained private content is temporarily unavailable.\n- `CATALOGUE_CHANGED`: the catalogue changed during pagination; restart the query.\n- `LISTING_NOT_FOUND`: the selected listing is absent or delisted.\n- `MARKETPLACE_DOWNLOAD_ONLY`: Marketplace content supports download and cannot enter generation.\n- `INSUFFICIENT_CREDITS`: the account does not have enough credits for this request.\n- `QUOTA_EXCEEDED`: a usage quota for the account has been exceeded.\n- `FILE_TOO_LARGE`: an uploaded or referenced file exceeds the allowed size.\n- `UPLOAD_TIMEOUT`: an image search upload exceeded 60 seconds. Try a smaller file or a faster connection.\n- `INVALID_CONTENT_TYPE`: a file's content type does not match its declared or expected type.\n- `UNSUPPORTED_ASSET_FORMAT`: a file's extension is not one of the supported asset formats.\n- `FORMAT_NOT_AVAILABLE`: the requested downloadable format does not exist for this asset.\n- `INVALID_FBX_ZIP_STRUCTURE`: a `.zip` upload is not a valid FBX bundle. The error message says why.\n- `IMAGE_RESOLUTION_EXCEEDED`: an image is larger than 4096 by 4096 pixels, or a texture in a mesh file is larger than 8192 by 8192 pixels.\n- `VALIDATION_FAILED`: the API could not check the uploaded file. Upload it again. This is the `error.code` of an upload status read. A failed batch item or run uses the same word with another meaning (see `ExecutionErrorBody`).\n- `UPLOAD_EXPIRED`: the upload did not finish within 1 hour. Upload the file again.\n- `MESH_REQUIREMENTS_NOT_MET`: the mesh file has no polygon geometry, no base-color texture, no UV coordinates, or it names a texture that the upload does not hold.\n- `COLLECTION_NOT_FOUND`: the collection does not exist in your account.\n- `PROJECT_NOT_FOUND`: the project does not exist, or another account owns it.\n- `GRAPH_NOT_FOUND`: the graph does not exist in this project.\n- `NODE_NOT_FOUND`: the node does not exist in this graph.\n- `GROUP_NOT_FOUND`: the group does not exist in this graph.\n- `PROJECT_NODE_LIMIT_EXCEEDED`: the project already holds as many nodes as it may hold.\n- `CONFLICT`: the request conflicts with the current state, so the server made no change.\n- `ASSET_NOT_FOUND`: the asset does not exist or does not belong to the account.\n- `ASSET_IN_USE`: an active execution uses a component, or another PBR execution shares a source or target component.\n- `BATCH_TOO_LARGE`: the batch contains more items than the endpoint allows.\n- `CONCURRENT_EXECUTION_LIMIT_EXCEEDED`: the account has reached its limit on simultaneous submissions.\n- `PBR_FAILURE_CAP_EXCEEDED`: the account has too many recent failed PBR runs; new submissions are temporarily blocked.\n- `EXECUTION_NOT_FOUND`: the execution or batch does not exist or does not belong to the account.\n- `EXECUTION_IN_PROGRESS`: the request conflicts with an execution that is still running.\n- `RATE_LIMITED`: the API key's rate limit was exceeded.\n- `SERVICE_UNAVAILABLE`: the requested operation is temporarily unavailable; retry later.\n- `MAINTENANCE_MODE`: the API is temporarily unavailable for maintenance.\n- `INTERNAL_SERVER_ERROR`: an unexpected server error occurred.\n- `WORKFLOW_CREATION_FAILED`: the API could not start the requested generation.\n- `WORKFLOW_API_ERROR`: generation stopped because of an unexpected error.\n","enum":["INVALID_REQUEST","MALFORMED_UUID","UNAUTHORIZED","API_KEY_MISSING","API_KEY_INVALID","API_KEY_REVOKED","PLAN_FEATURE_REQUIRED","SUBSCRIPTION_FEATURE_REQUIRED","PRICE_CHANGED","VERSION_CHANGED","IDEMPOTENCY_CONFLICT","DOWNLOAD_UNAVAILABLE","CATALOGUE_CHANGED","LISTING_NOT_FOUND","MARKETPLACE_DOWNLOAD_ONLY","INSUFFICIENT_CREDITS","QUOTA_EXCEEDED","FILE_TOO_LARGE","UPLOAD_TIMEOUT","INVALID_CONTENT_TYPE","UNSUPPORTED_ASSET_FORMAT","FORMAT_NOT_AVAILABLE","INVALID_FBX_ZIP_STRUCTURE","IMAGE_RESOLUTION_EXCEEDED","VALIDATION_FAILED","UPLOAD_EXPIRED","MESH_REQUIREMENTS_NOT_MET","COLLECTION_NOT_FOUND","PROJECT_NOT_FOUND","GRAPH_NOT_FOUND","NODE_NOT_FOUND","GROUP_NOT_FOUND","PROJECT_NODE_LIMIT_EXCEEDED","CONFLICT","ASSET_NOT_FOUND","ASSET_IN_USE","BATCH_TOO_LARGE","CONCURRENT_EXECUTION_LIMIT_EXCEEDED","PBR_FAILURE_CAP_EXCEEDED","EXECUTION_NOT_FOUND","EXECUTION_IN_PROGRESS","RATE_LIMITED","SERVICE_UNAVAILABLE","MAINTENANCE_MODE","INTERNAL_SERVER_ERROR","WORKFLOW_CREATION_FAILED","WORKFLOW_API_ERROR"]},"PlanFeatureRequiredError":{"type":"object","required":["error"],"description":"The error envelope for a missing subscription feature.","properties":{"error":{"type":"object","required":["code","message","details"],"description":"The missing-feature error body.","properties":{"code":{"type":"string","const":"PLAN_FEATURE_REQUIRED","description":"Stable error code for a missing subscription feature."},"message":{"type":"string","description":"Human-readable description of the error."},"details":{"$ref":"#/components/schemas/PlanFeatureRequiredErrorDetails"}}}}},"PlanFeatureRequiredErrorDetails":{"type":"object","required":["feature","upgrade_plan_codes"],"description":"The missing feature and the active plans that provide it.","properties":{"feature":{"$ref":"#/components/schemas/SubscriptionFeature"},"upgrade_plan_codes":{"type":"array","description":"Active plans available for purchase that provide the missing\nfeature. The array uses plan class and opaque code order.\n","items":{"$ref":"#/components/schemas/SubscriptionPlanCode"}}}},"SubscriptionFeature":{"type":"string","description":"Product capability available to the account.\n\nPossible enum values:\n- `commercial_license`: commercial-use rights.\n- `api_pbr`: PBR generation through the Public Platform API.\n- `api_asset_download`: asset downloads through the Public Platform API.\n- `custom_polycount`: custom polygon counts for 3D generation.\n- `image_edit`: image editing.\n- `multiview`: multiview generation.\n- `asset_download`: asset downloads in the Marso web app.\n- `api_access`: access to the Public Platform API.\n- `scene_generation`: scene generation and multi-asset runs in the Marso web app.\n- `application_apps`: the Sim Ready and Game Ready apps.\n","enum":["commercial_license","api_pbr","api_asset_download","custom_polycount","image_edit","multiview","asset_download","api_access","scene_generation","application_apps"]},"SubscriptionPlanCode":{"type":"string","pattern":"^plan_[A-Za-z0-9]{7,64}$","description":"Opaque and immutable code for a subscription plan. A plan display name\ncan change. The code starts with `plan_`, followed by 7 to 64 ASCII\nletters or digits.\n"}},"responses":{"Unauthorized":{"description":"The API key is missing, invalid, or revoked. Possible error codes:\n`API_KEY_MISSING`, `API_KEY_INVALID`, `API_KEY_REVOKED`, or `UNAUTHORIZED`.\n","content":{"application/json":{"schema":{"$ref":"#/components/schemas/Error"}}}},"PlanFeatureRequired":{"description":"The account does not have the plan feature required by this operation\n(`PLAN_FEATURE_REQUIRED`). The Free plan lacks `api_access`, so every\noperation refuses a Free account with this response. An account that\nlacks `api_pbr` or `api_asset_download` also gets it on the routes that\nneed those features.\n","content":{"application/json":{"schema":{"$ref":"#/components/schemas/PlanFeatureRequiredError"}}}},"RateLimited":{"description":"Rate limit exceeded (`RATE_LIMITED`). The response includes a `Retry-After`\nheader with the number of seconds to wait before retrying, plus the\n`X-RateLimit-*` headers. Those headers are also present on successful (2xx)\nresponses so a client can pace itself.\n","headers":{"Retry-After":{"description":"Seconds to wait before retrying.","schema":{"type":"integer"}},"X-RateLimit-Limit":{"description":"Request burst capacity for the API key.","schema":{"type":"integer"}},"X-RateLimit-Remaining":{"description":"Requests remaining in the current burst window.","schema":{"type":"integer"}},"X-RateLimit-Reset":{"description":"Unix epoch seconds when the burst capacity is fully restored.\n","schema":{"type":"integer"}}},"content":{"application/json":{"schema":{"$ref":"#/components/schemas/Error"}}}}}},"paths":{"/collections/{collection_id}":{"get":{"operationId":"getCollection","tags":["collections"],"summary":"Retrieve a collection","description":"Returns one collection in your account.","parameters":[{"name":"collection_id","in":"path","required":true,"description":"The collection ID.","schema":{"type":"string","format":"uuid"}}],"responses":{"200":{"description":"The requested collection data.","content":{"application/json":{"schema":{"$ref":"#/components/schemas/Collection"}}}},"400":{"description":"The request, filters, cursor, or image is invalid.","content":{"application/json":{"schema":{"$ref":"#/components/schemas/Error"}}}},"401":{"$ref":"#/components/responses/Unauthorized"},"403":{"$ref":"#/components/responses/PlanFeatureRequired"},"404":{"description":"The collection or an added asset does not exist in your account.","content":{"application/json":{"schema":{"$ref":"#/components/schemas/Error"}}}},"429":{"$ref":"#/components/responses/RateLimited"},"500":{"description":"The API could not complete the request. Retry later.","content":{"application/json":{"schema":{"$ref":"#/components/schemas/Error"}}}}}}}}}
```

## Delete a collection

> Removes the collection and its independent thumbnail. Its assets remain available.

```json
{"openapi":"3.1.0","info":{"title":"Marso Studio API","version":"0.0.1"},"tags":[{"name":"collections","description":"Manage groups of logical Library Assets and their images."}],"servers":[{"url":"https://api.marso.app/api/public/v1/","description":"Production server."}],"security":[{"apiKey":[]}],"components":{"securitySchemes":{"apiKey":{"type":"http","scheme":"bearer","description":"API key created in the Marso Studio dashboard. The value has the form\n`mxr_live_<entropy>` and is sent as a Bearer token in the `Authorization`\nheader.\n"}},"schemas":{"Error":{"type":"object","required":["error"],"description":"Canonical error envelope. The error payload is nested under the `error`\nkey.\n","properties":{"error":{"$ref":"#/components/schemas/ErrorBody"}}},"ErrorBody":{"type":"object","description":"The body of an error response. The `code` is a stable value clients can\nbranch on; the `message` is a human-readable explanation.\n","required":["code","message"],"properties":{"code":{"$ref":"#/components/schemas/ErrorCode"},"message":{"type":"string","description":"Human-readable description of the error.\n"},"details":{"type":["object","null"],"description":"Additional structured information about the error, or `null` if no\nextra details are available.\n","additionalProperties":true}}},"ErrorCode":{"type":"string","description":"Machine-readable error code. The enum contains every code that this API\ncan return.\n\nPossible enum values:\n- `INVALID_REQUEST`: the request body or a query parameter failed validation.\n- `MALFORMED_UUID`: a path parameter that should be a UUID is not one.\n- `UNAUTHORIZED`: the request could not be authenticated.\n- `API_KEY_MISSING`: no API key was supplied.\n- `API_KEY_INVALID`: the supplied API key does not match any known key.\n- `API_KEY_REVOKED`: the supplied API key has been revoked.\n- `PLAN_FEATURE_REQUIRED`: the account plan does not include a required feature.\n- `SUBSCRIPTION_FEATURE_REQUIRED`: a new Marketplace purchase requires a paid plan or assigned seat.\n- `PRICE_CHANGED`: the selected price differs from the price in the request.\n- `VERSION_CHANGED`: the selected Marketplace version differs from the requested version.\n- `IDEMPOTENCY_CONFLICT`: the same key was used for a different purchase request.\n- `DOWNLOAD_UNAVAILABLE`: the retained private content is temporarily unavailable.\n- `CATALOGUE_CHANGED`: the catalogue changed during pagination; restart the query.\n- `LISTING_NOT_FOUND`: the selected listing is absent or delisted.\n- `MARKETPLACE_DOWNLOAD_ONLY`: Marketplace content supports download and cannot enter generation.\n- `INSUFFICIENT_CREDITS`: the account does not have enough credits for this request.\n- `QUOTA_EXCEEDED`: a usage quota for the account has been exceeded.\n- `FILE_TOO_LARGE`: an uploaded or referenced file exceeds the allowed size.\n- `UPLOAD_TIMEOUT`: an image search upload exceeded 60 seconds. Try a smaller file or a faster connection.\n- `INVALID_CONTENT_TYPE`: a file's content type does not match its declared or expected type.\n- `UNSUPPORTED_ASSET_FORMAT`: a file's extension is not one of the supported asset formats.\n- `FORMAT_NOT_AVAILABLE`: the requested downloadable format does not exist for this asset.\n- `INVALID_FBX_ZIP_STRUCTURE`: a `.zip` upload is not a valid FBX bundle. The error message says why.\n- `IMAGE_RESOLUTION_EXCEEDED`: an image is larger than 4096 by 4096 pixels, or a texture in a mesh file is larger than 8192 by 8192 pixels.\n- `VALIDATION_FAILED`: the API could not check the uploaded file. Upload it again. This is the `error.code` of an upload status read. A failed batch item or run uses the same word with another meaning (see `ExecutionErrorBody`).\n- `UPLOAD_EXPIRED`: the upload did not finish within 1 hour. Upload the file again.\n- `MESH_REQUIREMENTS_NOT_MET`: the mesh file has no polygon geometry, no base-color texture, no UV coordinates, or it names a texture that the upload does not hold.\n- `COLLECTION_NOT_FOUND`: the collection does not exist in your account.\n- `PROJECT_NOT_FOUND`: the project does not exist, or another account owns it.\n- `GRAPH_NOT_FOUND`: the graph does not exist in this project.\n- `NODE_NOT_FOUND`: the node does not exist in this graph.\n- `GROUP_NOT_FOUND`: the group does not exist in this graph.\n- `PROJECT_NODE_LIMIT_EXCEEDED`: the project already holds as many nodes as it may hold.\n- `CONFLICT`: the request conflicts with the current state, so the server made no change.\n- `ASSET_NOT_FOUND`: the asset does not exist or does not belong to the account.\n- `ASSET_IN_USE`: an active execution uses a component, or another PBR execution shares a source or target component.\n- `BATCH_TOO_LARGE`: the batch contains more items than the endpoint allows.\n- `CONCURRENT_EXECUTION_LIMIT_EXCEEDED`: the account has reached its limit on simultaneous submissions.\n- `PBR_FAILURE_CAP_EXCEEDED`: the account has too many recent failed PBR runs; new submissions are temporarily blocked.\n- `EXECUTION_NOT_FOUND`: the execution or batch does not exist or does not belong to the account.\n- `EXECUTION_IN_PROGRESS`: the request conflicts with an execution that is still running.\n- `RATE_LIMITED`: the API key's rate limit was exceeded.\n- `SERVICE_UNAVAILABLE`: the requested operation is temporarily unavailable; retry later.\n- `MAINTENANCE_MODE`: the API is temporarily unavailable for maintenance.\n- `INTERNAL_SERVER_ERROR`: an unexpected server error occurred.\n- `WORKFLOW_CREATION_FAILED`: the API could not start the requested generation.\n- `WORKFLOW_API_ERROR`: generation stopped because of an unexpected error.\n","enum":["INVALID_REQUEST","MALFORMED_UUID","UNAUTHORIZED","API_KEY_MISSING","API_KEY_INVALID","API_KEY_REVOKED","PLAN_FEATURE_REQUIRED","SUBSCRIPTION_FEATURE_REQUIRED","PRICE_CHANGED","VERSION_CHANGED","IDEMPOTENCY_CONFLICT","DOWNLOAD_UNAVAILABLE","CATALOGUE_CHANGED","LISTING_NOT_FOUND","MARKETPLACE_DOWNLOAD_ONLY","INSUFFICIENT_CREDITS","QUOTA_EXCEEDED","FILE_TOO_LARGE","UPLOAD_TIMEOUT","INVALID_CONTENT_TYPE","UNSUPPORTED_ASSET_FORMAT","FORMAT_NOT_AVAILABLE","INVALID_FBX_ZIP_STRUCTURE","IMAGE_RESOLUTION_EXCEEDED","VALIDATION_FAILED","UPLOAD_EXPIRED","MESH_REQUIREMENTS_NOT_MET","COLLECTION_NOT_FOUND","PROJECT_NOT_FOUND","GRAPH_NOT_FOUND","NODE_NOT_FOUND","GROUP_NOT_FOUND","PROJECT_NODE_LIMIT_EXCEEDED","CONFLICT","ASSET_NOT_FOUND","ASSET_IN_USE","BATCH_TOO_LARGE","CONCURRENT_EXECUTION_LIMIT_EXCEEDED","PBR_FAILURE_CAP_EXCEEDED","EXECUTION_NOT_FOUND","EXECUTION_IN_PROGRESS","RATE_LIMITED","SERVICE_UNAVAILABLE","MAINTENANCE_MODE","INTERNAL_SERVER_ERROR","WORKFLOW_CREATION_FAILED","WORKFLOW_API_ERROR"]},"PlanFeatureRequiredError":{"type":"object","required":["error"],"description":"The error envelope for a missing subscription feature.","properties":{"error":{"type":"object","required":["code","message","details"],"description":"The missing-feature error body.","properties":{"code":{"type":"string","const":"PLAN_FEATURE_REQUIRED","description":"Stable error code for a missing subscription feature."},"message":{"type":"string","description":"Human-readable description of the error."},"details":{"$ref":"#/components/schemas/PlanFeatureRequiredErrorDetails"}}}}},"PlanFeatureRequiredErrorDetails":{"type":"object","required":["feature","upgrade_plan_codes"],"description":"The missing feature and the active plans that provide it.","properties":{"feature":{"$ref":"#/components/schemas/SubscriptionFeature"},"upgrade_plan_codes":{"type":"array","description":"Active plans available for purchase that provide the missing\nfeature. The array uses plan class and opaque code order.\n","items":{"$ref":"#/components/schemas/SubscriptionPlanCode"}}}},"SubscriptionFeature":{"type":"string","description":"Product capability available to the account.\n\nPossible enum values:\n- `commercial_license`: commercial-use rights.\n- `api_pbr`: PBR generation through the Public Platform API.\n- `api_asset_download`: asset downloads through the Public Platform API.\n- `custom_polycount`: custom polygon counts for 3D generation.\n- `image_edit`: image editing.\n- `multiview`: multiview generation.\n- `asset_download`: asset downloads in the Marso web app.\n- `api_access`: access to the Public Platform API.\n- `scene_generation`: scene generation and multi-asset runs in the Marso web app.\n- `application_apps`: the Sim Ready and Game Ready apps.\n","enum":["commercial_license","api_pbr","api_asset_download","custom_polycount","image_edit","multiview","asset_download","api_access","scene_generation","application_apps"]},"SubscriptionPlanCode":{"type":"string","pattern":"^plan_[A-Za-z0-9]{7,64}$","description":"Opaque and immutable code for a subscription plan. A plan display name\ncan change. The code starts with `plan_`, followed by 7 to 64 ASCII\nletters or digits.\n"}},"responses":{"Unauthorized":{"description":"The API key is missing, invalid, or revoked. Possible error codes:\n`API_KEY_MISSING`, `API_KEY_INVALID`, `API_KEY_REVOKED`, or `UNAUTHORIZED`.\n","content":{"application/json":{"schema":{"$ref":"#/components/schemas/Error"}}}},"PlanFeatureRequired":{"description":"The account does not have the plan feature required by this operation\n(`PLAN_FEATURE_REQUIRED`). The Free plan lacks `api_access`, so every\noperation refuses a Free account with this response. An account that\nlacks `api_pbr` or `api_asset_download` also gets it on the routes that\nneed those features.\n","content":{"application/json":{"schema":{"$ref":"#/components/schemas/PlanFeatureRequiredError"}}}},"RateLimited":{"description":"Rate limit exceeded (`RATE_LIMITED`). The response includes a `Retry-After`\nheader with the number of seconds to wait before retrying, plus the\n`X-RateLimit-*` headers. Those headers are also present on successful (2xx)\nresponses so a client can pace itself.\n","headers":{"Retry-After":{"description":"Seconds to wait before retrying.","schema":{"type":"integer"}},"X-RateLimit-Limit":{"description":"Request burst capacity for the API key.","schema":{"type":"integer"}},"X-RateLimit-Remaining":{"description":"Requests remaining in the current burst window.","schema":{"type":"integer"}},"X-RateLimit-Reset":{"description":"Unix epoch seconds when the burst capacity is fully restored.\n","schema":{"type":"integer"}}},"content":{"application/json":{"schema":{"$ref":"#/components/schemas/Error"}}}}}},"paths":{"/collections/{collection_id}":{"delete":{"operationId":"deleteCollection","tags":["collections"],"summary":"Delete a collection","description":"Removes the collection and its independent thumbnail. Its assets remain available.","parameters":[{"name":"collection_id","in":"path","required":true,"description":"The collection ID.","schema":{"type":"string","format":"uuid"}}],"responses":{"204":{"description":"The operation completed."},"400":{"description":"The request, filters, cursor, or image is invalid.","content":{"application/json":{"schema":{"$ref":"#/components/schemas/Error"}}}},"401":{"$ref":"#/components/responses/Unauthorized"},"403":{"$ref":"#/components/responses/PlanFeatureRequired"},"404":{"description":"The collection or an added asset does not exist in your account.","content":{"application/json":{"schema":{"$ref":"#/components/schemas/Error"}}}},"429":{"$ref":"#/components/responses/RateLimited"},"500":{"description":"The API could not complete the request. Retry later.","content":{"application/json":{"schema":{"$ref":"#/components/schemas/Error"}}}}}}}}}
```

## Update a collection

> Changes name and tags together. Omitted fields keep their value. An empty array clears the tags.

```json
{"openapi":"3.1.0","info":{"title":"Marso Studio API","version":"0.0.1"},"tags":[{"name":"collections","description":"Manage groups of logical Library Assets and their images."}],"servers":[{"url":"https://api.marso.app/api/public/v1/","description":"Production server."}],"security":[{"apiKey":[]}],"components":{"securitySchemes":{"apiKey":{"type":"http","scheme":"bearer","description":"API key created in the Marso Studio dashboard. The value has the form\n`mxr_live_<entropy>` and is sent as a Bearer token in the `Authorization`\nheader.\n"}},"schemas":{"UpdateCollectionRequest":{"type":"object","description":"The fields to change together. Supply name or tags. An empty tags array removes all tags.","properties":{"name":{"type":"string","description":"The collection name, from 1 to 100 Unicode characters.","minLength":1,"maxLength":100},"tags":{"type":"array","description":"The display tags. Each tag has 1 to 32 Unicode characters after trim. Case-insensitive duplicates return 400.","items":{"type":"string","description":"The tag text.","minLength":1,"maxLength":32},"maxItems":20}},"required":[],"additionalProperties":false,"minProperties":1},"Collection":{"type":"object","description":"A named group of logical Library Assets.","properties":{"marketplace":{"$ref":"#/components/schemas/MarketplaceCollectionInfo","description":"The source version. Absent for a studio Collection."},"collection_id":{"type":"string","description":"The collection ID.","format":"uuid"},"name":{"type":"string","description":"The collection name, from 1 to 100 Unicode characters.","minLength":1,"maxLength":100},"tags":{"type":"array","description":"The display tags. Each tag has 1 to 32 Unicode characters after trim. Case-insensitive duplicates return 400.","items":{"type":"string","description":"The tag text.","minLength":1,"maxLength":32},"maxItems":20},"creator":{"$ref":"#/components/schemas/CollectionCreator"},"asset_count":{"type":"integer","description":"The number of stored member references, including unavailable members.","minimum":0},"thumbnail_url":{"type":"string","description":"The preview URL. It travels with thumbnail_url_expires_at."},"thumbnail_url_expires_at":{"$ref":"#/components/schemas/EpochMillis"},"created_at":{"$ref":"#/components/schemas/EpochMillis"},"updated_at":{"$ref":"#/components/schemas/EpochMillis"}},"required":["collection_id","name","tags","creator","asset_count","created_at","updated_at"]},"MarketplaceCollectionInfo":{"type":"object","description":"The immutable marketplace version that created this personal Collection.","properties":{"listing_id":{"type":"string","format":"uuid","description":"The canonical marketplace listing ID."},"revision":{"type":"integer","minimum":1,"maximum":9007199254740991,"description":"The exact immutable revision, from 1 to 9007199254740991."},"source_type":{"type":"string","enum":["curated"],"description":"Possible enum values: `curated`: content from the curated marketplace."}},"required":["listing_id","revision","source_type"]},"CollectionCreator":{"type":"object","description":"The User who created the collection.","properties":{"user_id":{"type":"string","description":"The creator User ID."},"name":{"type":"string","description":"The current profile name. Absent if unavailable."}},"required":["user_id"]},"EpochMillis":{"type":"integer","format":"int64","description":"Time represented as milliseconds since the Unix epoch.\n"},"Error":{"type":"object","required":["error"],"description":"Canonical error envelope. The error payload is nested under the `error`\nkey.\n","properties":{"error":{"$ref":"#/components/schemas/ErrorBody"}}},"ErrorBody":{"type":"object","description":"The body of an error response. The `code` is a stable value clients can\nbranch on; the `message` is a human-readable explanation.\n","required":["code","message"],"properties":{"code":{"$ref":"#/components/schemas/ErrorCode"},"message":{"type":"string","description":"Human-readable description of the error.\n"},"details":{"type":["object","null"],"description":"Additional structured information about the error, or `null` if no\nextra details are available.\n","additionalProperties":true}}},"ErrorCode":{"type":"string","description":"Machine-readable error code. The enum contains every code that this API\ncan return.\n\nPossible enum values:\n- `INVALID_REQUEST`: the request body or a query parameter failed validation.\n- `MALFORMED_UUID`: a path parameter that should be a UUID is not one.\n- `UNAUTHORIZED`: the request could not be authenticated.\n- `API_KEY_MISSING`: no API key was supplied.\n- `API_KEY_INVALID`: the supplied API key does not match any known key.\n- `API_KEY_REVOKED`: the supplied API key has been revoked.\n- `PLAN_FEATURE_REQUIRED`: the account plan does not include a required feature.\n- `SUBSCRIPTION_FEATURE_REQUIRED`: a new Marketplace purchase requires a paid plan or assigned seat.\n- `PRICE_CHANGED`: the selected price differs from the price in the request.\n- `VERSION_CHANGED`: the selected Marketplace version differs from the requested version.\n- `IDEMPOTENCY_CONFLICT`: the same key was used for a different purchase request.\n- `DOWNLOAD_UNAVAILABLE`: the retained private content is temporarily unavailable.\n- `CATALOGUE_CHANGED`: the catalogue changed during pagination; restart the query.\n- `LISTING_NOT_FOUND`: the selected listing is absent or delisted.\n- `MARKETPLACE_DOWNLOAD_ONLY`: Marketplace content supports download and cannot enter generation.\n- `INSUFFICIENT_CREDITS`: the account does not have enough credits for this request.\n- `QUOTA_EXCEEDED`: a usage quota for the account has been exceeded.\n- `FILE_TOO_LARGE`: an uploaded or referenced file exceeds the allowed size.\n- `UPLOAD_TIMEOUT`: an image search upload exceeded 60 seconds. Try a smaller file or a faster connection.\n- `INVALID_CONTENT_TYPE`: a file's content type does not match its declared or expected type.\n- `UNSUPPORTED_ASSET_FORMAT`: a file's extension is not one of the supported asset formats.\n- `FORMAT_NOT_AVAILABLE`: the requested downloadable format does not exist for this asset.\n- `INVALID_FBX_ZIP_STRUCTURE`: a `.zip` upload is not a valid FBX bundle. The error message says why.\n- `IMAGE_RESOLUTION_EXCEEDED`: an image is larger than 4096 by 4096 pixels, or a texture in a mesh file is larger than 8192 by 8192 pixels.\n- `VALIDATION_FAILED`: the API could not check the uploaded file. Upload it again. This is the `error.code` of an upload status read. A failed batch item or run uses the same word with another meaning (see `ExecutionErrorBody`).\n- `UPLOAD_EXPIRED`: the upload did not finish within 1 hour. Upload the file again.\n- `MESH_REQUIREMENTS_NOT_MET`: the mesh file has no polygon geometry, no base-color texture, no UV coordinates, or it names a texture that the upload does not hold.\n- `COLLECTION_NOT_FOUND`: the collection does not exist in your account.\n- `PROJECT_NOT_FOUND`: the project does not exist, or another account owns it.\n- `GRAPH_NOT_FOUND`: the graph does not exist in this project.\n- `NODE_NOT_FOUND`: the node does not exist in this graph.\n- `GROUP_NOT_FOUND`: the group does not exist in this graph.\n- `PROJECT_NODE_LIMIT_EXCEEDED`: the project already holds as many nodes as it may hold.\n- `CONFLICT`: the request conflicts with the current state, so the server made no change.\n- `ASSET_NOT_FOUND`: the asset does not exist or does not belong to the account.\n- `ASSET_IN_USE`: an active execution uses a component, or another PBR execution shares a source or target component.\n- `BATCH_TOO_LARGE`: the batch contains more items than the endpoint allows.\n- `CONCURRENT_EXECUTION_LIMIT_EXCEEDED`: the account has reached its limit on simultaneous submissions.\n- `PBR_FAILURE_CAP_EXCEEDED`: the account has too many recent failed PBR runs; new submissions are temporarily blocked.\n- `EXECUTION_NOT_FOUND`: the execution or batch does not exist or does not belong to the account.\n- `EXECUTION_IN_PROGRESS`: the request conflicts with an execution that is still running.\n- `RATE_LIMITED`: the API key's rate limit was exceeded.\n- `SERVICE_UNAVAILABLE`: the requested operation is temporarily unavailable; retry later.\n- `MAINTENANCE_MODE`: the API is temporarily unavailable for maintenance.\n- `INTERNAL_SERVER_ERROR`: an unexpected server error occurred.\n- `WORKFLOW_CREATION_FAILED`: the API could not start the requested generation.\n- `WORKFLOW_API_ERROR`: generation stopped because of an unexpected error.\n","enum":["INVALID_REQUEST","MALFORMED_UUID","UNAUTHORIZED","API_KEY_MISSING","API_KEY_INVALID","API_KEY_REVOKED","PLAN_FEATURE_REQUIRED","SUBSCRIPTION_FEATURE_REQUIRED","PRICE_CHANGED","VERSION_CHANGED","IDEMPOTENCY_CONFLICT","DOWNLOAD_UNAVAILABLE","CATALOGUE_CHANGED","LISTING_NOT_FOUND","MARKETPLACE_DOWNLOAD_ONLY","INSUFFICIENT_CREDITS","QUOTA_EXCEEDED","FILE_TOO_LARGE","UPLOAD_TIMEOUT","INVALID_CONTENT_TYPE","UNSUPPORTED_ASSET_FORMAT","FORMAT_NOT_AVAILABLE","INVALID_FBX_ZIP_STRUCTURE","IMAGE_RESOLUTION_EXCEEDED","VALIDATION_FAILED","UPLOAD_EXPIRED","MESH_REQUIREMENTS_NOT_MET","COLLECTION_NOT_FOUND","PROJECT_NOT_FOUND","GRAPH_NOT_FOUND","NODE_NOT_FOUND","GROUP_NOT_FOUND","PROJECT_NODE_LIMIT_EXCEEDED","CONFLICT","ASSET_NOT_FOUND","ASSET_IN_USE","BATCH_TOO_LARGE","CONCURRENT_EXECUTION_LIMIT_EXCEEDED","PBR_FAILURE_CAP_EXCEEDED","EXECUTION_NOT_FOUND","EXECUTION_IN_PROGRESS","RATE_LIMITED","SERVICE_UNAVAILABLE","MAINTENANCE_MODE","INTERNAL_SERVER_ERROR","WORKFLOW_CREATION_FAILED","WORKFLOW_API_ERROR"]},"PlanFeatureRequiredError":{"type":"object","required":["error"],"description":"The error envelope for a missing subscription feature.","properties":{"error":{"type":"object","required":["code","message","details"],"description":"The missing-feature error body.","properties":{"code":{"type":"string","const":"PLAN_FEATURE_REQUIRED","description":"Stable error code for a missing subscription feature."},"message":{"type":"string","description":"Human-readable description of the error."},"details":{"$ref":"#/components/schemas/PlanFeatureRequiredErrorDetails"}}}}},"PlanFeatureRequiredErrorDetails":{"type":"object","required":["feature","upgrade_plan_codes"],"description":"The missing feature and the active plans that provide it.","properties":{"feature":{"$ref":"#/components/schemas/SubscriptionFeature"},"upgrade_plan_codes":{"type":"array","description":"Active plans available for purchase that provide the missing\nfeature. The array uses plan class and opaque code order.\n","items":{"$ref":"#/components/schemas/SubscriptionPlanCode"}}}},"SubscriptionFeature":{"type":"string","description":"Product capability available to the account.\n\nPossible enum values:\n- `commercial_license`: commercial-use rights.\n- `api_pbr`: PBR generation through the Public Platform API.\n- `api_asset_download`: asset downloads through the Public Platform API.\n- `custom_polycount`: custom polygon counts for 3D generation.\n- `image_edit`: image editing.\n- `multiview`: multiview generation.\n- `asset_download`: asset downloads in the Marso web app.\n- `api_access`: access to the Public Platform API.\n- `scene_generation`: scene generation and multi-asset runs in the Marso web app.\n- `application_apps`: the Sim Ready and Game Ready apps.\n","enum":["commercial_license","api_pbr","api_asset_download","custom_polycount","image_edit","multiview","asset_download","api_access","scene_generation","application_apps"]},"SubscriptionPlanCode":{"type":"string","pattern":"^plan_[A-Za-z0-9]{7,64}$","description":"Opaque and immutable code for a subscription plan. A plan display name\ncan change. The code starts with `plan_`, followed by 7 to 64 ASCII\nletters or digits.\n"}},"responses":{"Unauthorized":{"description":"The API key is missing, invalid, or revoked. Possible error codes:\n`API_KEY_MISSING`, `API_KEY_INVALID`, `API_KEY_REVOKED`, or `UNAUTHORIZED`.\n","content":{"application/json":{"schema":{"$ref":"#/components/schemas/Error"}}}},"PlanFeatureRequired":{"description":"The account does not have the plan feature required by this operation\n(`PLAN_FEATURE_REQUIRED`). The Free plan lacks `api_access`, so every\noperation refuses a Free account with this response. An account that\nlacks `api_pbr` or `api_asset_download` also gets it on the routes that\nneed those features.\n","content":{"application/json":{"schema":{"$ref":"#/components/schemas/PlanFeatureRequiredError"}}}},"RateLimited":{"description":"Rate limit exceeded (`RATE_LIMITED`). The response includes a `Retry-After`\nheader with the number of seconds to wait before retrying, plus the\n`X-RateLimit-*` headers. Those headers are also present on successful (2xx)\nresponses so a client can pace itself.\n","headers":{"Retry-After":{"description":"Seconds to wait before retrying.","schema":{"type":"integer"}},"X-RateLimit-Limit":{"description":"Request burst capacity for the API key.","schema":{"type":"integer"}},"X-RateLimit-Remaining":{"description":"Requests remaining in the current burst window.","schema":{"type":"integer"}},"X-RateLimit-Reset":{"description":"Unix epoch seconds when the burst capacity is fully restored.\n","schema":{"type":"integer"}}},"content":{"application/json":{"schema":{"$ref":"#/components/schemas/Error"}}}}}},"paths":{"/collections/{collection_id}":{"patch":{"operationId":"updateCollection","tags":["collections"],"summary":"Update a collection","description":"Changes name and tags together. Omitted fields keep their value. An empty array clears the tags.","parameters":[{"name":"collection_id","in":"path","required":true,"description":"The collection ID.","schema":{"type":"string","format":"uuid"}}],"requestBody":{"required":true,"description":"The request fields.","content":{"application/json":{"schema":{"$ref":"#/components/schemas/UpdateCollectionRequest"}}}},"responses":{"200":{"description":"The requested collection data.","content":{"application/json":{"schema":{"$ref":"#/components/schemas/Collection"}}}},"400":{"description":"The request, filters, cursor, or image is invalid.","content":{"application/json":{"schema":{"$ref":"#/components/schemas/Error"}}}},"401":{"$ref":"#/components/responses/Unauthorized"},"403":{"$ref":"#/components/responses/PlanFeatureRequired"},"404":{"description":"The collection or an added asset does not exist in your account.","content":{"application/json":{"schema":{"$ref":"#/components/schemas/Error"}}}},"429":{"$ref":"#/components/responses/RateLimited"},"500":{"description":"The API could not complete the request. Retry later.","content":{"application/json":{"schema":{"$ref":"#/components/schemas/Error"}}}}}}}}}
```

## List collection members

> Returns members in insertion order, with physical file IDs and project IDs. The unavailable\_library\_asset\_ids field names members that cannot resolve.

```json
{"openapi":"3.1.0","info":{"title":"Marso Studio API","version":"0.0.1"},"tags":[{"name":"collections","description":"Manage groups of logical Library Assets and their images."}],"servers":[{"url":"https://api.marso.app/api/public/v1/","description":"Production server."}],"security":[{"apiKey":[]}],"components":{"securitySchemes":{"apiKey":{"type":"http","scheme":"bearer","description":"API key created in the Marso Studio dashboard. The value has the form\n`mxr_live_<entropy>` and is sent as a Bearer token in the `Authorization`\nheader.\n"}},"schemas":{"CollectionMemberList":{"type":"object","description":"An insertion-ordered member page. Continue while has_more is true, including after an empty data array.","properties":{"data":{"type":"array","description":"The live logical members.","items":{"$ref":"#/components/schemas/CollectionMember"}},"pagination":{"$ref":"#/components/schemas/PublicPagination"},"unavailable_library_asset_ids":{"type":"array","description":"The references that this page cannot resolve.","items":{"type":"string","description":"The logical Library Asset ID.","format":"uuid"}}},"required":["data","pagination","unavailable_library_asset_ids"]},"CollectionMember":{"description":"A member and the physical file references a download client needs.","allOf":[{"$ref":"#/components/schemas/LibraryAsset"},{"type":"object","description":"The file components and storage status.","properties":{"component_asset_ids":{"type":"object","description":"IDs of physical assets, keyed by component role. Empty if no components exist.","additionalProperties":{"type":"string"}},"storage_state":{"type":"string","description":"The file storage status. Possible enum values: AVAILABLE means files are available; BLOB_DELETED means files are absent; DOC_DELETED means the logical row is unavailable.","enum":["AVAILABLE","BLOB_DELETED","DOC_DELETED"]}},"required":["component_asset_ids","storage_state"]}]},"LibraryAsset":{"type":"object","required":["library_asset_id","primary_asset_id","kind","project_ids","has_pbr","created_at"],"description":"One row of the asset library.\n\n`library_asset_id` and `primary_asset_id` name two different objects, so\nthis is not one object with two identifiers. The first names the\ncatalogue row, and the second names the file behind it. Download the file\nwith `GET /assets/{primary_asset_id}`.\n","properties":{"marketplace":{"$ref":"#/components/schemas/MarketplaceLibraryInfo","description":"The retained marketplace metadata. Absent for a studio asset."},"library_asset_id":{"type":"string","description":"Unique identifier of the catalogue row."},"primary_asset_id":{"type":"string","description":"The file behind the row. Download it with\n`GET /assets/{primary_asset_id}`.\n"},"kind":{"type":"string","enum":["MESH","IMAGE","PBR_MATERIAL","MULTIVIEW_SET","GENERATED_3D"],"description":"What the asset is.\n\nPossible enum values:\n`MESH`: an uploaded 3D mesh.\n`IMAGE`: a single image.\n`PBR_MATERIAL`: a generated PBR material.\n`MULTIVIEW_SET`: a set of images of one object.\n`GENERATED_3D`: a mesh a model generated.\n"},"name":{"type":"string","description":"A readable label for the asset. Absent when the row carries none.\n"},"project_ids":{"type":"array","description":"The projects the asset belongs to. Never null, and empty when the\nasset belongs to no project.\n","items":{"type":"string","format":"uuid"}},"has_pbr":{"type":"boolean","description":"Whether a PBR material exists for this 3D asset."},"generation_3d_model":{"type":"string","description":"The model version that produced this asset. Absent for an asset no\nmodel produced.\n"},"thumbnail_url":{"type":"string","description":"Presigned URL of a preview image. Absent when the row has no preview.\nIt travels with `thumbnail_url_expires_at`.\n"},"thumbnail_url_expires_at":{"$ref":"#/components/schemas/NullableEpochMillis"},"created_at":{"$ref":"#/components/schemas/EpochMillis"}}},"MarketplaceLibraryInfo":{"type":"object","description":"The immutable provenance, metadata, and public previews of a purchased Asset.","properties":{"listing_id":{"type":"string","format":"uuid","description":"The canonical marketplace listing ID."},"revision":{"type":"integer","minimum":1,"maximum":9007199254740991,"description":"The exact immutable revision, from 1 to 9007199254740991."},"source_type":{"type":"string","enum":["curated"],"description":"Possible enum values: `curated`: content from the curated marketplace."},"publisher":{"$ref":"#/components/schemas/MarketplacePublisher","description":"The publisher of this retained version."},"metadata":{"$ref":"#/components/schemas/MarketplaceAssetMetadata","description":"The metadata of this retained version."},"previews":{"$ref":"#/components/schemas/MarketplacePreviews","description":"The public previews of this retained version."},"license":{"$ref":"#/components/schemas/MarketplaceLicense","description":"The retained license. Absent when the version has no license."}},"required":["listing_id","revision","source_type","publisher","metadata","previews"]},"MarketplacePublisher":{"type":"object","additionalProperties":false,"properties":{"id":{"type":"string","description":"The identifier assigned by the producer."},"name":{"type":"string","description":"The name shown to visitors."}},"required":["id","name"],"description":"Curated marketplace publisher."},"MarketplaceAssetMetadata":{"type":"object","additionalProperties":false,"properties":{"display_name":{"type":"string","description":"The asset name shown to visitors."},"description_short":{"type":"string","description":"The short producer description."},"description_long":{"type":"string","description":"The full producer description."},"category":{"type":"string","description":"The primary category assigned by the producer."},"subcategory":{"type":"string","description":"The secondary category assigned by the producer."},"search_aliases":{"type":"array","items":{"type":"string","description":"One value supplied by the producer."},"description":"Alternative names supplied for search."},"tags":{"type":"array","items":{"type":"string","description":"One value supplied by the producer."},"description":"The descriptive tags supplied by the producer."},"materials":{"type":"array","items":{"type":"string","description":"One value supplied by the producer."},"description":"The materials identified by the producer."},"makers":{"$ref":"#/components/schemas/MarketplaceMakers","description":"The producer credits for model, physics, and textures."},"moving_parts_count":{"type":"integer","description":"The number of moving parts."},"articulation_types":{"type":"array","items":{"type":"string","description":"One value supplied by the producer."},"description":"The types of joint movement supplied by the producer."},"vertices_count":{"type":"integer","description":"The number of mesh vertices."},"polygon_count":{"type":"integer","description":"The number of mesh polygons."},"file_size_bytes":{"type":"integer","description":"The size of the retained USDZ in bytes."},"est_height_meters":{"anyOf":[{"type":"number"},{"type":"null"}],"description":"The estimated height in meters, or null when unknown."},"est_width_meters":{"anyOf":[{"type":"number"},{"type":"null"}],"description":"The estimated width in meters, or null when unknown."},"est_depth_meters":{"anyOf":[{"type":"number"},{"type":"null"}],"description":"The estimated depth in meters, or null when unknown."},"semantic_scale":{"type":"string","description":"The scale description supplied by the producer."}},"required":["display_name","description_short","description_long","category","subcategory","search_aliases","tags","materials","makers","moving_parts_count","articulation_types","vertices_count","polygon_count","file_size_bytes","est_height_meters","est_width_meters","est_depth_meters","semantic_scale"],"description":"Curated marketplace asset metadata."},"MarketplaceMakers":{"type":"object","additionalProperties":false,"properties":{"model_maker":{"type":"string","description":"The person or team who created the model."},"physics_maker":{"type":"string","description":"The person or team who prepared its physics."},"physics_checker":{"type":"string","description":"The person or team who checked its physics."},"texturing":{"type":"string","description":"The person or team who created its textures."}},"required":["model_maker","physics_maker","physics_checker","texturing"],"description":"Curated marketplace makers."},"MarketplacePreviews":{"type":"object","additionalProperties":false,"properties":{"primary_image":{"$ref":"#/components/schemas/MarketplaceMedia","description":"The main public preview image."},"multiview":{"type":"array","items":{"$ref":"#/components/schemas/MarketplaceView"},"description":"The public images for the canonical camera angles."},"banner":{"$ref":"#/components/schemas/MarketplaceMedia","description":"The public banner image."},"physics_video":{"$ref":"#/components/schemas/MarketplaceMedia","description":"The public video that demonstrates physics."},"qc_report":{"$ref":"#/components/schemas/MarketplaceMedia","description":"The public report of quality checks."},"data_sheet":{"$ref":"#/components/schemas/MarketplaceMedia","description":"The public document that describes this asset version."}},"required":["primary_image","multiview","banner","physics_video","qc_report","data_sheet"],"description":"Curated marketplace previews."},"MarketplaceMedia":{"type":"object","additionalProperties":false,"properties":{"url":{"type":"string","description":"A preview URL that can expire. Read the current listing again to refresh a signed URL."},"content_type":{"type":"string","description":"The media type of the file."},"size_bytes":{"type":"integer","description":"The size of the file in bytes."}},"required":["url","content_type","size_bytes"],"description":"Curated marketplace media."},"MarketplaceView":{"type":"object","additionalProperties":false,"properties":{"label":{"type":"string","enum":["three-quarter","front","right","back","left","top"],"description":"The canonical camera angle: three-quarter, front, right, back, left, or top."},"media":{"$ref":"#/components/schemas/MarketplaceMedia","description":"The public image for this camera angle."}},"required":["label","media"],"description":"Curated marketplace view."},"MarketplaceLicense":{"type":"object","additionalProperties":false,"properties":{"id":{"type":"string","description":"The identifier assigned by the producer."},"version":{"type":"string","description":"The version assigned by the producer."},"name":{"type":"string","description":"The name shown to visitors."},"document":{"$ref":"#/components/schemas/MarketplaceMedia","description":"The public document supplied by the producer."}},"required":["id","version","name","document"],"description":"Curated marketplace license."},"NullableEpochMillis":{"type":["integer","null"],"format":"int64","description":"Time represented as milliseconds since the Unix epoch, or `null` when the\nfield has not been set.\n"},"EpochMillis":{"type":"integer","format":"int64","description":"Time represented as milliseconds since the Unix epoch.\n"},"PublicPagination":{"type":"object","required":["has_more"],"description":"Cursor pagination envelope.\n","properties":{"next_cursor":{"type":"string","description":"Opaque cursor for the next page. Absent when the result set is\nexhausted. Echo it back verbatim as `cursor`.\n"},"has_more":{"type":"boolean","description":"Whether another page follows. Always agrees with the presence of\n`next_cursor`.\n"}}},"Error":{"type":"object","required":["error"],"description":"Canonical error envelope. The error payload is nested under the `error`\nkey.\n","properties":{"error":{"$ref":"#/components/schemas/ErrorBody"}}},"ErrorBody":{"type":"object","description":"The body of an error response. The `code` is a stable value clients can\nbranch on; the `message` is a human-readable explanation.\n","required":["code","message"],"properties":{"code":{"$ref":"#/components/schemas/ErrorCode"},"message":{"type":"string","description":"Human-readable description of the error.\n"},"details":{"type":["object","null"],"description":"Additional structured information about the error, or `null` if no\nextra details are available.\n","additionalProperties":true}}},"ErrorCode":{"type":"string","description":"Machine-readable error code. The enum contains every code that this API\ncan return.\n\nPossible enum values:\n- `INVALID_REQUEST`: the request body or a query parameter failed validation.\n- `MALFORMED_UUID`: a path parameter that should be a UUID is not one.\n- `UNAUTHORIZED`: the request could not be authenticated.\n- `API_KEY_MISSING`: no API key was supplied.\n- `API_KEY_INVALID`: the supplied API key does not match any known key.\n- `API_KEY_REVOKED`: the supplied API key has been revoked.\n- `PLAN_FEATURE_REQUIRED`: the account plan does not include a required feature.\n- `SUBSCRIPTION_FEATURE_REQUIRED`: a new Marketplace purchase requires a paid plan or assigned seat.\n- `PRICE_CHANGED`: the selected price differs from the price in the request.\n- `VERSION_CHANGED`: the selected Marketplace version differs from the requested version.\n- `IDEMPOTENCY_CONFLICT`: the same key was used for a different purchase request.\n- `DOWNLOAD_UNAVAILABLE`: the retained private content is temporarily unavailable.\n- `CATALOGUE_CHANGED`: the catalogue changed during pagination; restart the query.\n- `LISTING_NOT_FOUND`: the selected listing is absent or delisted.\n- `MARKETPLACE_DOWNLOAD_ONLY`: Marketplace content supports download and cannot enter generation.\n- `INSUFFICIENT_CREDITS`: the account does not have enough credits for this request.\n- `QUOTA_EXCEEDED`: a usage quota for the account has been exceeded.\n- `FILE_TOO_LARGE`: an uploaded or referenced file exceeds the allowed size.\n- `UPLOAD_TIMEOUT`: an image search upload exceeded 60 seconds. Try a smaller file or a faster connection.\n- `INVALID_CONTENT_TYPE`: a file's content type does not match its declared or expected type.\n- `UNSUPPORTED_ASSET_FORMAT`: a file's extension is not one of the supported asset formats.\n- `FORMAT_NOT_AVAILABLE`: the requested downloadable format does not exist for this asset.\n- `INVALID_FBX_ZIP_STRUCTURE`: a `.zip` upload is not a valid FBX bundle. The error message says why.\n- `IMAGE_RESOLUTION_EXCEEDED`: an image is larger than 4096 by 4096 pixels, or a texture in a mesh file is larger than 8192 by 8192 pixels.\n- `VALIDATION_FAILED`: the API could not check the uploaded file. Upload it again. This is the `error.code` of an upload status read. A failed batch item or run uses the same word with another meaning (see `ExecutionErrorBody`).\n- `UPLOAD_EXPIRED`: the upload did not finish within 1 hour. Upload the file again.\n- `MESH_REQUIREMENTS_NOT_MET`: the mesh file has no polygon geometry, no base-color texture, no UV coordinates, or it names a texture that the upload does not hold.\n- `COLLECTION_NOT_FOUND`: the collection does not exist in your account.\n- `PROJECT_NOT_FOUND`: the project does not exist, or another account owns it.\n- `GRAPH_NOT_FOUND`: the graph does not exist in this project.\n- `NODE_NOT_FOUND`: the node does not exist in this graph.\n- `GROUP_NOT_FOUND`: the group does not exist in this graph.\n- `PROJECT_NODE_LIMIT_EXCEEDED`: the project already holds as many nodes as it may hold.\n- `CONFLICT`: the request conflicts with the current state, so the server made no change.\n- `ASSET_NOT_FOUND`: the asset does not exist or does not belong to the account.\n- `ASSET_IN_USE`: an active execution uses a component, or another PBR execution shares a source or target component.\n- `BATCH_TOO_LARGE`: the batch contains more items than the endpoint allows.\n- `CONCURRENT_EXECUTION_LIMIT_EXCEEDED`: the account has reached its limit on simultaneous submissions.\n- `PBR_FAILURE_CAP_EXCEEDED`: the account has too many recent failed PBR runs; new submissions are temporarily blocked.\n- `EXECUTION_NOT_FOUND`: the execution or batch does not exist or does not belong to the account.\n- `EXECUTION_IN_PROGRESS`: the request conflicts with an execution that is still running.\n- `RATE_LIMITED`: the API key's rate limit was exceeded.\n- `SERVICE_UNAVAILABLE`: the requested operation is temporarily unavailable; retry later.\n- `MAINTENANCE_MODE`: the API is temporarily unavailable for maintenance.\n- `INTERNAL_SERVER_ERROR`: an unexpected server error occurred.\n- `WORKFLOW_CREATION_FAILED`: the API could not start the requested generation.\n- `WORKFLOW_API_ERROR`: generation stopped because of an unexpected error.\n","enum":["INVALID_REQUEST","MALFORMED_UUID","UNAUTHORIZED","API_KEY_MISSING","API_KEY_INVALID","API_KEY_REVOKED","PLAN_FEATURE_REQUIRED","SUBSCRIPTION_FEATURE_REQUIRED","PRICE_CHANGED","VERSION_CHANGED","IDEMPOTENCY_CONFLICT","DOWNLOAD_UNAVAILABLE","CATALOGUE_CHANGED","LISTING_NOT_FOUND","MARKETPLACE_DOWNLOAD_ONLY","INSUFFICIENT_CREDITS","QUOTA_EXCEEDED","FILE_TOO_LARGE","UPLOAD_TIMEOUT","INVALID_CONTENT_TYPE","UNSUPPORTED_ASSET_FORMAT","FORMAT_NOT_AVAILABLE","INVALID_FBX_ZIP_STRUCTURE","IMAGE_RESOLUTION_EXCEEDED","VALIDATION_FAILED","UPLOAD_EXPIRED","MESH_REQUIREMENTS_NOT_MET","COLLECTION_NOT_FOUND","PROJECT_NOT_FOUND","GRAPH_NOT_FOUND","NODE_NOT_FOUND","GROUP_NOT_FOUND","PROJECT_NODE_LIMIT_EXCEEDED","CONFLICT","ASSET_NOT_FOUND","ASSET_IN_USE","BATCH_TOO_LARGE","CONCURRENT_EXECUTION_LIMIT_EXCEEDED","PBR_FAILURE_CAP_EXCEEDED","EXECUTION_NOT_FOUND","EXECUTION_IN_PROGRESS","RATE_LIMITED","SERVICE_UNAVAILABLE","MAINTENANCE_MODE","INTERNAL_SERVER_ERROR","WORKFLOW_CREATION_FAILED","WORKFLOW_API_ERROR"]},"PlanFeatureRequiredError":{"type":"object","required":["error"],"description":"The error envelope for a missing subscription feature.","properties":{"error":{"type":"object","required":["code","message","details"],"description":"The missing-feature error body.","properties":{"code":{"type":"string","const":"PLAN_FEATURE_REQUIRED","description":"Stable error code for a missing subscription feature."},"message":{"type":"string","description":"Human-readable description of the error."},"details":{"$ref":"#/components/schemas/PlanFeatureRequiredErrorDetails"}}}}},"PlanFeatureRequiredErrorDetails":{"type":"object","required":["feature","upgrade_plan_codes"],"description":"The missing feature and the active plans that provide it.","properties":{"feature":{"$ref":"#/components/schemas/SubscriptionFeature"},"upgrade_plan_codes":{"type":"array","description":"Active plans available for purchase that provide the missing\nfeature. The array uses plan class and opaque code order.\n","items":{"$ref":"#/components/schemas/SubscriptionPlanCode"}}}},"SubscriptionFeature":{"type":"string","description":"Product capability available to the account.\n\nPossible enum values:\n- `commercial_license`: commercial-use rights.\n- `api_pbr`: PBR generation through the Public Platform API.\n- `api_asset_download`: asset downloads through the Public Platform API.\n- `custom_polycount`: custom polygon counts for 3D generation.\n- `image_edit`: image editing.\n- `multiview`: multiview generation.\n- `asset_download`: asset downloads in the Marso web app.\n- `api_access`: access to the Public Platform API.\n- `scene_generation`: scene generation and multi-asset runs in the Marso web app.\n- `application_apps`: the Sim Ready and Game Ready apps.\n","enum":["commercial_license","api_pbr","api_asset_download","custom_polycount","image_edit","multiview","asset_download","api_access","scene_generation","application_apps"]},"SubscriptionPlanCode":{"type":"string","pattern":"^plan_[A-Za-z0-9]{7,64}$","description":"Opaque and immutable code for a subscription plan. A plan display name\ncan change. The code starts with `plan_`, followed by 7 to 64 ASCII\nletters or digits.\n"}},"responses":{"Unauthorized":{"description":"The API key is missing, invalid, or revoked. Possible error codes:\n`API_KEY_MISSING`, `API_KEY_INVALID`, `API_KEY_REVOKED`, or `UNAUTHORIZED`.\n","content":{"application/json":{"schema":{"$ref":"#/components/schemas/Error"}}}},"PlanFeatureRequired":{"description":"The account does not have the plan feature required by this operation\n(`PLAN_FEATURE_REQUIRED`). The Free plan lacks `api_access`, so every\noperation refuses a Free account with this response. An account that\nlacks `api_pbr` or `api_asset_download` also gets it on the routes that\nneed those features.\n","content":{"application/json":{"schema":{"$ref":"#/components/schemas/PlanFeatureRequiredError"}}}},"RateLimited":{"description":"Rate limit exceeded (`RATE_LIMITED`). The response includes a `Retry-After`\nheader with the number of seconds to wait before retrying, plus the\n`X-RateLimit-*` headers. Those headers are also present on successful (2xx)\nresponses so a client can pace itself.\n","headers":{"Retry-After":{"description":"Seconds to wait before retrying.","schema":{"type":"integer"}},"X-RateLimit-Limit":{"description":"Request burst capacity for the API key.","schema":{"type":"integer"}},"X-RateLimit-Remaining":{"description":"Requests remaining in the current burst window.","schema":{"type":"integer"}},"X-RateLimit-Reset":{"description":"Unix epoch seconds when the burst capacity is fully restored.\n","schema":{"type":"integer"}}},"content":{"application/json":{"schema":{"$ref":"#/components/schemas/Error"}}}}}},"paths":{"/collections/{collection_id}/assets":{"get":{"operationId":"listCollectionAssets","tags":["collections"],"summary":"List collection members","description":"Returns members in insertion order, with physical file IDs and project IDs. The unavailable_library_asset_ids field names members that cannot resolve.","parameters":[{"name":"collection_id","in":"path","required":true,"description":"The collection ID.","schema":{"type":"string","format":"uuid"}},{"name":"limit","in":"query","required":false,"description":"The page size. Defaults to 50; the API reduces values above 100 to 100.","schema":{"type":"integer","minimum":1,"default":50}},{"name":"cursor","in":"query","required":false,"description":"The opaque continuation token. Keep the same filters and sort order.","schema":{"type":"string"}}],"responses":{"200":{"description":"The requested collection data.","content":{"application/json":{"schema":{"$ref":"#/components/schemas/CollectionMemberList"}}}},"400":{"description":"The request, filters, cursor, or image is invalid.","content":{"application/json":{"schema":{"$ref":"#/components/schemas/Error"}}}},"401":{"$ref":"#/components/responses/Unauthorized"},"403":{"$ref":"#/components/responses/PlanFeatureRequired"},"404":{"description":"The collection or an added asset does not exist in your account.","content":{"application/json":{"schema":{"$ref":"#/components/schemas/Error"}}}},"429":{"$ref":"#/components/responses/RateLimited"},"500":{"description":"The API could not complete the request. Retry later.","content":{"application/json":{"schema":{"$ref":"#/components/schemas/Error"}}}}}}}}}
```

## Add collection members

> Adds distinct live assets from your account. The response reports committed additions and already-present IDs. A collection can hold 10000 members.

```json
{"openapi":"3.1.0","info":{"title":"Marso Studio API","version":"0.0.1"},"tags":[{"name":"collections","description":"Manage groups of logical Library Assets and their images."}],"servers":[{"url":"https://api.marso.app/api/public/v1/","description":"Production server."}],"security":[{"apiKey":[]}],"components":{"securitySchemes":{"apiKey":{"type":"http","scheme":"bearer","description":"API key created in the Marso Studio dashboard. The value has the form\n`mxr_live_<entropy>` and is sent as a Bearer token in the `Authorization`\nheader.\n"}},"schemas":{"CollectionAssetsRequest":{"type":"object","description":"The member IDs to add or inspect.","properties":{"library_asset_ids":{"type":"array","description":"The IDs of Library Assets, from 1 to 100 per request.","items":{"type":"string","description":"The logical Library Asset ID.","format":"uuid"},"minItems":1,"maxItems":100}},"required":["library_asset_ids"],"additionalProperties":false},"CollectionAddResult":{"type":"object","description":"The collection and committed member counts.","properties":{"collection":{"$ref":"#/components/schemas/Collection"},"added_count":{"type":"integer","minimum":0,"description":"The number of distinct IDs added."},"skipped_count":{"type":"integer","minimum":0,"description":"The number of distinct IDs already present."}},"required":["collection","added_count","skipped_count"]},"Collection":{"type":"object","description":"A named group of logical Library Assets.","properties":{"marketplace":{"$ref":"#/components/schemas/MarketplaceCollectionInfo","description":"The source version. Absent for a studio Collection."},"collection_id":{"type":"string","description":"The collection ID.","format":"uuid"},"name":{"type":"string","description":"The collection name, from 1 to 100 Unicode characters.","minLength":1,"maxLength":100},"tags":{"type":"array","description":"The display tags. Each tag has 1 to 32 Unicode characters after trim. Case-insensitive duplicates return 400.","items":{"type":"string","description":"The tag text.","minLength":1,"maxLength":32},"maxItems":20},"creator":{"$ref":"#/components/schemas/CollectionCreator"},"asset_count":{"type":"integer","description":"The number of stored member references, including unavailable members.","minimum":0},"thumbnail_url":{"type":"string","description":"The preview URL. It travels with thumbnail_url_expires_at."},"thumbnail_url_expires_at":{"$ref":"#/components/schemas/EpochMillis"},"created_at":{"$ref":"#/components/schemas/EpochMillis"},"updated_at":{"$ref":"#/components/schemas/EpochMillis"}},"required":["collection_id","name","tags","creator","asset_count","created_at","updated_at"]},"MarketplaceCollectionInfo":{"type":"object","description":"The immutable marketplace version that created this personal Collection.","properties":{"listing_id":{"type":"string","format":"uuid","description":"The canonical marketplace listing ID."},"revision":{"type":"integer","minimum":1,"maximum":9007199254740991,"description":"The exact immutable revision, from 1 to 9007199254740991."},"source_type":{"type":"string","enum":["curated"],"description":"Possible enum values: `curated`: content from the curated marketplace."}},"required":["listing_id","revision","source_type"]},"CollectionCreator":{"type":"object","description":"The User who created the collection.","properties":{"user_id":{"type":"string","description":"The creator User ID."},"name":{"type":"string","description":"The current profile name. Absent if unavailable."}},"required":["user_id"]},"EpochMillis":{"type":"integer","format":"int64","description":"Time represented as milliseconds since the Unix epoch.\n"},"Error":{"type":"object","required":["error"],"description":"Canonical error envelope. The error payload is nested under the `error`\nkey.\n","properties":{"error":{"$ref":"#/components/schemas/ErrorBody"}}},"ErrorBody":{"type":"object","description":"The body of an error response. The `code` is a stable value clients can\nbranch on; the `message` is a human-readable explanation.\n","required":["code","message"],"properties":{"code":{"$ref":"#/components/schemas/ErrorCode"},"message":{"type":"string","description":"Human-readable description of the error.\n"},"details":{"type":["object","null"],"description":"Additional structured information about the error, or `null` if no\nextra details are available.\n","additionalProperties":true}}},"ErrorCode":{"type":"string","description":"Machine-readable error code. The enum contains every code that this API\ncan return.\n\nPossible enum values:\n- `INVALID_REQUEST`: the request body or a query parameter failed validation.\n- `MALFORMED_UUID`: a path parameter that should be a UUID is not one.\n- `UNAUTHORIZED`: the request could not be authenticated.\n- `API_KEY_MISSING`: no API key was supplied.\n- `API_KEY_INVALID`: the supplied API key does not match any known key.\n- `API_KEY_REVOKED`: the supplied API key has been revoked.\n- `PLAN_FEATURE_REQUIRED`: the account plan does not include a required feature.\n- `SUBSCRIPTION_FEATURE_REQUIRED`: a new Marketplace purchase requires a paid plan or assigned seat.\n- `PRICE_CHANGED`: the selected price differs from the price in the request.\n- `VERSION_CHANGED`: the selected Marketplace version differs from the requested version.\n- `IDEMPOTENCY_CONFLICT`: the same key was used for a different purchase request.\n- `DOWNLOAD_UNAVAILABLE`: the retained private content is temporarily unavailable.\n- `CATALOGUE_CHANGED`: the catalogue changed during pagination; restart the query.\n- `LISTING_NOT_FOUND`: the selected listing is absent or delisted.\n- `MARKETPLACE_DOWNLOAD_ONLY`: Marketplace content supports download and cannot enter generation.\n- `INSUFFICIENT_CREDITS`: the account does not have enough credits for this request.\n- `QUOTA_EXCEEDED`: a usage quota for the account has been exceeded.\n- `FILE_TOO_LARGE`: an uploaded or referenced file exceeds the allowed size.\n- `UPLOAD_TIMEOUT`: an image search upload exceeded 60 seconds. Try a smaller file or a faster connection.\n- `INVALID_CONTENT_TYPE`: a file's content type does not match its declared or expected type.\n- `UNSUPPORTED_ASSET_FORMAT`: a file's extension is not one of the supported asset formats.\n- `FORMAT_NOT_AVAILABLE`: the requested downloadable format does not exist for this asset.\n- `INVALID_FBX_ZIP_STRUCTURE`: a `.zip` upload is not a valid FBX bundle. The error message says why.\n- `IMAGE_RESOLUTION_EXCEEDED`: an image is larger than 4096 by 4096 pixels, or a texture in a mesh file is larger than 8192 by 8192 pixels.\n- `VALIDATION_FAILED`: the API could not check the uploaded file. Upload it again. This is the `error.code` of an upload status read. A failed batch item or run uses the same word with another meaning (see `ExecutionErrorBody`).\n- `UPLOAD_EXPIRED`: the upload did not finish within 1 hour. Upload the file again.\n- `MESH_REQUIREMENTS_NOT_MET`: the mesh file has no polygon geometry, no base-color texture, no UV coordinates, or it names a texture that the upload does not hold.\n- `COLLECTION_NOT_FOUND`: the collection does not exist in your account.\n- `PROJECT_NOT_FOUND`: the project does not exist, or another account owns it.\n- `GRAPH_NOT_FOUND`: the graph does not exist in this project.\n- `NODE_NOT_FOUND`: the node does not exist in this graph.\n- `GROUP_NOT_FOUND`: the group does not exist in this graph.\n- `PROJECT_NODE_LIMIT_EXCEEDED`: the project already holds as many nodes as it may hold.\n- `CONFLICT`: the request conflicts with the current state, so the server made no change.\n- `ASSET_NOT_FOUND`: the asset does not exist or does not belong to the account.\n- `ASSET_IN_USE`: an active execution uses a component, or another PBR execution shares a source or target component.\n- `BATCH_TOO_LARGE`: the batch contains more items than the endpoint allows.\n- `CONCURRENT_EXECUTION_LIMIT_EXCEEDED`: the account has reached its limit on simultaneous submissions.\n- `PBR_FAILURE_CAP_EXCEEDED`: the account has too many recent failed PBR runs; new submissions are temporarily blocked.\n- `EXECUTION_NOT_FOUND`: the execution or batch does not exist or does not belong to the account.\n- `EXECUTION_IN_PROGRESS`: the request conflicts with an execution that is still running.\n- `RATE_LIMITED`: the API key's rate limit was exceeded.\n- `SERVICE_UNAVAILABLE`: the requested operation is temporarily unavailable; retry later.\n- `MAINTENANCE_MODE`: the API is temporarily unavailable for maintenance.\n- `INTERNAL_SERVER_ERROR`: an unexpected server error occurred.\n- `WORKFLOW_CREATION_FAILED`: the API could not start the requested generation.\n- `WORKFLOW_API_ERROR`: generation stopped because of an unexpected error.\n","enum":["INVALID_REQUEST","MALFORMED_UUID","UNAUTHORIZED","API_KEY_MISSING","API_KEY_INVALID","API_KEY_REVOKED","PLAN_FEATURE_REQUIRED","SUBSCRIPTION_FEATURE_REQUIRED","PRICE_CHANGED","VERSION_CHANGED","IDEMPOTENCY_CONFLICT","DOWNLOAD_UNAVAILABLE","CATALOGUE_CHANGED","LISTING_NOT_FOUND","MARKETPLACE_DOWNLOAD_ONLY","INSUFFICIENT_CREDITS","QUOTA_EXCEEDED","FILE_TOO_LARGE","UPLOAD_TIMEOUT","INVALID_CONTENT_TYPE","UNSUPPORTED_ASSET_FORMAT","FORMAT_NOT_AVAILABLE","INVALID_FBX_ZIP_STRUCTURE","IMAGE_RESOLUTION_EXCEEDED","VALIDATION_FAILED","UPLOAD_EXPIRED","MESH_REQUIREMENTS_NOT_MET","COLLECTION_NOT_FOUND","PROJECT_NOT_FOUND","GRAPH_NOT_FOUND","NODE_NOT_FOUND","GROUP_NOT_FOUND","PROJECT_NODE_LIMIT_EXCEEDED","CONFLICT","ASSET_NOT_FOUND","ASSET_IN_USE","BATCH_TOO_LARGE","CONCURRENT_EXECUTION_LIMIT_EXCEEDED","PBR_FAILURE_CAP_EXCEEDED","EXECUTION_NOT_FOUND","EXECUTION_IN_PROGRESS","RATE_LIMITED","SERVICE_UNAVAILABLE","MAINTENANCE_MODE","INTERNAL_SERVER_ERROR","WORKFLOW_CREATION_FAILED","WORKFLOW_API_ERROR"]},"PlanFeatureRequiredError":{"type":"object","required":["error"],"description":"The error envelope for a missing subscription feature.","properties":{"error":{"type":"object","required":["code","message","details"],"description":"The missing-feature error body.","properties":{"code":{"type":"string","const":"PLAN_FEATURE_REQUIRED","description":"Stable error code for a missing subscription feature."},"message":{"type":"string","description":"Human-readable description of the error."},"details":{"$ref":"#/components/schemas/PlanFeatureRequiredErrorDetails"}}}}},"PlanFeatureRequiredErrorDetails":{"type":"object","required":["feature","upgrade_plan_codes"],"description":"The missing feature and the active plans that provide it.","properties":{"feature":{"$ref":"#/components/schemas/SubscriptionFeature"},"upgrade_plan_codes":{"type":"array","description":"Active plans available for purchase that provide the missing\nfeature. The array uses plan class and opaque code order.\n","items":{"$ref":"#/components/schemas/SubscriptionPlanCode"}}}},"SubscriptionFeature":{"type":"string","description":"Product capability available to the account.\n\nPossible enum values:\n- `commercial_license`: commercial-use rights.\n- `api_pbr`: PBR generation through the Public Platform API.\n- `api_asset_download`: asset downloads through the Public Platform API.\n- `custom_polycount`: custom polygon counts for 3D generation.\n- `image_edit`: image editing.\n- `multiview`: multiview generation.\n- `asset_download`: asset downloads in the Marso web app.\n- `api_access`: access to the Public Platform API.\n- `scene_generation`: scene generation and multi-asset runs in the Marso web app.\n- `application_apps`: the Sim Ready and Game Ready apps.\n","enum":["commercial_license","api_pbr","api_asset_download","custom_polycount","image_edit","multiview","asset_download","api_access","scene_generation","application_apps"]},"SubscriptionPlanCode":{"type":"string","pattern":"^plan_[A-Za-z0-9]{7,64}$","description":"Opaque and immutable code for a subscription plan. A plan display name\ncan change. The code starts with `plan_`, followed by 7 to 64 ASCII\nletters or digits.\n"}},"responses":{"Unauthorized":{"description":"The API key is missing, invalid, or revoked. Possible error codes:\n`API_KEY_MISSING`, `API_KEY_INVALID`, `API_KEY_REVOKED`, or `UNAUTHORIZED`.\n","content":{"application/json":{"schema":{"$ref":"#/components/schemas/Error"}}}},"PlanFeatureRequired":{"description":"The account does not have the plan feature required by this operation\n(`PLAN_FEATURE_REQUIRED`). The Free plan lacks `api_access`, so every\noperation refuses a Free account with this response. An account that\nlacks `api_pbr` or `api_asset_download` also gets it on the routes that\nneed those features.\n","content":{"application/json":{"schema":{"$ref":"#/components/schemas/PlanFeatureRequiredError"}}}},"RateLimited":{"description":"Rate limit exceeded (`RATE_LIMITED`). The response includes a `Retry-After`\nheader with the number of seconds to wait before retrying, plus the\n`X-RateLimit-*` headers. Those headers are also present on successful (2xx)\nresponses so a client can pace itself.\n","headers":{"Retry-After":{"description":"Seconds to wait before retrying.","schema":{"type":"integer"}},"X-RateLimit-Limit":{"description":"Request burst capacity for the API key.","schema":{"type":"integer"}},"X-RateLimit-Remaining":{"description":"Requests remaining in the current burst window.","schema":{"type":"integer"}},"X-RateLimit-Reset":{"description":"Unix epoch seconds when the burst capacity is fully restored.\n","schema":{"type":"integer"}}},"content":{"application/json":{"schema":{"$ref":"#/components/schemas/Error"}}}}}},"paths":{"/collections/{collection_id}/assets":{"post":{"operationId":"addCollectionAssets","tags":["collections"],"summary":"Add collection members","description":"Adds distinct live assets from your account. The response reports committed additions and already-present IDs. A collection can hold 10000 members.","parameters":[{"name":"collection_id","in":"path","required":true,"description":"The collection ID.","schema":{"type":"string","format":"uuid"}}],"requestBody":{"required":true,"description":"The request fields.","content":{"application/json":{"schema":{"$ref":"#/components/schemas/CollectionAssetsRequest"}}}},"responses":{"200":{"description":"The requested collection data.","content":{"application/json":{"schema":{"$ref":"#/components/schemas/CollectionAddResult"}}}},"400":{"description":"The request, filters, cursor, or image is invalid.","content":{"application/json":{"schema":{"$ref":"#/components/schemas/Error"}}}},"401":{"$ref":"#/components/responses/Unauthorized"},"403":{"$ref":"#/components/responses/PlanFeatureRequired"},"404":{"description":"The collection or an added asset does not exist in your account.","content":{"application/json":{"schema":{"$ref":"#/components/schemas/Error"}}}},"429":{"$ref":"#/components/responses/RateLimited"},"500":{"description":"The API could not complete the request. Retry later.","content":{"application/json":{"schema":{"$ref":"#/components/schemas/Error"}}}}}}}}}
```

## Remove a collection member

> Removes a member reference and keeps the collection thumbnail.

```json
{"openapi":"3.1.0","info":{"title":"Marso Studio API","version":"0.0.1"},"tags":[{"name":"collections","description":"Manage groups of logical Library Assets and their images."}],"servers":[{"url":"https://api.marso.app/api/public/v1/","description":"Production server."}],"security":[{"apiKey":[]}],"components":{"securitySchemes":{"apiKey":{"type":"http","scheme":"bearer","description":"API key created in the Marso Studio dashboard. The value has the form\n`mxr_live_<entropy>` and is sent as a Bearer token in the `Authorization`\nheader.\n"}},"schemas":{"Error":{"type":"object","required":["error"],"description":"Canonical error envelope. The error payload is nested under the `error`\nkey.\n","properties":{"error":{"$ref":"#/components/schemas/ErrorBody"}}},"ErrorBody":{"type":"object","description":"The body of an error response. The `code` is a stable value clients can\nbranch on; the `message` is a human-readable explanation.\n","required":["code","message"],"properties":{"code":{"$ref":"#/components/schemas/ErrorCode"},"message":{"type":"string","description":"Human-readable description of the error.\n"},"details":{"type":["object","null"],"description":"Additional structured information about the error, or `null` if no\nextra details are available.\n","additionalProperties":true}}},"ErrorCode":{"type":"string","description":"Machine-readable error code. The enum contains every code that this API\ncan return.\n\nPossible enum values:\n- `INVALID_REQUEST`: the request body or a query parameter failed validation.\n- `MALFORMED_UUID`: a path parameter that should be a UUID is not one.\n- `UNAUTHORIZED`: the request could not be authenticated.\n- `API_KEY_MISSING`: no API key was supplied.\n- `API_KEY_INVALID`: the supplied API key does not match any known key.\n- `API_KEY_REVOKED`: the supplied API key has been revoked.\n- `PLAN_FEATURE_REQUIRED`: the account plan does not include a required feature.\n- `SUBSCRIPTION_FEATURE_REQUIRED`: a new Marketplace purchase requires a paid plan or assigned seat.\n- `PRICE_CHANGED`: the selected price differs from the price in the request.\n- `VERSION_CHANGED`: the selected Marketplace version differs from the requested version.\n- `IDEMPOTENCY_CONFLICT`: the same key was used for a different purchase request.\n- `DOWNLOAD_UNAVAILABLE`: the retained private content is temporarily unavailable.\n- `CATALOGUE_CHANGED`: the catalogue changed during pagination; restart the query.\n- `LISTING_NOT_FOUND`: the selected listing is absent or delisted.\n- `MARKETPLACE_DOWNLOAD_ONLY`: Marketplace content supports download and cannot enter generation.\n- `INSUFFICIENT_CREDITS`: the account does not have enough credits for this request.\n- `QUOTA_EXCEEDED`: a usage quota for the account has been exceeded.\n- `FILE_TOO_LARGE`: an uploaded or referenced file exceeds the allowed size.\n- `UPLOAD_TIMEOUT`: an image search upload exceeded 60 seconds. Try a smaller file or a faster connection.\n- `INVALID_CONTENT_TYPE`: a file's content type does not match its declared or expected type.\n- `UNSUPPORTED_ASSET_FORMAT`: a file's extension is not one of the supported asset formats.\n- `FORMAT_NOT_AVAILABLE`: the requested downloadable format does not exist for this asset.\n- `INVALID_FBX_ZIP_STRUCTURE`: a `.zip` upload is not a valid FBX bundle. The error message says why.\n- `IMAGE_RESOLUTION_EXCEEDED`: an image is larger than 4096 by 4096 pixels, or a texture in a mesh file is larger than 8192 by 8192 pixels.\n- `VALIDATION_FAILED`: the API could not check the uploaded file. Upload it again. This is the `error.code` of an upload status read. A failed batch item or run uses the same word with another meaning (see `ExecutionErrorBody`).\n- `UPLOAD_EXPIRED`: the upload did not finish within 1 hour. Upload the file again.\n- `MESH_REQUIREMENTS_NOT_MET`: the mesh file has no polygon geometry, no base-color texture, no UV coordinates, or it names a texture that the upload does not hold.\n- `COLLECTION_NOT_FOUND`: the collection does not exist in your account.\n- `PROJECT_NOT_FOUND`: the project does not exist, or another account owns it.\n- `GRAPH_NOT_FOUND`: the graph does not exist in this project.\n- `NODE_NOT_FOUND`: the node does not exist in this graph.\n- `GROUP_NOT_FOUND`: the group does not exist in this graph.\n- `PROJECT_NODE_LIMIT_EXCEEDED`: the project already holds as many nodes as it may hold.\n- `CONFLICT`: the request conflicts with the current state, so the server made no change.\n- `ASSET_NOT_FOUND`: the asset does not exist or does not belong to the account.\n- `ASSET_IN_USE`: an active execution uses a component, or another PBR execution shares a source or target component.\n- `BATCH_TOO_LARGE`: the batch contains more items than the endpoint allows.\n- `CONCURRENT_EXECUTION_LIMIT_EXCEEDED`: the account has reached its limit on simultaneous submissions.\n- `PBR_FAILURE_CAP_EXCEEDED`: the account has too many recent failed PBR runs; new submissions are temporarily blocked.\n- `EXECUTION_NOT_FOUND`: the execution or batch does not exist or does not belong to the account.\n- `EXECUTION_IN_PROGRESS`: the request conflicts with an execution that is still running.\n- `RATE_LIMITED`: the API key's rate limit was exceeded.\n- `SERVICE_UNAVAILABLE`: the requested operation is temporarily unavailable; retry later.\n- `MAINTENANCE_MODE`: the API is temporarily unavailable for maintenance.\n- `INTERNAL_SERVER_ERROR`: an unexpected server error occurred.\n- `WORKFLOW_CREATION_FAILED`: the API could not start the requested generation.\n- `WORKFLOW_API_ERROR`: generation stopped because of an unexpected error.\n","enum":["INVALID_REQUEST","MALFORMED_UUID","UNAUTHORIZED","API_KEY_MISSING","API_KEY_INVALID","API_KEY_REVOKED","PLAN_FEATURE_REQUIRED","SUBSCRIPTION_FEATURE_REQUIRED","PRICE_CHANGED","VERSION_CHANGED","IDEMPOTENCY_CONFLICT","DOWNLOAD_UNAVAILABLE","CATALOGUE_CHANGED","LISTING_NOT_FOUND","MARKETPLACE_DOWNLOAD_ONLY","INSUFFICIENT_CREDITS","QUOTA_EXCEEDED","FILE_TOO_LARGE","UPLOAD_TIMEOUT","INVALID_CONTENT_TYPE","UNSUPPORTED_ASSET_FORMAT","FORMAT_NOT_AVAILABLE","INVALID_FBX_ZIP_STRUCTURE","IMAGE_RESOLUTION_EXCEEDED","VALIDATION_FAILED","UPLOAD_EXPIRED","MESH_REQUIREMENTS_NOT_MET","COLLECTION_NOT_FOUND","PROJECT_NOT_FOUND","GRAPH_NOT_FOUND","NODE_NOT_FOUND","GROUP_NOT_FOUND","PROJECT_NODE_LIMIT_EXCEEDED","CONFLICT","ASSET_NOT_FOUND","ASSET_IN_USE","BATCH_TOO_LARGE","CONCURRENT_EXECUTION_LIMIT_EXCEEDED","PBR_FAILURE_CAP_EXCEEDED","EXECUTION_NOT_FOUND","EXECUTION_IN_PROGRESS","RATE_LIMITED","SERVICE_UNAVAILABLE","MAINTENANCE_MODE","INTERNAL_SERVER_ERROR","WORKFLOW_CREATION_FAILED","WORKFLOW_API_ERROR"]},"PlanFeatureRequiredError":{"type":"object","required":["error"],"description":"The error envelope for a missing subscription feature.","properties":{"error":{"type":"object","required":["code","message","details"],"description":"The missing-feature error body.","properties":{"code":{"type":"string","const":"PLAN_FEATURE_REQUIRED","description":"Stable error code for a missing subscription feature."},"message":{"type":"string","description":"Human-readable description of the error."},"details":{"$ref":"#/components/schemas/PlanFeatureRequiredErrorDetails"}}}}},"PlanFeatureRequiredErrorDetails":{"type":"object","required":["feature","upgrade_plan_codes"],"description":"The missing feature and the active plans that provide it.","properties":{"feature":{"$ref":"#/components/schemas/SubscriptionFeature"},"upgrade_plan_codes":{"type":"array","description":"Active plans available for purchase that provide the missing\nfeature. The array uses plan class and opaque code order.\n","items":{"$ref":"#/components/schemas/SubscriptionPlanCode"}}}},"SubscriptionFeature":{"type":"string","description":"Product capability available to the account.\n\nPossible enum values:\n- `commercial_license`: commercial-use rights.\n- `api_pbr`: PBR generation through the Public Platform API.\n- `api_asset_download`: asset downloads through the Public Platform API.\n- `custom_polycount`: custom polygon counts for 3D generation.\n- `image_edit`: image editing.\n- `multiview`: multiview generation.\n- `asset_download`: asset downloads in the Marso web app.\n- `api_access`: access to the Public Platform API.\n- `scene_generation`: scene generation and multi-asset runs in the Marso web app.\n- `application_apps`: the Sim Ready and Game Ready apps.\n","enum":["commercial_license","api_pbr","api_asset_download","custom_polycount","image_edit","multiview","asset_download","api_access","scene_generation","application_apps"]},"SubscriptionPlanCode":{"type":"string","pattern":"^plan_[A-Za-z0-9]{7,64}$","description":"Opaque and immutable code for a subscription plan. A plan display name\ncan change. The code starts with `plan_`, followed by 7 to 64 ASCII\nletters or digits.\n"}},"responses":{"Unauthorized":{"description":"The API key is missing, invalid, or revoked. Possible error codes:\n`API_KEY_MISSING`, `API_KEY_INVALID`, `API_KEY_REVOKED`, or `UNAUTHORIZED`.\n","content":{"application/json":{"schema":{"$ref":"#/components/schemas/Error"}}}},"PlanFeatureRequired":{"description":"The account does not have the plan feature required by this operation\n(`PLAN_FEATURE_REQUIRED`). The Free plan lacks `api_access`, so every\noperation refuses a Free account with this response. An account that\nlacks `api_pbr` or `api_asset_download` also gets it on the routes that\nneed those features.\n","content":{"application/json":{"schema":{"$ref":"#/components/schemas/PlanFeatureRequiredError"}}}},"RateLimited":{"description":"Rate limit exceeded (`RATE_LIMITED`). The response includes a `Retry-After`\nheader with the number of seconds to wait before retrying, plus the\n`X-RateLimit-*` headers. Those headers are also present on successful (2xx)\nresponses so a client can pace itself.\n","headers":{"Retry-After":{"description":"Seconds to wait before retrying.","schema":{"type":"integer"}},"X-RateLimit-Limit":{"description":"Request burst capacity for the API key.","schema":{"type":"integer"}},"X-RateLimit-Remaining":{"description":"Requests remaining in the current burst window.","schema":{"type":"integer"}},"X-RateLimit-Reset":{"description":"Unix epoch seconds when the burst capacity is fully restored.\n","schema":{"type":"integer"}}},"content":{"application/json":{"schema":{"$ref":"#/components/schemas/Error"}}}}}},"paths":{"/collections/{collection_id}/assets/{library_asset_id}":{"delete":{"operationId":"removeCollectionAsset","tags":["collections"],"summary":"Remove a collection member","description":"Removes a member reference and keeps the collection thumbnail.","parameters":[{"name":"collection_id","in":"path","required":true,"description":"The collection ID.","schema":{"type":"string","format":"uuid"}},{"name":"library_asset_id","in":"path","required":true,"description":"The logical Library Asset ID.","schema":{"type":"string","format":"uuid"}}],"responses":{"204":{"description":"The operation completed."},"400":{"description":"The request, filters, cursor, or image is invalid.","content":{"application/json":{"schema":{"$ref":"#/components/schemas/Error"}}}},"401":{"$ref":"#/components/responses/Unauthorized"},"403":{"$ref":"#/components/responses/PlanFeatureRequired"},"404":{"description":"The collection or an added asset does not exist in your account.","content":{"application/json":{"schema":{"$ref":"#/components/schemas/Error"}}}},"429":{"$ref":"#/components/responses/RateLimited"},"500":{"description":"The API could not complete the request. Retry later.","content":{"application/json":{"schema":{"$ref":"#/components/schemas/Error"}}}}}}}}}
```

## Save a collection thumbnail

> Saves raw PNG or WebP bytes as an independent image. The limit is 10 MiB and 4096 pixels per edge.

```json
{"openapi":"3.1.0","info":{"title":"Marso Studio API","version":"0.0.1"},"tags":[{"name":"collections","description":"Manage groups of logical Library Assets and their images."}],"servers":[{"url":"https://api.marso.app/api/public/v1/","description":"Production server."}],"security":[{"apiKey":[]}],"components":{"securitySchemes":{"apiKey":{"type":"http","scheme":"bearer","description":"API key created in the Marso Studio dashboard. The value has the form\n`mxr_live_<entropy>` and is sent as a Bearer token in the `Authorization`\nheader.\n"}},"schemas":{"Error":{"type":"object","required":["error"],"description":"Canonical error envelope. The error payload is nested under the `error`\nkey.\n","properties":{"error":{"$ref":"#/components/schemas/ErrorBody"}}},"ErrorBody":{"type":"object","description":"The body of an error response. The `code` is a stable value clients can\nbranch on; the `message` is a human-readable explanation.\n","required":["code","message"],"properties":{"code":{"$ref":"#/components/schemas/ErrorCode"},"message":{"type":"string","description":"Human-readable description of the error.\n"},"details":{"type":["object","null"],"description":"Additional structured information about the error, or `null` if no\nextra details are available.\n","additionalProperties":true}}},"ErrorCode":{"type":"string","description":"Machine-readable error code. The enum contains every code that this API\ncan return.\n\nPossible enum values:\n- `INVALID_REQUEST`: the request body or a query parameter failed validation.\n- `MALFORMED_UUID`: a path parameter that should be a UUID is not one.\n- `UNAUTHORIZED`: the request could not be authenticated.\n- `API_KEY_MISSING`: no API key was supplied.\n- `API_KEY_INVALID`: the supplied API key does not match any known key.\n- `API_KEY_REVOKED`: the supplied API key has been revoked.\n- `PLAN_FEATURE_REQUIRED`: the account plan does not include a required feature.\n- `SUBSCRIPTION_FEATURE_REQUIRED`: a new Marketplace purchase requires a paid plan or assigned seat.\n- `PRICE_CHANGED`: the selected price differs from the price in the request.\n- `VERSION_CHANGED`: the selected Marketplace version differs from the requested version.\n- `IDEMPOTENCY_CONFLICT`: the same key was used for a different purchase request.\n- `DOWNLOAD_UNAVAILABLE`: the retained private content is temporarily unavailable.\n- `CATALOGUE_CHANGED`: the catalogue changed during pagination; restart the query.\n- `LISTING_NOT_FOUND`: the selected listing is absent or delisted.\n- `MARKETPLACE_DOWNLOAD_ONLY`: Marketplace content supports download and cannot enter generation.\n- `INSUFFICIENT_CREDITS`: the account does not have enough credits for this request.\n- `QUOTA_EXCEEDED`: a usage quota for the account has been exceeded.\n- `FILE_TOO_LARGE`: an uploaded or referenced file exceeds the allowed size.\n- `UPLOAD_TIMEOUT`: an image search upload exceeded 60 seconds. Try a smaller file or a faster connection.\n- `INVALID_CONTENT_TYPE`: a file's content type does not match its declared or expected type.\n- `UNSUPPORTED_ASSET_FORMAT`: a file's extension is not one of the supported asset formats.\n- `FORMAT_NOT_AVAILABLE`: the requested downloadable format does not exist for this asset.\n- `INVALID_FBX_ZIP_STRUCTURE`: a `.zip` upload is not a valid FBX bundle. The error message says why.\n- `IMAGE_RESOLUTION_EXCEEDED`: an image is larger than 4096 by 4096 pixels, or a texture in a mesh file is larger than 8192 by 8192 pixels.\n- `VALIDATION_FAILED`: the API could not check the uploaded file. Upload it again. This is the `error.code` of an upload status read. A failed batch item or run uses the same word with another meaning (see `ExecutionErrorBody`).\n- `UPLOAD_EXPIRED`: the upload did not finish within 1 hour. Upload the file again.\n- `MESH_REQUIREMENTS_NOT_MET`: the mesh file has no polygon geometry, no base-color texture, no UV coordinates, or it names a texture that the upload does not hold.\n- `COLLECTION_NOT_FOUND`: the collection does not exist in your account.\n- `PROJECT_NOT_FOUND`: the project does not exist, or another account owns it.\n- `GRAPH_NOT_FOUND`: the graph does not exist in this project.\n- `NODE_NOT_FOUND`: the node does not exist in this graph.\n- `GROUP_NOT_FOUND`: the group does not exist in this graph.\n- `PROJECT_NODE_LIMIT_EXCEEDED`: the project already holds as many nodes as it may hold.\n- `CONFLICT`: the request conflicts with the current state, so the server made no change.\n- `ASSET_NOT_FOUND`: the asset does not exist or does not belong to the account.\n- `ASSET_IN_USE`: an active execution uses a component, or another PBR execution shares a source or target component.\n- `BATCH_TOO_LARGE`: the batch contains more items than the endpoint allows.\n- `CONCURRENT_EXECUTION_LIMIT_EXCEEDED`: the account has reached its limit on simultaneous submissions.\n- `PBR_FAILURE_CAP_EXCEEDED`: the account has too many recent failed PBR runs; new submissions are temporarily blocked.\n- `EXECUTION_NOT_FOUND`: the execution or batch does not exist or does not belong to the account.\n- `EXECUTION_IN_PROGRESS`: the request conflicts with an execution that is still running.\n- `RATE_LIMITED`: the API key's rate limit was exceeded.\n- `SERVICE_UNAVAILABLE`: the requested operation is temporarily unavailable; retry later.\n- `MAINTENANCE_MODE`: the API is temporarily unavailable for maintenance.\n- `INTERNAL_SERVER_ERROR`: an unexpected server error occurred.\n- `WORKFLOW_CREATION_FAILED`: the API could not start the requested generation.\n- `WORKFLOW_API_ERROR`: generation stopped because of an unexpected error.\n","enum":["INVALID_REQUEST","MALFORMED_UUID","UNAUTHORIZED","API_KEY_MISSING","API_KEY_INVALID","API_KEY_REVOKED","PLAN_FEATURE_REQUIRED","SUBSCRIPTION_FEATURE_REQUIRED","PRICE_CHANGED","VERSION_CHANGED","IDEMPOTENCY_CONFLICT","DOWNLOAD_UNAVAILABLE","CATALOGUE_CHANGED","LISTING_NOT_FOUND","MARKETPLACE_DOWNLOAD_ONLY","INSUFFICIENT_CREDITS","QUOTA_EXCEEDED","FILE_TOO_LARGE","UPLOAD_TIMEOUT","INVALID_CONTENT_TYPE","UNSUPPORTED_ASSET_FORMAT","FORMAT_NOT_AVAILABLE","INVALID_FBX_ZIP_STRUCTURE","IMAGE_RESOLUTION_EXCEEDED","VALIDATION_FAILED","UPLOAD_EXPIRED","MESH_REQUIREMENTS_NOT_MET","COLLECTION_NOT_FOUND","PROJECT_NOT_FOUND","GRAPH_NOT_FOUND","NODE_NOT_FOUND","GROUP_NOT_FOUND","PROJECT_NODE_LIMIT_EXCEEDED","CONFLICT","ASSET_NOT_FOUND","ASSET_IN_USE","BATCH_TOO_LARGE","CONCURRENT_EXECUTION_LIMIT_EXCEEDED","PBR_FAILURE_CAP_EXCEEDED","EXECUTION_NOT_FOUND","EXECUTION_IN_PROGRESS","RATE_LIMITED","SERVICE_UNAVAILABLE","MAINTENANCE_MODE","INTERNAL_SERVER_ERROR","WORKFLOW_CREATION_FAILED","WORKFLOW_API_ERROR"]},"PlanFeatureRequiredError":{"type":"object","required":["error"],"description":"The error envelope for a missing subscription feature.","properties":{"error":{"type":"object","required":["code","message","details"],"description":"The missing-feature error body.","properties":{"code":{"type":"string","const":"PLAN_FEATURE_REQUIRED","description":"Stable error code for a missing subscription feature."},"message":{"type":"string","description":"Human-readable description of the error."},"details":{"$ref":"#/components/schemas/PlanFeatureRequiredErrorDetails"}}}}},"PlanFeatureRequiredErrorDetails":{"type":"object","required":["feature","upgrade_plan_codes"],"description":"The missing feature and the active plans that provide it.","properties":{"feature":{"$ref":"#/components/schemas/SubscriptionFeature"},"upgrade_plan_codes":{"type":"array","description":"Active plans available for purchase that provide the missing\nfeature. The array uses plan class and opaque code order.\n","items":{"$ref":"#/components/schemas/SubscriptionPlanCode"}}}},"SubscriptionFeature":{"type":"string","description":"Product capability available to the account.\n\nPossible enum values:\n- `commercial_license`: commercial-use rights.\n- `api_pbr`: PBR generation through the Public Platform API.\n- `api_asset_download`: asset downloads through the Public Platform API.\n- `custom_polycount`: custom polygon counts for 3D generation.\n- `image_edit`: image editing.\n- `multiview`: multiview generation.\n- `asset_download`: asset downloads in the Marso web app.\n- `api_access`: access to the Public Platform API.\n- `scene_generation`: scene generation and multi-asset runs in the Marso web app.\n- `application_apps`: the Sim Ready and Game Ready apps.\n","enum":["commercial_license","api_pbr","api_asset_download","custom_polycount","image_edit","multiview","asset_download","api_access","scene_generation","application_apps"]},"SubscriptionPlanCode":{"type":"string","pattern":"^plan_[A-Za-z0-9]{7,64}$","description":"Opaque and immutable code for a subscription plan. A plan display name\ncan change. The code starts with `plan_`, followed by 7 to 64 ASCII\nletters or digits.\n"}},"responses":{"Unauthorized":{"description":"The API key is missing, invalid, or revoked. Possible error codes:\n`API_KEY_MISSING`, `API_KEY_INVALID`, `API_KEY_REVOKED`, or `UNAUTHORIZED`.\n","content":{"application/json":{"schema":{"$ref":"#/components/schemas/Error"}}}},"PlanFeatureRequired":{"description":"The account does not have the plan feature required by this operation\n(`PLAN_FEATURE_REQUIRED`). The Free plan lacks `api_access`, so every\noperation refuses a Free account with this response. An account that\nlacks `api_pbr` or `api_asset_download` also gets it on the routes that\nneed those features.\n","content":{"application/json":{"schema":{"$ref":"#/components/schemas/PlanFeatureRequiredError"}}}},"RateLimited":{"description":"Rate limit exceeded (`RATE_LIMITED`). The response includes a `Retry-After`\nheader with the number of seconds to wait before retrying, plus the\n`X-RateLimit-*` headers. Those headers are also present on successful (2xx)\nresponses so a client can pace itself.\n","headers":{"Retry-After":{"description":"Seconds to wait before retrying.","schema":{"type":"integer"}},"X-RateLimit-Limit":{"description":"Request burst capacity for the API key.","schema":{"type":"integer"}},"X-RateLimit-Remaining":{"description":"Requests remaining in the current burst window.","schema":{"type":"integer"}},"X-RateLimit-Reset":{"description":"Unix epoch seconds when the burst capacity is fully restored.\n","schema":{"type":"integer"}}},"content":{"application/json":{"schema":{"$ref":"#/components/schemas/Error"}}}}}},"paths":{"/collections/{collection_id}/thumbnail":{"put":{"operationId":"uploadCollectionThumbnail","tags":["collections"],"summary":"Save a collection thumbnail","description":"Saves raw PNG or WebP bytes as an independent image. The limit is 10 MiB and 4096 pixels per edge.","parameters":[{"name":"collection_id","in":"path","required":true,"description":"The collection ID.","schema":{"type":"string","format":"uuid"}}],"requestBody":{"required":true,"description":"The image bytes, with the matching Content-Type.","content":{"image/png":{"schema":{"type":"string","format":"binary"}},"image/webp":{"schema":{"type":"string","format":"binary"}}}},"responses":{"204":{"description":"The operation completed."},"400":{"description":"The request, filters, cursor, or image is invalid.","content":{"application/json":{"schema":{"$ref":"#/components/schemas/Error"}}}},"401":{"$ref":"#/components/responses/Unauthorized"},"403":{"$ref":"#/components/responses/PlanFeatureRequired"},"404":{"description":"The collection or an added asset does not exist in your account.","content":{"application/json":{"schema":{"$ref":"#/components/schemas/Error"}}}},"429":{"$ref":"#/components/responses/RateLimited"},"500":{"description":"The API could not complete the request. Retry later.","content":{"application/json":{"schema":{"$ref":"#/components/schemas/Error"}}}}}}}}}
```

## Generate a collection preview

> Returns a 1280 by 720 PNG from the first 8 live members in a 4 by 2 grid. Missing or invalid thumbnails leave blank tiles. This changes no saved image. Save the preview with PUT /collections/{collection\_id}/thumbnail.

```json
{"openapi":"3.1.0","info":{"title":"Marso Studio API","version":"0.0.1"},"tags":[{"name":"collections","description":"Manage groups of logical Library Assets and their images."}],"servers":[{"url":"https://api.marso.app/api/public/v1/","description":"Production server."}],"security":[{"apiKey":[]}],"components":{"securitySchemes":{"apiKey":{"type":"http","scheme":"bearer","description":"API key created in the Marso Studio dashboard. The value has the form\n`mxr_live_<entropy>` and is sent as a Bearer token in the `Authorization`\nheader.\n"}},"schemas":{"Error":{"type":"object","required":["error"],"description":"Canonical error envelope. The error payload is nested under the `error`\nkey.\n","properties":{"error":{"$ref":"#/components/schemas/ErrorBody"}}},"ErrorBody":{"type":"object","description":"The body of an error response. The `code` is a stable value clients can\nbranch on; the `message` is a human-readable explanation.\n","required":["code","message"],"properties":{"code":{"$ref":"#/components/schemas/ErrorCode"},"message":{"type":"string","description":"Human-readable description of the error.\n"},"details":{"type":["object","null"],"description":"Additional structured information about the error, or `null` if no\nextra details are available.\n","additionalProperties":true}}},"ErrorCode":{"type":"string","description":"Machine-readable error code. The enum contains every code that this API\ncan return.\n\nPossible enum values:\n- `INVALID_REQUEST`: the request body or a query parameter failed validation.\n- `MALFORMED_UUID`: a path parameter that should be a UUID is not one.\n- `UNAUTHORIZED`: the request could not be authenticated.\n- `API_KEY_MISSING`: no API key was supplied.\n- `API_KEY_INVALID`: the supplied API key does not match any known key.\n- `API_KEY_REVOKED`: the supplied API key has been revoked.\n- `PLAN_FEATURE_REQUIRED`: the account plan does not include a required feature.\n- `SUBSCRIPTION_FEATURE_REQUIRED`: a new Marketplace purchase requires a paid plan or assigned seat.\n- `PRICE_CHANGED`: the selected price differs from the price in the request.\n- `VERSION_CHANGED`: the selected Marketplace version differs from the requested version.\n- `IDEMPOTENCY_CONFLICT`: the same key was used for a different purchase request.\n- `DOWNLOAD_UNAVAILABLE`: the retained private content is temporarily unavailable.\n- `CATALOGUE_CHANGED`: the catalogue changed during pagination; restart the query.\n- `LISTING_NOT_FOUND`: the selected listing is absent or delisted.\n- `MARKETPLACE_DOWNLOAD_ONLY`: Marketplace content supports download and cannot enter generation.\n- `INSUFFICIENT_CREDITS`: the account does not have enough credits for this request.\n- `QUOTA_EXCEEDED`: a usage quota for the account has been exceeded.\n- `FILE_TOO_LARGE`: an uploaded or referenced file exceeds the allowed size.\n- `UPLOAD_TIMEOUT`: an image search upload exceeded 60 seconds. Try a smaller file or a faster connection.\n- `INVALID_CONTENT_TYPE`: a file's content type does not match its declared or expected type.\n- `UNSUPPORTED_ASSET_FORMAT`: a file's extension is not one of the supported asset formats.\n- `FORMAT_NOT_AVAILABLE`: the requested downloadable format does not exist for this asset.\n- `INVALID_FBX_ZIP_STRUCTURE`: a `.zip` upload is not a valid FBX bundle. The error message says why.\n- `IMAGE_RESOLUTION_EXCEEDED`: an image is larger than 4096 by 4096 pixels, or a texture in a mesh file is larger than 8192 by 8192 pixels.\n- `VALIDATION_FAILED`: the API could not check the uploaded file. Upload it again. This is the `error.code` of an upload status read. A failed batch item or run uses the same word with another meaning (see `ExecutionErrorBody`).\n- `UPLOAD_EXPIRED`: the upload did not finish within 1 hour. Upload the file again.\n- `MESH_REQUIREMENTS_NOT_MET`: the mesh file has no polygon geometry, no base-color texture, no UV coordinates, or it names a texture that the upload does not hold.\n- `COLLECTION_NOT_FOUND`: the collection does not exist in your account.\n- `PROJECT_NOT_FOUND`: the project does not exist, or another account owns it.\n- `GRAPH_NOT_FOUND`: the graph does not exist in this project.\n- `NODE_NOT_FOUND`: the node does not exist in this graph.\n- `GROUP_NOT_FOUND`: the group does not exist in this graph.\n- `PROJECT_NODE_LIMIT_EXCEEDED`: the project already holds as many nodes as it may hold.\n- `CONFLICT`: the request conflicts with the current state, so the server made no change.\n- `ASSET_NOT_FOUND`: the asset does not exist or does not belong to the account.\n- `ASSET_IN_USE`: an active execution uses a component, or another PBR execution shares a source or target component.\n- `BATCH_TOO_LARGE`: the batch contains more items than the endpoint allows.\n- `CONCURRENT_EXECUTION_LIMIT_EXCEEDED`: the account has reached its limit on simultaneous submissions.\n- `PBR_FAILURE_CAP_EXCEEDED`: the account has too many recent failed PBR runs; new submissions are temporarily blocked.\n- `EXECUTION_NOT_FOUND`: the execution or batch does not exist or does not belong to the account.\n- `EXECUTION_IN_PROGRESS`: the request conflicts with an execution that is still running.\n- `RATE_LIMITED`: the API key's rate limit was exceeded.\n- `SERVICE_UNAVAILABLE`: the requested operation is temporarily unavailable; retry later.\n- `MAINTENANCE_MODE`: the API is temporarily unavailable for maintenance.\n- `INTERNAL_SERVER_ERROR`: an unexpected server error occurred.\n- `WORKFLOW_CREATION_FAILED`: the API could not start the requested generation.\n- `WORKFLOW_API_ERROR`: generation stopped because of an unexpected error.\n","enum":["INVALID_REQUEST","MALFORMED_UUID","UNAUTHORIZED","API_KEY_MISSING","API_KEY_INVALID","API_KEY_REVOKED","PLAN_FEATURE_REQUIRED","SUBSCRIPTION_FEATURE_REQUIRED","PRICE_CHANGED","VERSION_CHANGED","IDEMPOTENCY_CONFLICT","DOWNLOAD_UNAVAILABLE","CATALOGUE_CHANGED","LISTING_NOT_FOUND","MARKETPLACE_DOWNLOAD_ONLY","INSUFFICIENT_CREDITS","QUOTA_EXCEEDED","FILE_TOO_LARGE","UPLOAD_TIMEOUT","INVALID_CONTENT_TYPE","UNSUPPORTED_ASSET_FORMAT","FORMAT_NOT_AVAILABLE","INVALID_FBX_ZIP_STRUCTURE","IMAGE_RESOLUTION_EXCEEDED","VALIDATION_FAILED","UPLOAD_EXPIRED","MESH_REQUIREMENTS_NOT_MET","COLLECTION_NOT_FOUND","PROJECT_NOT_FOUND","GRAPH_NOT_FOUND","NODE_NOT_FOUND","GROUP_NOT_FOUND","PROJECT_NODE_LIMIT_EXCEEDED","CONFLICT","ASSET_NOT_FOUND","ASSET_IN_USE","BATCH_TOO_LARGE","CONCURRENT_EXECUTION_LIMIT_EXCEEDED","PBR_FAILURE_CAP_EXCEEDED","EXECUTION_NOT_FOUND","EXECUTION_IN_PROGRESS","RATE_LIMITED","SERVICE_UNAVAILABLE","MAINTENANCE_MODE","INTERNAL_SERVER_ERROR","WORKFLOW_CREATION_FAILED","WORKFLOW_API_ERROR"]},"PlanFeatureRequiredError":{"type":"object","required":["error"],"description":"The error envelope for a missing subscription feature.","properties":{"error":{"type":"object","required":["code","message","details"],"description":"The missing-feature error body.","properties":{"code":{"type":"string","const":"PLAN_FEATURE_REQUIRED","description":"Stable error code for a missing subscription feature."},"message":{"type":"string","description":"Human-readable description of the error."},"details":{"$ref":"#/components/schemas/PlanFeatureRequiredErrorDetails"}}}}},"PlanFeatureRequiredErrorDetails":{"type":"object","required":["feature","upgrade_plan_codes"],"description":"The missing feature and the active plans that provide it.","properties":{"feature":{"$ref":"#/components/schemas/SubscriptionFeature"},"upgrade_plan_codes":{"type":"array","description":"Active plans available for purchase that provide the missing\nfeature. The array uses plan class and opaque code order.\n","items":{"$ref":"#/components/schemas/SubscriptionPlanCode"}}}},"SubscriptionFeature":{"type":"string","description":"Product capability available to the account.\n\nPossible enum values:\n- `commercial_license`: commercial-use rights.\n- `api_pbr`: PBR generation through the Public Platform API.\n- `api_asset_download`: asset downloads through the Public Platform API.\n- `custom_polycount`: custom polygon counts for 3D generation.\n- `image_edit`: image editing.\n- `multiview`: multiview generation.\n- `asset_download`: asset downloads in the Marso web app.\n- `api_access`: access to the Public Platform API.\n- `scene_generation`: scene generation and multi-asset runs in the Marso web app.\n- `application_apps`: the Sim Ready and Game Ready apps.\n","enum":["commercial_license","api_pbr","api_asset_download","custom_polycount","image_edit","multiview","asset_download","api_access","scene_generation","application_apps"]},"SubscriptionPlanCode":{"type":"string","pattern":"^plan_[A-Za-z0-9]{7,64}$","description":"Opaque and immutable code for a subscription plan. A plan display name\ncan change. The code starts with `plan_`, followed by 7 to 64 ASCII\nletters or digits.\n"}},"responses":{"Unauthorized":{"description":"The API key is missing, invalid, or revoked. Possible error codes:\n`API_KEY_MISSING`, `API_KEY_INVALID`, `API_KEY_REVOKED`, or `UNAUTHORIZED`.\n","content":{"application/json":{"schema":{"$ref":"#/components/schemas/Error"}}}},"PlanFeatureRequired":{"description":"The account does not have the plan feature required by this operation\n(`PLAN_FEATURE_REQUIRED`). The Free plan lacks `api_access`, so every\noperation refuses a Free account with this response. An account that\nlacks `api_pbr` or `api_asset_download` also gets it on the routes that\nneed those features.\n","content":{"application/json":{"schema":{"$ref":"#/components/schemas/PlanFeatureRequiredError"}}}},"RateLimited":{"description":"Rate limit exceeded (`RATE_LIMITED`). The response includes a `Retry-After`\nheader with the number of seconds to wait before retrying, plus the\n`X-RateLimit-*` headers. Those headers are also present on successful (2xx)\nresponses so a client can pace itself.\n","headers":{"Retry-After":{"description":"Seconds to wait before retrying.","schema":{"type":"integer"}},"X-RateLimit-Limit":{"description":"Request burst capacity for the API key.","schema":{"type":"integer"}},"X-RateLimit-Remaining":{"description":"Requests remaining in the current burst window.","schema":{"type":"integer"}},"X-RateLimit-Reset":{"description":"Unix epoch seconds when the burst capacity is fully restored.\n","schema":{"type":"integer"}}},"content":{"application/json":{"schema":{"$ref":"#/components/schemas/Error"}}}}}},"paths":{"/collections/{collection_id}/thumbnail/generate":{"post":{"operationId":"generateCollectionThumbnail","tags":["collections"],"summary":"Generate a collection preview","description":"Returns a 1280 by 720 PNG from the first 8 live members in a 4 by 2 grid. Missing or invalid thumbnails leave blank tiles. This changes no saved image. Save the preview with PUT /collections/{collection_id}/thumbnail.","parameters":[{"name":"collection_id","in":"path","required":true,"description":"The collection ID.","schema":{"type":"string","format":"uuid"}}],"responses":{"200":{"description":"The PNG preview. No saved image changes.","content":{"image/png":{"schema":{"type":"string","format":"binary"}}}},"400":{"description":"The request, filters, cursor, or image is invalid.","content":{"application/json":{"schema":{"$ref":"#/components/schemas/Error"}}}},"401":{"$ref":"#/components/responses/Unauthorized"},"403":{"$ref":"#/components/responses/PlanFeatureRequired"},"404":{"description":"The collection or an added asset does not exist in your account.","content":{"application/json":{"schema":{"$ref":"#/components/schemas/Error"}}}},"429":{"$ref":"#/components/responses/RateLimited"},"500":{"description":"The API could not complete the request. Retry later.","content":{"application/json":{"schema":{"$ref":"#/components/schemas/Error"}}}}}}}}}
```

## List direct source images

> Returns direct image inputs for mesh generation, including multiview components. PBR members use their geometry inputs. Download the physical IDs through the asset endpoints.

```json
{"openapi":"3.1.0","info":{"title":"Marso Studio API","version":"0.0.1"},"tags":[{"name":"collections","description":"Manage groups of logical Library Assets and their images."}],"servers":[{"url":"https://api.marso.app/api/public/v1/","description":"Production server."}],"security":[{"apiKey":[]}],"components":{"securitySchemes":{"apiKey":{"type":"http","scheme":"bearer","description":"API key created in the Marso Studio dashboard. The value has the form\n`mxr_live_<entropy>` and is sent as a Bearer token in the `Authorization`\nheader.\n"}},"schemas":{"CollectionSourceImageList":{"type":"object","description":"The source references for one member page. Downloads use the existing asset endpoints and their plan requirements.","properties":{"data":{"type":"array","description":"The member source references.","items":{"$ref":"#/components/schemas/CollectionSourceImages"}},"pagination":{"$ref":"#/components/schemas/PublicPagination"},"unavailable_library_asset_ids":{"type":"array","description":"The IDs that this page cannot resolve.","items":{"type":"string","description":"The logical Library Asset ID.","format":"uuid"}}},"required":["data","pagination","unavailable_library_asset_ids"]},"CollectionSourceImages":{"type":"object","description":"Direct inputs for a collection member. PBR members use their geometry inputs. This list does not walk earlier ancestors of images.","properties":{"library_asset_id":{"type":"string","description":"The collection member ID.","format":"uuid"},"source_images":{"type":"array","description":"The direct image files, without duplicate physical IDs.","items":{"$ref":"#/components/schemas/CollectionSourceImage"}},"unavailable_source_library_asset_ids":{"type":"array","description":"The unresolved logical inputs.","items":{"type":"string","description":"The ID of the Library Asset that supplied the input.","format":"uuid"}}},"required":["library_asset_id","source_images","unavailable_source_library_asset_ids"]},"CollectionSourceImage":{"type":"object","description":"A file for a direct image input.","properties":{"asset_id":{"type":"string","description":"The physical Asset ID. Download through GET /assets/{asset_id} or POST /assets/download.","format":"uuid"},"input_role":{"type":"string","description":"The generation input role or multiview component role."},"source_library_asset_id":{"type":"string","description":"The ID of the Library Asset that supplied the input.","format":"uuid"}},"required":["asset_id","input_role","source_library_asset_id"]},"PublicPagination":{"type":"object","required":["has_more"],"description":"Cursor pagination envelope.\n","properties":{"next_cursor":{"type":"string","description":"Opaque cursor for the next page. Absent when the result set is\nexhausted. Echo it back verbatim as `cursor`.\n"},"has_more":{"type":"boolean","description":"Whether another page follows. Always agrees with the presence of\n`next_cursor`.\n"}}},"Error":{"type":"object","required":["error"],"description":"Canonical error envelope. The error payload is nested under the `error`\nkey.\n","properties":{"error":{"$ref":"#/components/schemas/ErrorBody"}}},"ErrorBody":{"type":"object","description":"The body of an error response. The `code` is a stable value clients can\nbranch on; the `message` is a human-readable explanation.\n","required":["code","message"],"properties":{"code":{"$ref":"#/components/schemas/ErrorCode"},"message":{"type":"string","description":"Human-readable description of the error.\n"},"details":{"type":["object","null"],"description":"Additional structured information about the error, or `null` if no\nextra details are available.\n","additionalProperties":true}}},"ErrorCode":{"type":"string","description":"Machine-readable error code. The enum contains every code that this API\ncan return.\n\nPossible enum values:\n- `INVALID_REQUEST`: the request body or a query parameter failed validation.\n- `MALFORMED_UUID`: a path parameter that should be a UUID is not one.\n- `UNAUTHORIZED`: the request could not be authenticated.\n- `API_KEY_MISSING`: no API key was supplied.\n- `API_KEY_INVALID`: the supplied API key does not match any known key.\n- `API_KEY_REVOKED`: the supplied API key has been revoked.\n- `PLAN_FEATURE_REQUIRED`: the account plan does not include a required feature.\n- `SUBSCRIPTION_FEATURE_REQUIRED`: a new Marketplace purchase requires a paid plan or assigned seat.\n- `PRICE_CHANGED`: the selected price differs from the price in the request.\n- `VERSION_CHANGED`: the selected Marketplace version differs from the requested version.\n- `IDEMPOTENCY_CONFLICT`: the same key was used for a different purchase request.\n- `DOWNLOAD_UNAVAILABLE`: the retained private content is temporarily unavailable.\n- `CATALOGUE_CHANGED`: the catalogue changed during pagination; restart the query.\n- `LISTING_NOT_FOUND`: the selected listing is absent or delisted.\n- `MARKETPLACE_DOWNLOAD_ONLY`: Marketplace content supports download and cannot enter generation.\n- `INSUFFICIENT_CREDITS`: the account does not have enough credits for this request.\n- `QUOTA_EXCEEDED`: a usage quota for the account has been exceeded.\n- `FILE_TOO_LARGE`: an uploaded or referenced file exceeds the allowed size.\n- `UPLOAD_TIMEOUT`: an image search upload exceeded 60 seconds. Try a smaller file or a faster connection.\n- `INVALID_CONTENT_TYPE`: a file's content type does not match its declared or expected type.\n- `UNSUPPORTED_ASSET_FORMAT`: a file's extension is not one of the supported asset formats.\n- `FORMAT_NOT_AVAILABLE`: the requested downloadable format does not exist for this asset.\n- `INVALID_FBX_ZIP_STRUCTURE`: a `.zip` upload is not a valid FBX bundle. The error message says why.\n- `IMAGE_RESOLUTION_EXCEEDED`: an image is larger than 4096 by 4096 pixels, or a texture in a mesh file is larger than 8192 by 8192 pixels.\n- `VALIDATION_FAILED`: the API could not check the uploaded file. Upload it again. This is the `error.code` of an upload status read. A failed batch item or run uses the same word with another meaning (see `ExecutionErrorBody`).\n- `UPLOAD_EXPIRED`: the upload did not finish within 1 hour. Upload the file again.\n- `MESH_REQUIREMENTS_NOT_MET`: the mesh file has no polygon geometry, no base-color texture, no UV coordinates, or it names a texture that the upload does not hold.\n- `COLLECTION_NOT_FOUND`: the collection does not exist in your account.\n- `PROJECT_NOT_FOUND`: the project does not exist, or another account owns it.\n- `GRAPH_NOT_FOUND`: the graph does not exist in this project.\n- `NODE_NOT_FOUND`: the node does not exist in this graph.\n- `GROUP_NOT_FOUND`: the group does not exist in this graph.\n- `PROJECT_NODE_LIMIT_EXCEEDED`: the project already holds as many nodes as it may hold.\n- `CONFLICT`: the request conflicts with the current state, so the server made no change.\n- `ASSET_NOT_FOUND`: the asset does not exist or does not belong to the account.\n- `ASSET_IN_USE`: an active execution uses a component, or another PBR execution shares a source or target component.\n- `BATCH_TOO_LARGE`: the batch contains more items than the endpoint allows.\n- `CONCURRENT_EXECUTION_LIMIT_EXCEEDED`: the account has reached its limit on simultaneous submissions.\n- `PBR_FAILURE_CAP_EXCEEDED`: the account has too many recent failed PBR runs; new submissions are temporarily blocked.\n- `EXECUTION_NOT_FOUND`: the execution or batch does not exist or does not belong to the account.\n- `EXECUTION_IN_PROGRESS`: the request conflicts with an execution that is still running.\n- `RATE_LIMITED`: the API key's rate limit was exceeded.\n- `SERVICE_UNAVAILABLE`: the requested operation is temporarily unavailable; retry later.\n- `MAINTENANCE_MODE`: the API is temporarily unavailable for maintenance.\n- `INTERNAL_SERVER_ERROR`: an unexpected server error occurred.\n- `WORKFLOW_CREATION_FAILED`: the API could not start the requested generation.\n- `WORKFLOW_API_ERROR`: generation stopped because of an unexpected error.\n","enum":["INVALID_REQUEST","MALFORMED_UUID","UNAUTHORIZED","API_KEY_MISSING","API_KEY_INVALID","API_KEY_REVOKED","PLAN_FEATURE_REQUIRED","SUBSCRIPTION_FEATURE_REQUIRED","PRICE_CHANGED","VERSION_CHANGED","IDEMPOTENCY_CONFLICT","DOWNLOAD_UNAVAILABLE","CATALOGUE_CHANGED","LISTING_NOT_FOUND","MARKETPLACE_DOWNLOAD_ONLY","INSUFFICIENT_CREDITS","QUOTA_EXCEEDED","FILE_TOO_LARGE","UPLOAD_TIMEOUT","INVALID_CONTENT_TYPE","UNSUPPORTED_ASSET_FORMAT","FORMAT_NOT_AVAILABLE","INVALID_FBX_ZIP_STRUCTURE","IMAGE_RESOLUTION_EXCEEDED","VALIDATION_FAILED","UPLOAD_EXPIRED","MESH_REQUIREMENTS_NOT_MET","COLLECTION_NOT_FOUND","PROJECT_NOT_FOUND","GRAPH_NOT_FOUND","NODE_NOT_FOUND","GROUP_NOT_FOUND","PROJECT_NODE_LIMIT_EXCEEDED","CONFLICT","ASSET_NOT_FOUND","ASSET_IN_USE","BATCH_TOO_LARGE","CONCURRENT_EXECUTION_LIMIT_EXCEEDED","PBR_FAILURE_CAP_EXCEEDED","EXECUTION_NOT_FOUND","EXECUTION_IN_PROGRESS","RATE_LIMITED","SERVICE_UNAVAILABLE","MAINTENANCE_MODE","INTERNAL_SERVER_ERROR","WORKFLOW_CREATION_FAILED","WORKFLOW_API_ERROR"]},"PlanFeatureRequiredError":{"type":"object","required":["error"],"description":"The error envelope for a missing subscription feature.","properties":{"error":{"type":"object","required":["code","message","details"],"description":"The missing-feature error body.","properties":{"code":{"type":"string","const":"PLAN_FEATURE_REQUIRED","description":"Stable error code for a missing subscription feature."},"message":{"type":"string","description":"Human-readable description of the error."},"details":{"$ref":"#/components/schemas/PlanFeatureRequiredErrorDetails"}}}}},"PlanFeatureRequiredErrorDetails":{"type":"object","required":["feature","upgrade_plan_codes"],"description":"The missing feature and the active plans that provide it.","properties":{"feature":{"$ref":"#/components/schemas/SubscriptionFeature"},"upgrade_plan_codes":{"type":"array","description":"Active plans available for purchase that provide the missing\nfeature. The array uses plan class and opaque code order.\n","items":{"$ref":"#/components/schemas/SubscriptionPlanCode"}}}},"SubscriptionFeature":{"type":"string","description":"Product capability available to the account.\n\nPossible enum values:\n- `commercial_license`: commercial-use rights.\n- `api_pbr`: PBR generation through the Public Platform API.\n- `api_asset_download`: asset downloads through the Public Platform API.\n- `custom_polycount`: custom polygon counts for 3D generation.\n- `image_edit`: image editing.\n- `multiview`: multiview generation.\n- `asset_download`: asset downloads in the Marso web app.\n- `api_access`: access to the Public Platform API.\n- `scene_generation`: scene generation and multi-asset runs in the Marso web app.\n- `application_apps`: the Sim Ready and Game Ready apps.\n","enum":["commercial_license","api_pbr","api_asset_download","custom_polycount","image_edit","multiview","asset_download","api_access","scene_generation","application_apps"]},"SubscriptionPlanCode":{"type":"string","pattern":"^plan_[A-Za-z0-9]{7,64}$","description":"Opaque and immutable code for a subscription plan. A plan display name\ncan change. The code starts with `plan_`, followed by 7 to 64 ASCII\nletters or digits.\n"}},"responses":{"Unauthorized":{"description":"The API key is missing, invalid, or revoked. Possible error codes:\n`API_KEY_MISSING`, `API_KEY_INVALID`, `API_KEY_REVOKED`, or `UNAUTHORIZED`.\n","content":{"application/json":{"schema":{"$ref":"#/components/schemas/Error"}}}},"PlanFeatureRequired":{"description":"The account does not have the plan feature required by this operation\n(`PLAN_FEATURE_REQUIRED`). The Free plan lacks `api_access`, so every\noperation refuses a Free account with this response. An account that\nlacks `api_pbr` or `api_asset_download` also gets it on the routes that\nneed those features.\n","content":{"application/json":{"schema":{"$ref":"#/components/schemas/PlanFeatureRequiredError"}}}},"RateLimited":{"description":"Rate limit exceeded (`RATE_LIMITED`). The response includes a `Retry-After`\nheader with the number of seconds to wait before retrying, plus the\n`X-RateLimit-*` headers. Those headers are also present on successful (2xx)\nresponses so a client can pace itself.\n","headers":{"Retry-After":{"description":"Seconds to wait before retrying.","schema":{"type":"integer"}},"X-RateLimit-Limit":{"description":"Request burst capacity for the API key.","schema":{"type":"integer"}},"X-RateLimit-Remaining":{"description":"Requests remaining in the current burst window.","schema":{"type":"integer"}},"X-RateLimit-Reset":{"description":"Unix epoch seconds when the burst capacity is fully restored.\n","schema":{"type":"integer"}}},"content":{"application/json":{"schema":{"$ref":"#/components/schemas/Error"}}}}}},"paths":{"/collections/{collection_id}/source-images":{"get":{"operationId":"listCollectionSourceImages","tags":["collections"],"summary":"List direct source images","description":"Returns direct image inputs for mesh generation, including multiview components. PBR members use their geometry inputs. Download the physical IDs through the asset endpoints.","parameters":[{"name":"collection_id","in":"path","required":true,"description":"The collection ID.","schema":{"type":"string","format":"uuid"}},{"name":"limit","in":"query","required":false,"description":"The page size. Defaults to 50; the API reduces values above 100 to 100.","schema":{"type":"integer","minimum":1,"default":50}},{"name":"cursor","in":"query","required":false,"description":"The opaque continuation token. Keep the same filters and sort order.","schema":{"type":"string"}}],"responses":{"200":{"description":"The requested collection data.","content":{"application/json":{"schema":{"$ref":"#/components/schemas/CollectionSourceImageList"}}}},"400":{"description":"The request, filters, cursor, or image is invalid.","content":{"application/json":{"schema":{"$ref":"#/components/schemas/Error"}}}},"401":{"$ref":"#/components/responses/Unauthorized"},"403":{"$ref":"#/components/responses/PlanFeatureRequired"},"404":{"description":"The collection or an added asset does not exist in your account.","content":{"application/json":{"schema":{"$ref":"#/components/schemas/Error"}}}},"429":{"$ref":"#/components/responses/RateLimited"},"500":{"description":"The API could not complete the request. Retry later.","content":{"application/json":{"schema":{"$ref":"#/components/schemas/Error"}}}}}}}}}
```


---

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