> ## Documentation Index
> Fetch the complete documentation index at: https://fal.ai/docs/llms.txt
> Use this file to discover all available pages before exploring further.

# Update asset collection

> Update asset collection for the authenticated user's fal Assets library.



## OpenAPI

````yaml /api-reference/platform-apis/openapi/v1.json patch /assets/collections/{collection_id}
openapi: 3.1.0
info:
  title: Platform APIs
  version: v1
  description: fal REST API for programmatic access to platform resources.
servers:
  - url: https://api.fal.ai/v1
    description: Production server
security: []
paths:
  /assets/collections/{collection_id}:
    patch:
      tags:
        - Assets
      summary: Update asset collection
      description: Update asset collection for the authenticated user's fal Assets library.
      operationId: updateAssetCollection
      parameters:
        - schema:
            type: string
            minLength: 1
            description: Collection ID
            example: d8b6elcregj72v34jr8g
          required: true
          description: Collection ID
          name: collection_id
          in: path
        - schema:
            type: string
            description: Optional idempotency key for safe request retries
            example: 550e8400-e29b-41d4-a716-446655440000
          required: false
          description: Optional idempotency key for safe request retries
          name: Idempotency-Key
          in: header
      requestBody:
        required: true
        content:
          application/json:
            schema:
              type: object
              properties:
                name:
                  type: string
                  minLength: 1
                  maxLength: 255
                  description: Collection display name
                description:
                  type:
                    - string
                    - 'null'
                  description: Optional collection description
                icon:
                  type:
                    - string
                    - 'null'
                  description: Optional collection icon
                color:
                  type:
                    - string
                    - 'null'
                  description: Optional collection color
                cover_image_url:
                  type:
                    - string
                    - 'null'
                  format: uri
                  description: Optional fal-hosted cover image URL for the collection
                filters:
                  description: Assets filter DSL
            example:
              name: Updated campaign concepts
              description: Updated reusable campaign imagery
      responses:
        '200':
          description: Collection updated
          content:
            application/json:
              schema:
                type: object
                properties:
                  collection:
                    type: object
                    properties:
                      id:
                        type: string
                        description: Collection ID
                      type:
                        type: string
                        enum:
                          - manual
                          - smart
                          - character
                        description: Collection type
                      name:
                        type: string
                        description: Collection display name
                      description:
                        type:
                          - string
                          - 'null'
                        description: Collection description
                      icon:
                        type:
                          - string
                          - 'null'
                        description: Optional collection icon
                      color:
                        type:
                          - string
                          - 'null'
                        description: Optional collection color
                      cover_image_url:
                        type:
                          - string
                          - 'null'
                        description: Optional cover image URL for the collection
                      character_identifier:
                        type:
                          - string
                          - 'null'
                        description: >-
                          Character @mention identifier for character
                          collections
                      is_favorited:
                        type: boolean
                        description: Whether the collection is favorited
                      filters:
                        description: Filter DSL backing smart and character collections
                      asset_count:
                        type:
                          - number
                          - 'null'
                        description: >-
                          Exact asset count when available; null for
                          smart/character collections
                      created_at:
                        type: string
                        description: Collection creation time
                      updated_at:
                        type: string
                        description: Collection update time
                    required:
                      - id
                      - type
                      - name
                      - description
                      - icon
                      - color
                      - cover_image_url
                      - character_identifier
                      - is_favorited
                      - created_at
                      - updated_at
                    description: Asset collection
                required:
                  - collection
              example:
                collection:
                  id: d8b6elcregj72v34jr8g
                  type: manual
                  name: Campaign concepts
                  description: Reusable campaign imagery
                  icon: folder
                  color: blue
                  cover_image_url: >-
                    https://v3b.fal.media/files/b/0a9b4900/PDbTGyzqRh1aijW2WQiY9_opengraph-1%20%281%29.png
                  character_identifier: null
                  is_favorited: false
                  filters: null
                  created_at: '2026-05-23T20:00:00.000Z'
                  updated_at: '2026-05-23T20:00:00.000Z'
        '400':
          description: Invalid request parameters
          content:
            application/json:
              schema:
                type: object
                properties:
                  error:
                    type: object
                    properties:
                      type:
                        type: string
                        enum:
                          - authorization_error
                          - validation_error
                          - not_found
                          - rate_limited
                          - server_error
                          - not_implemented
                        description: The category of error that occurred
                      message:
                        type: string
                        description: Human-readable error message
                      docs_url:
                        type: string
                        format: uri
                        description: Link to relevant documentation
                      request_id:
                        type: string
                        description: Unique request identifier for debugging
                    required:
                      - type
                      - message
                    description: Error details
                required:
                  - error
                description: Standard error response format
              example:
                error:
                  type: validation_error
                  message: Invalid request parameters
        '401':
          description: Authentication required
          content:
            application/json:
              schema:
                type: object
                properties:
                  error:
                    type: object
                    properties:
                      type:
                        type: string
                        enum:
                          - authorization_error
                          - validation_error
                          - not_found
                          - rate_limited
                          - server_error
                          - not_implemented
                        description: The category of error that occurred
                      message:
                        type: string
                        description: Human-readable error message
                      docs_url:
                        type: string
                        format: uri
                        description: Link to relevant documentation
                      request_id:
                        type: string
                        description: Unique request identifier for debugging
                    required:
                      - type
                      - message
                    description: Error details
                required:
                  - error
                description: Standard error response format
              example:
                error:
                  type: authorization_error
                  message: Authentication required
        '403':
          description: Access denied
          content:
            application/json:
              schema:
                type: object
                properties:
                  error:
                    type: object
                    properties:
                      type:
                        type: string
                        enum:
                          - authorization_error
                          - validation_error
                          - not_found
                          - rate_limited
                          - server_error
                          - not_implemented
                        description: The category of error that occurred
                      message:
                        type: string
                        description: Human-readable error message
                      docs_url:
                        type: string
                        format: uri
                        description: Link to relevant documentation
                      request_id:
                        type: string
                        description: Unique request identifier for debugging
                    required:
                      - type
                      - message
                    description: Error details
                required:
                  - error
                description: Standard error response format
              example:
                error:
                  type: authorization_error
                  message: Access denied
        '404':
          description: Resource not found
          content:
            application/json:
              schema:
                type: object
                properties:
                  error:
                    type: object
                    properties:
                      type:
                        type: string
                        enum:
                          - authorization_error
                          - validation_error
                          - not_found
                          - rate_limited
                          - server_error
                          - not_implemented
                        description: The category of error that occurred
                      message:
                        type: string
                        description: Human-readable error message
                      docs_url:
                        type: string
                        format: uri
                        description: Link to relevant documentation
                      request_id:
                        type: string
                        description: Unique request identifier for debugging
                    required:
                      - type
                      - message
                    description: Error details
                required:
                  - error
                description: Standard error response format
              example:
                error:
                  type: not_found
                  message: Resource not found
        '409':
          description: Invalid request parameters
          content:
            application/json:
              schema:
                type: object
                properties:
                  error:
                    type: object
                    properties:
                      type:
                        type: string
                        enum:
                          - authorization_error
                          - validation_error
                          - not_found
                          - rate_limited
                          - server_error
                          - not_implemented
                        description: The category of error that occurred
                      message:
                        type: string
                        description: Human-readable error message
                      docs_url:
                        type: string
                        format: uri
                        description: Link to relevant documentation
                      request_id:
                        type: string
                        description: Unique request identifier for debugging
                    required:
                      - type
                      - message
                    description: Error details
                required:
                  - error
                description: Standard error response format
              example:
                error:
                  type: validation_error
                  message: Invalid request parameters
        '422':
          description: Invalid request parameters
          content:
            application/json:
              schema:
                type: object
                properties:
                  error:
                    type: object
                    properties:
                      type:
                        type: string
                        enum:
                          - authorization_error
                          - validation_error
                          - not_found
                          - rate_limited
                          - server_error
                          - not_implemented
                        description: The category of error that occurred
                      message:
                        type: string
                        description: Human-readable error message
                      docs_url:
                        type: string
                        format: uri
                        description: Link to relevant documentation
                      request_id:
                        type: string
                        description: Unique request identifier for debugging
                    required:
                      - type
                      - message
                    description: Error details
                required:
                  - error
                description: Standard error response format
              example:
                error:
                  type: validation_error
                  message: Invalid request parameters
        '429':
          description: Rate limit exceeded
          content:
            application/json:
              schema:
                type: object
                properties:
                  error:
                    type: object
                    properties:
                      type:
                        type: string
                        enum:
                          - authorization_error
                          - validation_error
                          - not_found
                          - rate_limited
                          - server_error
                          - not_implemented
                        description: The category of error that occurred
                      message:
                        type: string
                        description: Human-readable error message
                      docs_url:
                        type: string
                        format: uri
                        description: Link to relevant documentation
                      request_id:
                        type: string
                        description: Unique request identifier for debugging
                    required:
                      - type
                      - message
                    description: Error details
                required:
                  - error
                description: Standard error response format
              example:
                error:
                  type: rate_limited
                  message: Rate limit exceeded
        '500':
          description: Internal server error
          content:
            application/json:
              schema:
                type: object
                properties:
                  error:
                    type: object
                    properties:
                      type:
                        type: string
                        enum:
                          - authorization_error
                          - validation_error
                          - not_found
                          - rate_limited
                          - server_error
                          - not_implemented
                        description: The category of error that occurred
                      message:
                        type: string
                        description: Human-readable error message
                      docs_url:
                        type: string
                        format: uri
                        description: Link to relevant documentation
                      request_id:
                        type: string
                        description: Unique request identifier for debugging
                    required:
                      - type
                      - message
                    description: Error details
                required:
                  - error
                description: Standard error response format
              example:
                error:
                  type: server_error
                  message: An unexpected error occurred
        '502':
          description: Upstream asset service error
          content:
            application/json:
              schema:
                type: object
                properties:
                  error:
                    type: object
                    properties:
                      type:
                        type: string
                        enum:
                          - authorization_error
                          - validation_error
                          - not_found
                          - rate_limited
                          - server_error
                          - not_implemented
                        description: The category of error that occurred
                      message:
                        type: string
                        description: Human-readable error message
                      docs_url:
                        type: string
                        format: uri
                        description: Link to relevant documentation
                      request_id:
                        type: string
                        description: Unique request identifier for debugging
                    required:
                      - type
                      - message
                    description: Error details
                required:
                  - error
                description: Standard error response format
              example:
                error:
                  type: server_error
                  message: Upstream asset service failed
      security:
        - apiKey: []
components:
  securitySchemes:
    apiKey:
      type: apiKey
      in: header
      name: Authorization
      description: >-
        API key must be prefixed with "Key ", e.g. Authorization: Key
        YOUR_API_KEY

````