Eraser Files API

openapi: 3.2.0
info:
  title: Eraser AI Requests Files API
  description: The Eraser REST API provides programmatic access to diagram generation, file management, folder management, audit logs, and team usage metrics. Developers can generate diagrams from natural language prompts or Eraser DSL, create and manage files and diagrams on the canvas, and retrieve aggregated usage metrics. API access requires a team API token and is available on Starter, Business, and Enterprise paid plans with usage-based billing for API calls beyond plan credits.
  version: v1.0
  contact:
    name: Eraser Support
    url: https://www.eraser.io/
    email: hello@eraser.io
  termsOfService: https://www.eraser.io/
servers:
- url: https://app.eraser.io
  description: Eraser API Server
security:
- bearerAuth: []
tags:
- name: Files
  description: Create and manage Eraser files
paths:
  /api/files:
    post:
      operationId: createFile
      summary: Create a new file
      description: Creates a new Eraser file with optional document content and canvas elements.
      tags:
      - Files
      externalDocs:
        description: API documentation
        url: https://docs.eraser.io/reference/create-file
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/CreateFileRequest'
      responses:
        '200':
          description: File created successfully
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/FileWithContent'
        '400':
          description: Invalid request body
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error'
        '401':
          description: Missing or invalid bearer token
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error'
        '403':
          description: Unauthorized
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error'
        '500':
          description: Internal server error
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error'
    get:
      operationId: listFiles
      summary: List files
      description: Returns a paginated list of files for the authenticated team, with optional filtering by folder, author, and sorting.
      tags:
      - Files
      externalDocs:
        description: API documentation
        url: https://docs.eraser.io/reference/list-files
      parameters:
      - name: limit
        in: query
        required: false
        description: Maximum number of files to return (1-500). Defaults to 100.
        schema:
          type: integer
          minimum: 1
          maximum: 500
          default: 100
      - name: cursor
        in: query
        required: false
        description: Cursor for pagination. Use nextCursor from a previous response.
        schema:
          type: string
      - name: folderId
        in: query
        required: false
        description: Filter files by folder ID.
        schema:
          type: string
      - name: sort
        in: query
        required: false
        description: Sort field with optional - prefix for descending order. Defaults to -updatedAt.
        schema:
          type: string
          enum:
          - createdAt
          - -createdAt
          - updatedAt
          - -updatedAt
          default: -updatedAt
      - name: author
        in: query
        required: false
        description: Filter by author (user ID or email address).
        schema:
          type: string
      responses:
        '200':
          description: Files retrieved successfully
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/FileList'
        '400':
          description: Invalid request parameters
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error'
        '401':
          description: Missing or invalid bearer token
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error'
        '403':
          description: Unauthorized
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error'
        '500':
          description: Internal server error
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error'
  /api/files/{fileId}:
    get:
      operationId: getFile
      summary: Get a file
      description: Retrieves a specific file by ID, including its content and canvas elements.
      tags:
      - Files
      externalDocs:
        description: API documentation
        url: https://docs.eraser.io/reference/get-file
      parameters:
      - name: fileId
        in: path
        required: true
        description: ID of the file to retrieve
        schema:
          type: string
      responses:
        '200':
          description: File retrieved successfully
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/FileWithContent'
        '400':
          description: Invalid file ID format
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error'
        '401':
          description: Missing or invalid bearer token
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error'
        '403':
          description: Unauthorized access
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error'
        '404':
          description: File not found, private, archived, template, or belongs to different team
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error'
        '500':
          description: Internal server error
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error'
    put:
      operationId: updateFile
      summary: Update a file
      description: Updates a file's title, folder location, or document content. Markdown diagram code blocks in the document are converted to embedded diagrams.
      tags:
      - Files
      externalDocs:
        description: API documentation
        url: https://docs.eraser.io/reference/update-file
      parameters:
      - name: fileId
        in: path
        required: true
        description: ID of the file to update
        schema:
          type: string
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/UpdateFileRequest'
      responses:
        '200':
          description: File updated successfully
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/FileWithContent'
        '400':
          description: Invalid file ID
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error'
        '401':
          description: Missing or invalid bearer token
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error'
        '403':
          description: Unauthorized
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error'
        '404':
          description: File not found, private, archived, template, or belongs to different team
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error'
        '500':
          description: Internal server error
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error'
    delete:
      operationId: archiveFile
      summary: Archive a file
      description: Archives (soft-deletes) a file by ID. The file can be restored through the Eraser UI afterward.
      tags:
      - Files
      externalDocs:
        description: API documentation
        url: https://docs.eraser.io/reference/archive-file
      parameters:
      - name: fileId
        in: path
        required: true
        description: ID of the file to archive
        schema:
          type: string
      responses:
        '200':
          description: File archived successfully
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ArchiveFileResponse'
        '400':
          description: Invalid file ID
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error'
        '401':
          description: Missing or invalid bearer token
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error'
        '403':
          description: Unauthorized
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error'
        '404':
          description: File not found, private, archived, template, or belongs to different team
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error'
        '500':
          description: Internal server error
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error'
components:
  schemas:
    FileWithContent:
      allOf:
      - $ref: '#/components/schemas/File'
      - type: object
        properties:
          content:
            $ref: '#/components/schemas/FileContent'
    FileContent:
      type: object
      properties:
        elements:
          type: array
          items:
            $ref: '#/components/schemas/CanvasElementWithId'
          description: Canvas elements in the file
        document:
          type: string
          description: Markdown content of the file's document
    ArchiveFileResponse:
      type: object
      required:
      - archived
      - fileUrl
      properties:
        archived:
          type: boolean
          description: Whether the file was successfully archived
        fileUrl:
          type: string
          description: URL of the archived file
    Error:
      type: object
      properties:
        error:
          type: string
          description: Error message describing what went wrong
    DiagramType:
      type: string
      enum:
      - sequence-diagram
      - entity-relationship-diagram
      - cloud-architecture-diagram
      - flowchart-diagram
      - bpmn-diagram
      description: Type of Eraser diagram
    UpdateFileRequest:
      type: object
      properties:
        title:
          type: string
          description: New title for the file
        folderId:
          type: string
          description: ID of the folder to move the file to
        document:
          type: string
          description: New markdown content. Supports diagram code blocks converted to embedded diagrams.
    CreateFileRequest:
      type: object
      properties:
        title:
          type: string
          description: Title of the file. Defaults to "Untitled".
        folderId:
          type: string
          description: Identifier for the folder destination
        document:
          type: string
          description: Markdown content for the file's document. Supports diagram code blocks.
        linkAccess:
          $ref: '#/components/schemas/LinkAccess'
        elements:
          type: array
          items:
            $ref: '#/components/schemas/CanvasElement'
          description: Canvas elements (diagrams, shapes, etc.)
    File:
      type: object
      required:
      - id
      - fileUrl
      - title
      - author
      - createdAt
      - updatedAt
      - linkAccess
      properties:
        id:
          type: string
          description: Unique file identifier
        fileUrl:
          type: string
          description: URL to view the file in Eraser
        title:
          type: string
          description: File name
        author:
          type: string
          description: Creator's user ID
        folderId:
          type:
          - string
          - 'null'
          description: Parent folder ID, or null if at root
        createdAt:
          type: string
          format: date-time
          description: ISO 8601 creation timestamp
        updatedAt:
          type: string
          format: date-time
          description: ISO 8601 last modification timestamp
        linkAccess:
          $ref: '#/components/schemas/LinkAccess'
    FileList:
      type: object
      required:
      - files
      properties:
        files:
          type: array
          items:
            $ref: '#/components/schemas/File'
        nextCursor:
          type:
          - string
          - 'null'
          description: Cursor for retrieving the next page of results
    LinkAccess:
      type: string
      enum:
      - no-link-access
      - anyone-with-link-can-edit
      - publicly-viewable
      - publicly-editable
      - sso-readable
      - sso-editable
      description: File link access permission level
    CanvasElement:
      type: object
      required:
      - type
      properties:
        type:
          type: string
          description: Element category (e.g., diagram, rectangle, ellipse)
        diagramType:
          $ref: '#/components/schemas/DiagramType'
        code:
          type: string
          description: Eraser DSL code for diagram rendering
        x:
          type: number
          description: Horizontal canvas position
        y:
          type: number
          description: Vertical canvas position
        width:
          type: number
          description: Element width
        height:
          type: number
          description: Element height
    CanvasElementWithId:
      allOf:
      - $ref: '#/components/schemas/CanvasElement'
      - type: object
        properties:
          id:
            type: string
            description: Unique element identifier
  securitySchemes:
    bearerAuth:
      type: http
      scheme: bearer
      description: Team-specific API bearer token from Eraser settings
    auditApiKey:
      type: apiKey
      in: header
      name: Authorization
      description: Audit-specific API key for accessing audit log endpoints
externalDocs:
  description: Eraser API Documentation
  url: https://docs.eraser.io/docs/eraser-api