openapi: 3.1.0
info:
  title: Itch.io Auth Users API
  description: The itch.io server-side API provides authenticated access to user profiles, uploaded games, download key validation, purchase lookup, and build version retrieval. Authentication is via API key or short-lived JWT tokens using the Authorization Bearer header. Responses are JSON with snake_case naming and RFC 3339 dates.
  version: 1.0.0
  contact:
    name: Itch.io Support
    url: https://itch.io/support
  license:
    name: Proprietary
    url: https://itch.io/docs/legal/terms
servers:
- url: https://api.itch.io
  description: Itch.io API Server
security:
- bearerAuth: []
tags:
- name: Users
  description: User lookup operations
paths:
  /users/{userId}:
    get:
      operationId: getUser
      summary: Get user
      description: Retrieves info about a single user by ID.
      tags:
      - Users
      parameters:
      - name: userId
        in: path
        required: true
        schema:
          type: integer
          format: int64
      responses:
        '200':
          description: Successful response
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/GetUserResponse'
        '404':
          $ref: '#/components/responses/NotFound'
components:
  schemas:
    User:
      type: object
      description: Represents an itch.io account with basic profile info
      properties:
        id:
          type: integer
          format: int64
          description: Site-wide unique identifier generated by itch.io
        username:
          type: string
          description: The user's username (used for login)
        displayName:
          type: string
          description: The user's display name; may contain spaces and unicode characters
        developer:
          type: boolean
          description: Has the user opted into creating games?
        pressUser:
          type: boolean
          description: Is the user part of itch.io's press program?
        url:
          type: string
          format: uri
          description: The address of the user's page on itch.io
        coverUrl:
          type: string
          format: uri
          description: User's avatar URL; may be a GIF
        stillCoverUrl:
          type: string
          format: uri
          description: Static version of user's avatar; only set if the main cover URL is a GIF
    GetUserResponse:
      type: object
      properties:
        user:
          $ref: '#/components/schemas/User'
    ErrorResponse:
      type: object
      properties:
        errors:
          type: array
          items:
            type: string
  responses:
    NotFound:
      description: Resource not found
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/ErrorResponse'
  securitySchemes:
    bearerAuth:
      type: http
      scheme: bearer
      description: API key or JWT token issued by itch.io