openapi: 3.1.0
info:
  title: Bandcamp Account OAuth API
  version: 1.0.0
  description: Bandcamp's gated artist/label/merch-fulfillment API. Provides account, sales reporting, and merchandise order management endpoints. Access is granted on request and uses OAuth 2.0 (client credentials grant) with one-hour access tokens that may be refreshed. All API requests use POST with a Bearer token in the Authorization header.
  contact:
    name: Bandcamp Developer
    url: https://bandcamp.com/developer
servers:
- url: https://bandcamp.com
  description: Production
tags:
- name: OAuth
  description: OAuth 2.0 token issuance and refresh
paths:
  /oauth_token:
    post:
      tags:
      - OAuth
      summary: Issue or refresh an access token
      description: Obtain an access token using either the `client_credentials` grant (initial issuance) or the `refresh_token` grant (refresh an expired token). Tokens expire after one hour.
      requestBody:
        required: true
        content:
          application/x-www-form-urlencoded:
            schema:
              type: object
              required:
              - grant_type
              - client_id
              - client_secret
              properties:
                grant_type:
                  type: string
                  enum:
                  - client_credentials
                  - refresh_token
                client_id:
                  type: string
                client_secret:
                  type: string
                refresh_token:
                  type: string
                  description: Required when grant_type is `refresh_token`.
      responses:
        '200':
          description: Token response
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/TokenResponse'
components:
  schemas:
    TokenResponse:
      type: object
      properties:
        access_token:
          type: string
        token_type:
          type: string
        expires_in:
          type: integer
        refresh_token:
          type: string
  securitySchemes:
    bearerAuth:
      type: http
      scheme: bearer
      bearerFormat: JWT
      description: OAuth 2.0 access token returned by `/oauth_token`.
    oauth2:
      type: oauth2
      flows:
        clientCredentials:
          tokenUrl: https://bandcamp.com/oauth_token
          scopes: {}