PropelAuth MCP OAuth 2.1 API

openapi: 3.1.0
info:
  title: PropelAuth End-User API Keys Access Tokens MCP OAuth 2.1 API
  description: 'Backend REST API for validating, issuing, listing, and revoking API keys that PropelAuth

    manages on behalf of your end users and tenant organizations. API keys can be scoped to a

    personal user, an organization, or imported from a legacy auth system. All endpoints

    require a PropelAuth Backend Integration API key.

    '
  version: 1.0.0
  contact:
    name: PropelAuth Support
    url: https://www.propelauth.com
    email: support@propelauth.com
  license:
    name: PropelAuth Terms
    url: https://www.propelauth.com/legal/terms-of-service
servers:
- url: https://{authId}.propelauthtest.com
  description: Test environment
  variables:
    authId:
      default: '0000000000'
- url: https://auth.example.com
  description: Production / Staging custom domain
security:
- BackendApiKey: []
tags:
- name: MCP OAuth 2.1
  description: OAuth 2.1 flows for MCP clients
paths:
  /oauth/2.1/authorize:
    get:
      summary: MCP Authorize
      description: Begin an OAuth 2.1 authorization code flow with PKCE for an MCP client.
      operationId: mcpAuthorize
      tags:
      - MCP OAuth 2.1
      parameters:
      - name: response_type
        in: query
        required: true
        schema:
          type: string
          enum:
          - code
      - name: client_id
        in: query
        required: true
        schema:
          type: string
      - name: redirect_uri
        in: query
        required: true
        schema:
          type: string
          format: uri
      - name: scope
        in: query
        schema:
          type: string
          example: read:user_data tools:execute
      - name: state
        in: query
        schema:
          type: string
      - name: code_challenge
        in: query
        required: true
        schema:
          type: string
      - name: code_challenge_method
        in: query
        required: true
        schema:
          type: string
          enum:
          - S256
      responses:
        '302':
          description: Redirect to login or to redirect_uri with authorization code
  /oauth/2.1/token:
    post:
      summary: MCP Token
      description: Exchange an authorization code for tokens, or refresh an existing token.
      operationId: mcpToken
      tags:
      - MCP OAuth 2.1
      requestBody:
        required: true
        content:
          application/x-www-form-urlencoded:
            schema:
              type: object
              required:
              - grant_type
              - client_id
              properties:
                grant_type:
                  type: string
                  enum:
                  - authorization_code
                  - refresh_token
                code:
                  type: string
                redirect_uri:
                  type: string
                  format: uri
                refresh_token:
                  type: string
                client_id:
                  type: string
                client_secret:
                  type: string
                code_verifier:
                  type: string
      responses:
        '200':
          description: Token issued
          content:
            application/json:
              schema:
                type: object
                properties:
                  access_token:
                    type: string
                  refresh_token:
                    type: string
                  token_type:
                    type: string
                  expires_in:
                    type: integer
                  scope:
                    type: string
  /oauth/2.1/introspect:
    post:
      summary: MCP Introspect
      description: Validate an access token and return associated user, organization, and scope information.
      operationId: mcpIntrospect
      tags:
      - MCP OAuth 2.1
      requestBody:
        required: true
        content:
          application/x-www-form-urlencoded:
            schema:
              type: object
              required:
              - token
              properties:
                token:
                  type: string
                token_type_hint:
                  type: string
                  enum:
                  - access_token
                  - refresh_token
      responses:
        '200':
          description: Introspection result
          content:
            application/json:
              schema:
                type: object
                properties:
                  active:
                    type: boolean
                  scope:
                    type: string
                  client_id:
                    type: string
                  username:
                    type: string
                  sub:
                    type: string
                  exp:
                    type: integer
                  iat:
                    type: integer
                  org_id:
                    type: string
                    format: uuid
                  org_role:
                    type: string
components:
  securitySchemes:
    BackendApiKey:
      type: http
      scheme: bearer