generated: '2026-07-18'
method: searched
source: https://clerk.getduckbill.com/.well-known/openid-configuration
docs: https://getduckbill.com/platform
notes: >-
  Duckbill has no public REST OpenAPI to derive from. Its programmatic surface
  (the "Connect to Claude" MCP integration and platform/API access) authenticates
  through an OAuth 2.0 / OpenID Connect authorization server hosted by Clerk on
  Duckbill's own subdomain clerk.getduckbill.com. End-user app auth is also Clerk.
summary:
  types: [oauth2, openIdConnect]
  oauth2_flows: [authorizationCode]
  pkce: true
  identity_provider: Clerk (clerk.getduckbill.com)
schemes:
- name: OpenIDConnect
  type: openIdConnect
  openIdConnectUrl: https://clerk.getduckbill.com/.well-known/openid-configuration
  issuer: https://clerk.getduckbill.com
  sources: [well-known/duckbill-openid-configuration.json]
- name: OAuth2
  type: oauth2
  flows:
  - flow: authorizationCode
    authorizationUrl: https://clerk.getduckbill.com/oauth/authorize
    tokenUrl: https://clerk.getduckbill.com/oauth/token
    revocationUrl: https://clerk.getduckbill.com/oauth/token/revoke
    userinfoUrl: https://clerk.getduckbill.com/oauth/userinfo
    introspectionUrl: https://clerk.getduckbill.com/oauth/token_info
    pkce_methods: [S256]
  token_endpoint_auth_methods: [client_secret_basic, client_secret_post, none]
  sources: [well-known/duckbill-oauth-authorization-server.json]