generated: '2026-08-13' method: probed source: https://clerk.paperplane.ai/.well-known/openid-configuration scope_note: >- Paperplane publishes no public developer API and no OpenAPI, so there is no spec securitySchemes block to derive from. This profile is read verbatim from the live OIDC discovery document and the RFC 8414 OAuth 2.0 Authorization Server Metadata document served at clerk.paperplane.ai — Paperplane's own Clerk-hosted identity instance (issuer https://clerk.paperplane.ai, instance ins_2eXpXIGIP45PViegvGGdEfVfHcf, CNAME frontend-api.clerk.services). This documents how identities authenticate to the Paperplane application, NOT how a third-party developer would authenticate against a public Paperplane API, because no such API is published. Note also that the application this identity server fronts is currently offline (app.paperplane.ai returns Vercel 402 DEPLOYMENT_DISABLED) — see lifecycle/paperplane-lifecycle.yml. schemes: - id: paperplane-clerk-oidc type: openIdConnect name: Clerk-hosted OpenID Connect issuer: https://clerk.paperplane.ai openid_connect_url: https://clerk.paperplane.ai/.well-known/openid-configuration oauth_metadata_url: https://clerk.paperplane.ai/.well-known/oauth-authorization-server endpoints: authorization: https://clerk.paperplane.ai/oauth/authorize token: https://clerk.paperplane.ai/oauth/token revocation: https://clerk.paperplane.ai/oauth/token/revoke introspection: https://clerk.paperplane.ai/oauth/token_info userinfo: https://clerk.paperplane.ai/oauth/userinfo jwks: https://clerk.paperplane.ai/.well-known/jwks.json flows: - authorization_code - refresh_token pkce: required: unknown code_challenge_methods: - S256 response_types: - code response_modes: - form_post - query token_endpoint_auth_methods: - client_secret_basic - client_secret_post - none id_token_signing_alg: - RS256 subject_types: - public claims: - sub - iss - aud - exp - iat - name - given_name - family_name - preferred_username - picture - email - email_verified - org_id scopes_ref: scopes/paperplane-scopes.yml logout: backchannel_supported: false frontchannel_supported: false api_key_auth: none-published mutual_tls: none-published docs: null docs_note: >- Paperplane publishes no authentication documentation of its own. The GitBook documentation site at docs.paperplane.ai is an unfilled GitBook starter template (lorem ipsum bodies, "Awesome Feature One", last updated three years ago) and contains no auth page. The only prose reference the discovery document itself carries is Clerk's generic https://clerk.com/docs/oauth/scoped-access, which is the vendor's documentation, not Paperplane's.