Paperplane Authentication

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.