Alien · Authentication Profile

Alien Authentication

Authentication

Alien secures its APIs with oauth2 and openIdConnect across 2 declared security schemes, as derived from its OpenAPI definitions. OAuth 2.0 is offered via the authorizationCode and refreshToken flow(s).

CompanyCryptoIdentityAuthenticationOAuthOpenID ConnectProof of HumanityBlockchainSolanaAgents

Methods: oauth2, openIdConnect Schemes: 2 OAuth flows: authorizationCode, refreshToken API key in:

Security Schemes

AlienSSO openIdConnect

OAuth2 oauth2

· flows: authorizationCode

Source

Authentication Profile

generated: '2026-07-17'
method: searched
source: https://sso.alien-api.com/.well-known/openid-configuration
docs: https://docs.alien.org/sso-guide/oauth2-clients
summary:
  types: [oauth2, openIdConnect]
  oauth2_flows: [authorizationCode, refreshToken]
  pkce: required
  pkce_methods: [S256]
  token_binding: DPoP (RFC 9449, EdDSA)
  client_type: public
  token_endpoint_auth_methods: [none]
schemes:
- name: AlienSSO
  type: openIdConnect
  openIdConnectUrl: https://sso.alien-api.com/.well-known/openid-configuration
  issuer: https://sso.alien-api.com
  source: https://sso.alien-api.com/.well-known/openid-configuration
- name: OAuth2
  type: oauth2
  source: https://sso.alien-api.com/.well-known/oauth-authorization-server
  flows:
  - flow: authorizationCode
    authorizationUrl: https://sso.alien-api.com/oauth/authorize
    tokenUrl: https://sso.alien-api.com/oauth/token
    scopes:
      openid: OpenID Connect authentication (proof-of-humanity subject)
  grant_types: [authorization_code, refresh_token]
notes: >-
  Alien SSO is an OpenID Connect / OAuth 2.0 identity provider that proves human
  uniqueness rather than legal identity. Public clients only (token_endpoint_auth
  none) with mandatory PKCE (S256). Access tokens may be sender-constrained with
  DPoP (RFC 9449, EdDSA). ID tokens are RS256-signed; public keys at
  https://sso.alien-api.com/oauth/jwks. Backend services verify Alien Agent ID
  tokens (Ed25519) via @alien-id/sso-agent-id. Any standard OIDC library works.