Definite · Authentication Profile

Definite Authentication

Authentication

Definite secures its APIs with http and oauth2 across 3 declared security schemes, as derived from its OpenAPI definitions. OAuth 2.0 is offered via the authorizationCode flow(s).

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Methods: http, oauth2 Schemes: 3 OAuth flows: authorizationCode API key in:

Security Schemes

apiKeyBearer http

scheme: bearer

oauth2Mcp oauth2

· flows: authorizationCode

sso openIdConnect

Source

Authentication Profile

generated: '2026-07-18'
method: searched
source: https://www.definite.app/docs/definite-api
docs:
- https://www.definite.app/docs/definite-api
- https://www.definite.app/docs/mcp/mcp
- https://www.definite.app/security
summary:
  types: [http, oauth2]
  http_schemes: [bearer]
  oauth2_flows: [authorizationCode]
  sso: [SAML, OIDC, Google Workspace]
schemes:
- name: apiKeyBearer
  type: http
  scheme: bearer
  location: header
  header: Authorization
  format: '{user_id}-{api_key_suffix}'
  note: >-
    Primary REST API auth. Send "Authorization: Bearer <API_KEY>". API keys are
    created/copied from the bottom-left user menu in the Definite app. Used
    across the v1 REST API, v3 MCP HTTP endpoint, and v4 webhook endpoints.
- name: oauth2Mcp
  type: oauth2
  flows:
  - flow: authorizationCode
    authorizationUrl: https://api.definite.app/oauth/authorize
    tokenUrl: https://api.definite.app/oauth/token
    pkce: S256
    scopes:
      mcp: Access the Definite MCP server tools.
  source: /.well-known/oauth-authorization-server
  note: >-
    OAuth 2.1 authorization-code + PKCE flow advertised for MCP clients;
    refresh_token grant supported; token_endpoint_auth_methods_supported none
    (public client).
- name: sso
  type: openIdConnect
  note: >-
    Enterprise SSO via SAML / OIDC (Google Workspace) for app + on-prem sign-in;
    documented on the security page and on-prem SSO docs.

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