Contra · Authentication Profile

Contra Authentication

Authentication

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

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Methods: apiKey, oauth2 Schemes: 2 OAuth flows: authorizationCode API key in: header

Security Schemes

PublicApiKey apiKey

· in: header (X-API-Key)

McpOAuth2 oauth2

scheme: OAuth 2.1 authorization_code + PKCE (S256/plain)

Source

Authentication Profile

generated: '2026-07-18'
method: searched
source: >-
  github.com/contra/contra-sdk (src/client.ts, contra-open-api.json), live
  401 from https://contra.com/public-api/*, and the OAuth discovery surface
  at https://contra.com/.well-known/*
summary:
  types:
  - apiKey
  - oauth2
  api_key_in:
  - header
  oauth2_flows:
  - authorizationCode
schemes:
- name: PublicApiKey
  type: apiKey
  in: header
  parameter: X-API-Key
  applies_to: Contra Public API (https://contra.com/public-api/*)
  notes: >-
    The @contra/webflow SDK sends the key in both the X-API-Key and
    Authorization headers. An unauthenticated request returns HTTP 401
    {"code":"Unauthorized","message":"Missing or malformed API key"}.
  sources:
  - openapi/contra-openapi-original.json
- name: McpOAuth2
  type: oauth2
  scheme: OAuth 2.1 authorization_code + PKCE (S256/plain)
  applies_to: Contra MCP server (https://contra.com/mcp)
  issuer: https://contra.com/api
  authorization_url: https://contra.com/api/mcp/oauth/authorize
  token_url: https://contra.com/api/mcp/oauth/token
  registration_url: https://contra.com/api/mcp/oauth/register
  dynamic_client_registration: true
  scopes:
  - mcp:tools
  sources:
  - well-known/contra-openid-configuration.json
  - well-known/contra-oauth-protected-resource-mcp.json

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