generated: '2026-08-05'
method: searched
source: https://api.read.ai/.well-known/oauth-protected-resource/mcp
description: >-
  Well-known discovery surface probed across every Read AI host. The MCP resource
  server (api.read.ai) publishes RFC 9728 protected-resource metadata; the identity
  host (authn.read.ai) publishes full OIDC + RFC 8414 authorization-server metadata
  and a JWKS. The marketing host serves an "Invalid .well-known request" 404 page for
  every /.well-known/* path, and the SPA host app.read.ai answers 200 with the HTML
  app shell for every /.well-known/* path (rejected as a catch-all false positive).
hosts:
  - host: https://api.read.ai
    documents:
      - path: /.well-known/oauth-protected-resource/mcp
        status: 200
        file: read-ai-oauth-protected-resource-mcp.json
        standard: RFC 9728 OAuth 2.0 Protected Resource Metadata
      - path: /.well-known/oauth-protected-resource
        status: 404
      - path: /.well-known/oauth-authorization-server
        status: 404
      - path: /.well-known/openid-configuration
        status: 404
      - path: /.well-known/security.txt
        status: 404
      - path: /.well-known/agent-card.json
        status: 404
      - path: /.well-known/agent.json
        status: 404
  - host: https://authn.read.ai
    documents:
      - path: /.well-known/openid-configuration
        status: 200
        file: read-ai-openid-configuration.json
        standard: OpenID Connect Discovery 1.0
      - path: /.well-known/oauth-authorization-server
        status: 200
        file: read-ai-oauth-authorization-server.json
        standard: RFC 8414 OAuth 2.0 Authorization Server Metadata
      - path: /.well-known/jwks.json
        status: 200
        note: >-
          Live JWKS with two RS256 signing keys. Not mirrored into this repo — key
          material rotates and the live endpoint is the source of truth.
  - host: https://www.read.ai
    documents:
      - path: /.well-known/security.txt
        status: 404
      - path: /.well-known/api-catalog
        status: 404
      - path: /.well-known/ai-plugin.json
        status: 404
      - path: /.well-known/agent-card.json
        status: 404
      - path: /.well-known/agent.json
        status: 404
      - path: /llms.txt
        status: 200
        note: Saved verbatim to llms/read-ai-llms.txt
  - host: https://app.read.ai
    documents:
      - path: /.well-known/agent-card.json
        status: 200
        accepted: false
        reason: >-
          Single-page-app catch-all — body is the React index.html shell
          (content-type text/html), not JSON. Not an agent card.
      - path: /.well-known/security.txt
        status: 200
        accepted: false
        reason: Same SPA catch-all HTML shell.
x-evidence:
  fetched: '2026-08-05'
  method: HTTP GET, anonymous, no credentials