generated: '2026-09-19'
method: searched
source: live probe of /.well-known/ on cumbuca.com and mcp.cumbuca.com
hosts:
- host: https://www.cumbuca.com
  documents:
  - path: /.well-known/security.txt
    status: 200
    file: cumbuca-security.txt
  - path: /.well-known/api-catalog
    status: 404
  - path: /.well-known/ai-plugin.json
    status: 404
- host: https://mcp.cumbuca.com
  documents:
  - path: /.well-known/oauth-protected-resource
    status: 200
    file: cumbuca-oauth-protected-resource.json
  - path: /.well-known/oauth-authorization-server
    status: 200
    file: cumbuca-oauth-authorization-server.json
    note: 301 redirect to https://idc.cumbuca.com/realms/cumbuca-mcp/.well-known/oauth-authorization-server
  - path: /.well-known/openid-configuration
    status: 404
- host: https://idc.cumbuca.com
  documents:
  - path: /realms/cumbuca-mcp/.well-known/oauth-authorization-server
    status: 200
    file: cumbuca-idc-oauth-authorization-server.json
    bytes: 6759
  path_echo_control: passed
notes: 'The Open Finance Data MCP server at mcp.cumbuca.com is an OAuth 2.0 protected resource (RFC 9728)
  whose authorization server is a Keycloak realm at idc.cumbuca.com/realms/cumbuca-mcp. Access tokens
  are mTLS certificate-bound.

  '
x-mcp-probe:
  probed: '2026-09-19'
  issue: roadmap#321, roadmap#337
  documents:
  - host: https://idc.cumbuca.com
    path: /realms/cumbuca-mcp/.well-known/oauth-authorization-server
    file: cumbuca-idc-oauth-authorization-server.json
  validated_on: resource (RFC 9728) / issuer (RFC 8414, OIDC)
  negative_control: one per host; a 2xx JSON object at an impossible path discards the host
note: 'MCP-host OAuth discovery added 2026-09-19 (roadmap#321/#337): the harvest visits a provider''s
  primary hosts, and RFC 9728 protected-resource metadata lives on the MCP host, so these documents existed
  and were invisible to the scorer. Fetched live and validated on `resource`/`issuer`; one negative control
  per host.'