generated: '2026-09-19'
method: searched
description: Results of probing the /.well-known/ discovery surface for the Violet Labs hosts in apis.yml.
  app.violetlabs.com publishes OAuth 2.0 / OIDC discovery documents (used by the hosted MCP server's OAuth
  flow); the API and docs hosts return 404 for /.well-known/security.txt. Status is the HTTP code observed
  at fetch time; documents returning a real payload were saved verbatim.
hosts:
- host: https://app.violetlabs.com
  documents:
  - path: /.well-known/openid-configuration
    status: 200
    type: application/json
    file: violetlabs-openid-configuration.json
  - path: /.well-known/oauth-authorization-server
    status: 200
    type: application/json
    file: violetlabs-oauth-authorization-server.json
  - path: /.well-known/security.txt
    status: 404
  - path: /.well-known/api-catalog
    status: 404
- host: https://docs.violetlabs.com
  documents:
  - path: /.well-known/security.txt
    status: 404
  - path: /.well-known/ai-plugin.json
    status: 404
- host: https://www.violetlabs.com
  documents:
  - path: /.well-known/security.txt
    status: 404
- host: https://mcp.violetlabs.com
  documents:
  - path: /.well-known/oauth-protected-resource
    status: 200
    file: violetlabs-mcp-oauth-protected-resource.json
    bytes: 127
  path_echo_control: passed
notes: 'The OAuth authorization server advertises PKCE (S256), dynamic client registration (RFC 7591 registration_endpoint),
  the authorization_code, refresh_token, and client_credentials grants, and a single scope: mcp. These
  back the Violet hosted MCP server OAuth login.'
x-mcp-probe:
  probed: '2026-09-19'
  issue: roadmap#321, roadmap#337
  documents:
  - host: https://mcp.violetlabs.com
    path: /.well-known/oauth-protected-resource
    file: violetlabs-mcp-oauth-protected-resource.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.'