curl --request GET \
  --url https://api.example.com/v1/mcp/openid-configuration

{
  "issuer": "<string>",
  "authorization_endpoint": "<string>",
  "token_endpoint": "<string>",
  "userinfo_endpoint": "<string>",
  "registration_endpoint": "<string>",
  "response_types_supported": [
    "<string>"
  ],
  "grant_types_supported": [
    "<string>"
  ],
  "subject_types_supported": [
    "<string>"
  ],
  "id_token_signing_alg_values_supported": [
    "<string>"
  ],
  "token_endpoint_auth_methods_supported": [
    "<string>"
  ],
  "scopes_supported": [
    "<string>"
  ],
  "claims_supported": [
    "<string>"
  ],
  "code_challenge_methods_supported": [
    "<string>"
  ]
}