{"domain":"modelcontextprotocol.io","origin":"https://modelcontextprotocol.io","probedAt":"2026-09-01T14:15:48.126Z","callabilityProbedAt":"2026-09-01T15:06:51.819Z","reachable":true,"ucp":null,"fixes":[{"id":"ucp.missing","protocol":"ucp","problem":"No machine UCP profile at /.well-known/ucp.","fix":"Publish JSON with a YYYY-MM-DD version, services, capabilities, and payment_handlers.","spec":"https://ucp.dev"},{"id":"x402.missing","protocol":"x402","problem":"No x402 challenge on the homepage or /.well-known/x402.","fix":"If you sell machine calls, return HTTP 402 with a PAYMENT-REQUIRED header. Vokko never sends PAYMENT-SIGNATURE to you.","spec":"https://www.x402.org"},{"id":"mpp.missing","protocol":"mpp","problem":"No WWW-Authenticate: Payment challenge on the observed GETs.","fix":"If you speak MPP, challenge with WWW-Authenticate: Payment. There is no public /.well-known/mpp.","spec":"https://docs.stripe.com"},{"id":"tap.missing","protocol":"tap","problem":"No HTTP Message Signatures directory.","fix":"GET /.well-known/http-message-signatures-directory should return JSON 200 if you speak TAP.","spec":"https://corporate.visa.com"},{"id":"openapi.missing","protocol":"openapi","problem":"No OpenAPI document at the usual paths.","fix":"Publish /openapi.json (or /.well-known/openapi.json) if you have an HTTP API.","spec":"https://www.openapis.org"}],"protocols":[{"id":"ucp","status":"absent","version":null,"details":{}},{"id":"acp","status":"undiscoverable","version":null,"details":{"spec":"https://www.agenticcommerce.dev/","reason":"acp_has_no_public_well_known"}},{"id":"ap2","status":"absent","version":null,"details":{}},{"id":"tap","status":"absent","version":null,"details":{}},{"id":"mcp","status":"present","version":null,"details":{"keys":["version","transport","url","servers"],"endpoint":"https://mcp.main-kill-isr.mintlify.me/mcp"}},{"id":"a2a","status":"present","version":null,"details":{"name":"Model Context Protocol","skills":[{"id":"draft-sep","name":"draft-sep"},{"id":"search-mcp-github","name":"search-mcp-github"}],"interfaceStatus":200}},{"id":"x402","status":"absent","version":null,"details":{}},{"id":"mpp","status":"absent","version":null,"details":{"note":"no_public_well_known"}},{"id":"llms","status":"present","version":null,"details":{"bytes":8192}},{"id":"ai-plugin","status":"absent","version":null,"details":{}},{"id":"openapi","status":"absent","version":null,"details":{}}]}