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The endpoint exists and enforces authentication; nothing behind that boundary — tools, behaviour, service health — has been observed."},"checks":{"total":108,"ok":108,"authBoundaryOk":108,"serviceOk":0,"note":"Counted from the observation rows for the window, checks of the server only (HTTP, A2A card, MCP initialize). ok = authBoundaryOk + serviceOk. `probes` is the sum of daily rollups and includes registry checks, so it can differ from `total`."}},"latestObservations":[{"at":"2026-10-10T04:31:32.298Z","kind":"mcp_initialize","ok":true,"httpStatus":401,"latencyMs":257,"error":null,"detail":{"authRequired":true,"wwwAuthenticate":"Bearer error=\"invalid_token\", error_description=\"No authorization provided\", resource_metadata=\"https://mcp.senderkit.com/.well-known/oauth-protected-resource\""}},{"at":"2026-10-09T21:27:19.244Z","kind":"mcp_initialize","ok":true,"httpStatus":401,"latencyMs":192,"error":null,"detail":{"authRequired":true,"wwwAuthenticate":"Bearer error=\"invalid_token\", 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error_description=\"No authorization provided\", resource_metadata=\"https://mcp.senderkit.com/.well-known/oauth-protected-resource\""}},{"at":"2026-10-08T18:28:35.998Z","kind":"mcp_initialize","ok":true,"httpStatus":401,"latencyMs":167,"error":null,"detail":{"authRequired":true,"wwwAuthenticate":"Bearer error=\"invalid_token\", error_description=\"No authorization provided\", resource_metadata=\"https://mcp.senderkit.com/.well-known/oauth-protected-resource\""}},{"at":"2026-10-08T12:25:59.575Z","kind":"mcp_initialize","ok":true,"httpStatus":401,"latencyMs":196,"error":null,"detail":{"authRequired":true,"wwwAuthenticate":"Bearer error=\"invalid_token\", error_description=\"No authorization provided\", resource_metadata=\"https://mcp.senderkit.com/.well-known/oauth-protected-resource\""}},{"at":"2026-10-08T05:21:38.219Z","kind":"mcp_initialize","ok":true,"httpStatus":401,"latencyMs":205,"error":null,"detail":{"authRequired":true,"wwwAuthenticate":"Bearer error=\"invalid_token\", error_description=\"No authorization provided\", resource_metadata=\"https://mcp.senderkit.com/.well-known/oauth-protected-resource\""}},{"at":"2026-10-07T23:24:42.043Z","kind":"mcp_initialize","ok":true,"httpStatus":401,"latencyMs":952,"error":null,"detail":{"authRequired":true,"wwwAuthenticate":"Bearer error=\"invalid_token\", error_description=\"No authorization provided\", resource_metadata=\"https://mcp.senderkit.com/.well-known/oauth-protected-resource\""}},{"at":"2026-10-07T16:29:14.564Z","kind":"mcp_initialize","ok":true,"httpStatus":401,"latencyMs":219,"error":null,"detail":{"authRequired":true,"wwwAuthenticate":"Bearer error=\"invalid_token\", error_description=\"No authorization provided\", resource_metadata=\"https://mcp.senderkit.com/.well-known/oauth-protected-resource\""}}],"tools":null,"package":null,"toolSurface":null,"endpointFacts":[{"id":"ep_3ptrs6wzckuh","url":"https://mcp.senderkit.com","type":"mcp_streamable_http","factsCheckedAt":"2026-10-03T03:20:50.688Z","auth":{"observedAt":"2026-10-03T03:20:51.138Z","authRequired":true,"scheme":"Bearer","resourceMetadata":{"url":"https://mcp.senderkit.com/.well-known/oauth-protected-resource","resource":"https://mcp.senderkit.com","authorizationServers":["https://www.senderkit.com"],"scopesSupported":["openid","offline_access"]},"authorizationServer":{"url":"https://www.senderkit.com/.well-known/oauth-authorization-server","issuer":"https://www.senderkit.com","grantTypesSupported":["authorization_code","refresh_token"],"codeChallengeMethodsSupported":["S256"],"tokenEndpointAuthMethodsSupported":["client_secret_basic","client_secret_post","none"],"dynamicClientRegistration":true,"dpopSigningAlgValuesSupported":[],"clientIdMetadataDocumentSupported":null},"conformance":{"dpop":false,"rfc8414":true,"rfc9728":true,"pkceS256":true,"clientIdMetadataDocument":false,"dynamicClientRegistration":true}},"tls":{"observedAt":"2026-10-03T03:20:51.182Z","protocol":"TLSv1.3","chainValid":true,"chainError":null,"hostMatches":true,"subject":"mcp.senderkit.com","issuer":{"commonName":"YR2","organization":"Let's 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