{"$schema":"https://wellknown.network/schemas/agent-record-v1.json","schemaVersion":"1","id":"ag_c2g6623r3km4","handle":"sdc-dcat-us-3-0-projection-sdcdcatus","url":"https://wellknown.network/agents/sdc-dcat-us-3-0-projection-sdcdcatus","links":{"self":"https://wellknown.network/agents/sdc-dcat-us-3-0-projection-sdcdcatus/record.json","html":"https://wellknown.network/agents/sdc-dcat-us-3-0-projection-sdcdcatus","markdown":"https://wellknown.network/agents/sdc-dcat-us-3-0-projection-sdcdcatus/record.md","api":"https://wellknown.network/api/v1/agents/sdc-dcat-us-3-0-projection-sdcdcatus","status":"https://wellknown.network/api/v1/agents/sdc-dcat-us-3-0-projection-sdcdcatus/status","claim":"https://wellknown.network/agents/sdc-dcat-us-3-0-projection-sdcdcatus/claim","claimApi":"https://wellknown.network/api/v1/claims","claimDescriptor":"https://wellknown.network/agents/sdc-dcat-us-3-0-projection-sdcdcatus/claim.json","badge":"https://wellknown.network/agents/sdc-dcat-us-3-0-projection-sdcdcatus/badge.svg","openapi":"https://wellknown.network/openapi.json","history":"https://wellknown.network/api/v1/agents/sdc-dcat-us-3-0-projection-sdcdcatus/history","tools":"https://wellknown.network/api/v1/agents/sdc-dcat-us-3-0-projection-sdcdcatus/tools"},"ard":{"identifier":"urn:air:wellknown.network:record:sdc-dcat-us-3-0-projection-sdcdcatus","type":"application/mcp-server-card+json"},"kind":"mcp_server","declared":{"name":"SDC DCAT-US 3.0 Projection (sdcdcatus)","summary":"DCAT-US 3.0 catalogs (data.json) of published Semantic Data Charter models: one Dataset per model with the schema cited as describedBy (the data dictionary) and conformsTo by URL and SHA-256, the contact point from declared input. One tool, write_catalog, over the same function the CLI calls; valid…","description":"DCAT-US 3.0 catalogs (data.json) of published Semantic Data Charter models: one Dataset per model with the schema cited as describedBy (the data dictionary) and conformsTo by URL and SHA-256, the contact point from declared input. One tool, write_catalog, over the same function the CLI calls; validated in the package's CI with GSA's DCAT-US 3.0 JSON Schema at a pinned commit. Read-only apart from the document it returns; no account; the catalog host is fixed at start and no tool takes a URL. Self-hosted MCP server over stdio: pip install sdcdcatus, then run 'sdcdcatus mcp' (or uvx sdcdcatus mcp).","publisher":{"name":"semanticdatacharter.com","url":"https://semanticdatacharter.com"},"homepage":null,"repository":null,"version":"4.1.0","license":null,"protocols":["mcp"],"tags":["sdc","projection","catalog","mcp","open-source","dcat-us"],"pricing":null,"endpoints":[{"url":"https://github.com/SemanticDataCharter/sdc_dcat3_us","type":"mcp_streamable_http","auth":null,"probeable":true}],"skills":null,"tools":["write_catalog"],"extra":{"ard":{"type":"application/mcp-server-card+json","metadata":{"pypi":"sdcdcatus","license":"Apache-2.0","language":"Python","standards":"DCAT-US 3.0, W3C DCAT 3, JSON-LD 1.1","deployment":"self-hosted-stdio","repository":"https://github.com/SemanticDataCharter/sdc_dcat3_us","mcpRegistry":"io.github.SemanticDataCharter/sdcdcatus","mcpInvocation":"sdcdcatus mcp"},"identifier":"urn:air:semanticdatacharter.com:projection:sdcdcatus","artifactUrl":"https://github.com/SemanticDataCharter/sdc_dcat3_us","representativeQueries":["write the dcat-us 3.0 description of this published model","describe the model with this identifier in dcat-us 3.0 terms","which schema does this catalog entry cite, and by what hash"]}},"attribution":{"kind":"ard_catalog","name":"ard_catalog","summary":"ard_catalog","version":"ard_catalog","description":"ard_catalog","publisherUrl":"ard_catalog","publisherName":"ard_catalog"}},"derived":{"capabilities":[{"slug":"commerce.ecommerce","name":"E-commerce Operations","confidence":1,"provenance":"declared"}],"categories":["commerce"],"language":"en"},"observed":{"status":"unavailable","statusReason":"7 consecutive checks failed; never seen responding (latest 30h ago).","lastOkAt":null,"lastProbedAt":"2026-11-08T21:26:31.333Z","statusComputedAt":"2026-11-08T21:28:56.267Z","reliability30d":{"probes":7,"successRate":0,"p50Ms":122,"basis":"none","measures":{"availability":"availability","latency":"response time","tools":"not observed","summary":"No successful checks in the window."},"checks":{"total":7,"ok":0,"authBoundaryOk":0,"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":"2026-11-08T21:26:31.333Z","kind":"mcp_initialize","ok":false,"httpStatus":422,"latencyMs":132,"error":"http 422","detail":null},{"at":"2026-11-02T08:27:40.428Z","kind":"mcp_initialize","ok":false,"httpStatus":422,"latencyMs":117,"error":"http 422","detail":null},{"at":"2026-10-26T13:29:10.749Z","kind":"mcp_initialize","ok":false,"httpStatus":422,"latencyMs":113,"error":"http 422","detail":null},{"at":"2026-10-22T16:30:41.681Z","kind":"mcp_initialize","ok":false,"httpStatus":422,"latencyMs":130,"error":"http 422","detail":null},{"at":"2026-10-20T17:26:48.514Z","kind":"mcp_initialize","ok":false,"httpStatus":422,"latencyMs":122,"error":"http 422","detail":null},{"at":"2026-10-19T16:29:20.807Z","kind":"mcp_initialize","ok":false,"httpStatus":422,"latencyMs":117,"error":"http 422","detail":null},{"at":"2026-10-19T02:26:39.169Z","kind":"mcp_initialize","ok":false,"httpStatus":422,"latencyMs":128,"error":"http 422","detail":null}],"tools":null,"package":null,"toolSurface":null,"endpointFacts":[{"id":"ep_tknegfcrvez4","url":"https://github.com/SemanticDataCharter/sdc_dcat3_us","type":"mcp_streamable_http","factsCheckedAt":"2026-10-19T16:29:20.809Z","auth":{"observedAt":"2026-10-19T16:29:20.935Z","authRequired":false,"scheme":null,"resourceMetadata":null,"authorizationServer":null,"conformance":{"dpop":false,"rfc8414":false,"rfc9728":false,"pkceS256":false,"clientIdMetadataDocument":false,"dynamicClientRegistration":false}},"tls":{"observedAt":"2026-10-19T16:29:20.965Z","protocol":"TLSv1.3","chainValid":true,"chainError":null,"hostMatches":true,"subject":"github.com","issuer":{"commonName":"Sectigo Public Server Authentication CA DV E36","organization":"Sectigo Limited"},"validFrom":"2026-09-01T00:00:00.000Z","validTo":"2026-11-29T23:59:59.000Z","daysToExpiry":19,"sanCount":2,"fingerprint256":"46:B6:01:EE:08:B4:18:CF:8A:3A:1E:BF:E6:70:BA:5C:E4:3B:B0:5A:91:7F:A8:B2:DD:08:7A:30:47:1C:FC:63"}}]},"verification":{"claimed":false,"claimedAt":null,"proofs":[]},"provenance":{"sources":[{"source":"ard_catalog","key":"urn:air:semanticdatacharter.com:projection:sdcdcatus","url":"https://semanticdatacharter.com/.well-known/ai-catalog.json","firstSeenAt":"2026-10-19T02:22:43.195Z","fetchedAt":"2026-10-19T02:22:43.195Z","normalizedAt":"2026-10-19T02:22:43.195Z"}]},"firstSeenAt":"2026-10-19T02:22:43.195Z","updatedAt":"2026-10-19T02:22:48.889Z"}