{
  "spec": "rightshold-mcp-health-v1",
  "checked_at": "2026-10-27T23:19:25.603Z",
  "about": "MCP health receipts are the liveness record of the MCP servers listed on Rightshold: a background probe re-checks each listed server on a fixed cadence (at most three servers per pass, stalest first), and every probe is published as one append-only, hash-chained receipt — the time, the outcome, the latency, the tool count and the tool-definition fingerprint the server answered with. An outcome is a probe fact: up means the server's MCP handshake (initialize + tools/list) answered from this deployment at that time; down means it did not answer; redirected means the registered URL now redirects elsewhere, so the answer was not recorded as this server's; changed means it answered with tool definitions whose fingerprint differs from the recorded one. None of these is a finding that a server or its tools are safe. State transitions are also sealed into the public ledger as change observations; the full receipt history lives on this surface.",
  "note": "Probes run on the deployment's cadence, not on read: reading this surface never probes a server. A server with no receipts yet has not been probed since this record began — that is stated as an empty history, never filled in or back-dated.",
  "server": {
    "slug": "huggingface-co-mcp",
    "url": "https://huggingface.co/mcp",
    "server_name": "huggingface.co/mcp",
    "fingerprint": "8aac476f9fa495d307cf10d93dc7d2ee0ececb8de6dd01f16806367dc696b71a",
    "fingerprint_version": 2,
    "page_url": "https://www.rightshold.com/store/external/huggingface-co-mcp"
  },
  "summary": {
    "slug": "huggingface-co-mcp",
    "url": "https://huggingface.co/mcp",
    "server_name": "huggingface.co/mcp",
    "current": {
      "outcome": "up",
      "at": "2026-10-27T22:46:20.899Z",
      "latency_ms": 123
    },
    "probes_total": 3,
    "probes_window": 3,
    "up_window": 3,
    "up_share_window_pct": 100,
    "window_days": 30,
    "last_receipt": {
      "id": "mch_oidw49jer9ym77",
      "slug": "huggingface-co-mcp",
      "at": "2026-10-27T22:46:20.899Z",
      "outcome": "up",
      "latency_ms": 123,
      "tool_count": 4,
      "fingerprint": "8aac476f9fa495d307cf10d93dc7d2ee0ececb8de6dd01f16806367dc696b71a",
      "fingerprint_version": 2,
      "detail": "the MCP handshake answered (initialize + tools/list) with tool definitions matching recorded fingerprint version 2",
      "receipt_hash": "c215992070b24c706425e4a07b968c0673f144651e7d039181e347693979bf91",
      "prev_hash": "9c2b56e1977a2f64821270a7d77e33f6f561c8f9887c1a47c5e82b3588c2528d",
      "ledger_seq": null,
      "record_url": "https://www.rightshold.com/v1/mcp-health/huggingface-co-mcp"
    },
    "history_url": "https://www.rightshold.com/v1/mcp-health/huggingface-co-mcp"
  },
  "history": [
    {
      "id": "mch_oidw49jer9ym77",
      "slug": "huggingface-co-mcp",
      "at": "2026-10-27T22:46:20.899Z",
      "outcome": "up",
      "latency_ms": 123,
      "tool_count": 4,
      "fingerprint": "8aac476f9fa495d307cf10d93dc7d2ee0ececb8de6dd01f16806367dc696b71a",
      "fingerprint_version": 2,
      "detail": "the MCP handshake answered (initialize + tools/list) with tool definitions matching recorded fingerprint version 2",
      "receipt_hash": "c215992070b24c706425e4a07b968c0673f144651e7d039181e347693979bf91",
      "prev_hash": "9c2b56e1977a2f64821270a7d77e33f6f561c8f9887c1a47c5e82b3588c2528d",
      "ledger_seq": null,
      "record_url": "https://www.rightshold.com/v1/mcp-health/huggingface-co-mcp"
    },
    {
      "id": "mch_7ihx4njzr8w0kl",
      "slug": "huggingface-co-mcp",
      "at": "2026-10-27T22:16:19.941Z",
      "outcome": "up",
      "latency_ms": 111,
      "tool_count": 4,
      "fingerprint": "8aac476f9fa495d307cf10d93dc7d2ee0ececb8de6dd01f16806367dc696b71a",
      "fingerprint_version": 2,
      "detail": "the MCP handshake answered (initialize + tools/list) with tool definitions matching recorded fingerprint version 2",
      "receipt_hash": "9c2b56e1977a2f64821270a7d77e33f6f561c8f9887c1a47c5e82b3588c2528d",
      "prev_hash": "3878eba5d5bcadf457a85b7a6db46dc2486cae976a653957c15a39c7445dd045",
      "ledger_seq": null,
      "record_url": "https://www.rightshold.com/v1/mcp-health/huggingface-co-mcp"
    },
    {
      "id": "mch_97twd6yar7gzd2",
      "slug": "huggingface-co-mcp",
      "at": "2026-10-27T21:36:38.918Z",
      "outcome": "up",
      "latency_ms": 103,
      "tool_count": 4,
      "fingerprint": "8aac476f9fa495d307cf10d93dc7d2ee0ececb8de6dd01f16806367dc696b71a",
      "fingerprint_version": 2,
      "detail": "the MCP handshake answered (initialize + tools/list) with tool definitions matching recorded fingerprint version 2",
      "receipt_hash": "3878eba5d5bcadf457a85b7a6db46dc2486cae976a653957c15a39c7445dd045",
      "prev_hash": "0000000000000000000000000000000000000000000000000000000000000000",
      "ledger_seq": 1939,
      "record_url": "https://www.rightshold.com/v1/mcp-health/huggingface-co-mcp"
    }
  ],
  "history_count": 3,
  "empty": false
}