> NOTICE — Pre-launch build. Every record here is a dated observation of a real MCP endpoint operated by a third party, rendered from the published archive. Coverage is partial — the figures cover the snapshots in the export this build was made from, not the whole chain and not the whole ecosystem. Claims and badges are not open.

# agent-observatory-sensor.nolimit-observatory.workers.dev/s/hmac-sha256/mcp

Last observed: 2026-10-02T09:34:30.495Z
Recorded as: OK
Transport: streamable-http
Observations held: 21
Published: yes

## Observations

| Observed | Snapshot | Recorded as | Detail | Latency ms | Tools | Tool schema fingerprint |
|---|---|---|---|---|---|---|
| 2026-09-12T09:36:23.993Z | REL-SNAP-039 | OK | - | 51 | 30 | 4239e7d0177aa9ee3a04457aa9b694ccf273bbc1c3e3f7641bac0e64a9e5ffe6 |
| 2026-09-13T10:03:52.464Z | REL-SNAP-040 | OK | - | 53 | 30 | 4239e7d0177aa9ee3a04457aa9b694ccf273bbc1c3e3f7641bac0e64a9e5ffe6 |
| 2026-09-14T10:07:30.013Z | REL-SNAP-041 | OK | - | 50 | 30 | 4239e7d0177aa9ee3a04457aa9b694ccf273bbc1c3e3f7641bac0e64a9e5ffe6 |
| 2026-09-15T09:57:07.652Z | REL-SNAP-042 | OK | - | 53 | 30 | 4239e7d0177aa9ee3a04457aa9b694ccf273bbc1c3e3f7641bac0e64a9e5ffe6 |
| 2026-09-16T10:21:30.545Z | REL-SNAP-043 | OK | - | 54 | 30 | 4239e7d0177aa9ee3a04457aa9b694ccf273bbc1c3e3f7641bac0e64a9e5ffe6 |
| 2026-09-17T10:05:50.226Z | REL-SNAP-044 | OK | - | 55 | 30 | 4239e7d0177aa9ee3a04457aa9b694ccf273bbc1c3e3f7641bac0e64a9e5ffe6 |
| 2026-09-18T09:55:45.040Z | REL-SNAP-045 | OK | - | 57 | 30 | 4239e7d0177aa9ee3a04457aa9b694ccf273bbc1c3e3f7641bac0e64a9e5ffe6 |
| 2026-09-19T09:41:30.108Z | REL-SNAP-046 | OK | - | 44 | 30 | 4239e7d0177aa9ee3a04457aa9b694ccf273bbc1c3e3f7641bac0e64a9e5ffe6 |
| 2026-09-20T09:57:18.789Z | REL-SNAP-047 | OK | - | 47 | 30 | 4239e7d0177aa9ee3a04457aa9b694ccf273bbc1c3e3f7641bac0e64a9e5ffe6 |
| 2026-09-21T09:38:26.377Z | REL-SNAP-048 | OK | - | 55 | 30 | 4239e7d0177aa9ee3a04457aa9b694ccf273bbc1c3e3f7641bac0e64a9e5ffe6 |
| 2026-09-22T09:54:28.310Z | REL-SNAP-049 | OK | - | 55 | 30 | 4239e7d0177aa9ee3a04457aa9b694ccf273bbc1c3e3f7641bac0e64a9e5ffe6 |
| 2026-09-23T10:15:37.648Z | REL-SNAP-050 | OK | - | 46 | 31 | 695cf31d943391c477c0ef48d15e0c6dd1d99bd23c4c62d0815a148976fe45f8 |
| 2026-09-24T10:11:13.346Z | REL-SNAP-051 | OK | - | 56 | 31 | 89f125e7b18c38eb579078b5432f01d787f630d39449dc5714ab3ab40f10a0da |
| 2026-09-25T10:07:36.197Z | REL-SNAP-052 | OK | - | 71 | 31 | 89f125e7b18c38eb579078b5432f01d787f630d39449dc5714ab3ab40f10a0da |
| 2026-09-26T09:44:29.947Z | REL-SNAP-053 | OK | - | 52 | 31 | 89f125e7b18c38eb579078b5432f01d787f630d39449dc5714ab3ab40f10a0da |
| 2026-09-27T09:57:08.205Z | REL-SNAP-054 | OK | - | 44 | 31 | 89f125e7b18c38eb579078b5432f01d787f630d39449dc5714ab3ab40f10a0da |
| 2026-09-28T10:11:17.911Z | REL-SNAP-055 | OK | - | 54 | 31 | 89f125e7b18c38eb579078b5432f01d787f630d39449dc5714ab3ab40f10a0da |
| 2026-09-29T09:58:46.969Z | REL-SNAP-056 | OK | - | 64 | 31 | 89f125e7b18c38eb579078b5432f01d787f630d39449dc5714ab3ab40f10a0da |
| 2026-09-30T10:02:52.540Z | REL-SNAP-057 | OK | - | 49 | 31 | 89f125e7b18c38eb579078b5432f01d787f630d39449dc5714ab3ab40f10a0da |
| 2026-10-01T09:38:32.067Z | REL-SNAP-058 | OK | - | 60 | 31 | 89f125e7b18c38eb579078b5432f01d787f630d39449dc5714ab3ab40f10a0da |
| 2026-10-02T09:34:30.495Z | REL-SNAP-059 | OK | - | 45 | 31 | 89f125e7b18c38eb579078b5432f01d787f630d39449dc5714ab3ab40f10a0da |

## Identity

Record key: agent-observatory-sensor.nolimit-observatory.workers.dev/s/hmac-sha256/mcp (the normalised endpoint observed)
Registry names (not anchored — no inclusion proof reaches this field): io.github.sadri-dridi/hmac-sha256 (what the registry said when we swept it, as observed by us — not evidence that the registry was correct, that the name belongs to whoever registered it, or that it still resolves)
Name reported by the server: HMAC-SHA256 hex length, input discarded (self-reported, unverified, never used as identity)

Each observation carries a merkle leaf in the snapshot it belongs to. The chain
establishes that a root existed by a given time; it does not establish that any
measurement is true.