> 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/isbn-uri/mcp

Last observed: 2026-10-02T09:32:42.400Z
Recorded as: OK
Transport: streamable-http
Observations held: 22
Published: yes

## Observations

| Observed | Snapshot | Recorded as | Detail | Latency ms | Tools | Tool schema fingerprint |
|---|---|---|---|---|---|---|
| 2026-09-11T09:43:10.117Z | REL-SNAP-038 | OK | - | 63 | 30 | 61698e31ffc05839556c9cfc1a1cea454b315a84b647c9ecceaa00c641c2c0da |
| 2026-09-12T09:34:41.712Z | REL-SNAP-039 | OK | - | 46 | 30 | 61698e31ffc05839556c9cfc1a1cea454b315a84b647c9ecceaa00c641c2c0da |
| 2026-09-13T10:02:08.172Z | REL-SNAP-040 | OK | - | 49 | 30 | 61698e31ffc05839556c9cfc1a1cea454b315a84b647c9ecceaa00c641c2c0da |
| 2026-09-14T10:05:44.721Z | REL-SNAP-041 | OK | - | 50 | 30 | 61698e31ffc05839556c9cfc1a1cea454b315a84b647c9ecceaa00c641c2c0da |
| 2026-09-15T09:55:23.868Z | REL-SNAP-042 | OK | - | 77 | 30 | 61698e31ffc05839556c9cfc1a1cea454b315a84b647c9ecceaa00c641c2c0da |
| 2026-09-16T10:19:46.850Z | REL-SNAP-043 | OK | - | 89 | 30 | 61698e31ffc05839556c9cfc1a1cea454b315a84b647c9ecceaa00c641c2c0da |
| 2026-09-17T10:04:05.800Z | REL-SNAP-044 | OK | - | 48 | 30 | 61698e31ffc05839556c9cfc1a1cea454b315a84b647c9ecceaa00c641c2c0da |
| 2026-09-18T09:54:02.078Z | REL-SNAP-045 | OK | - | 56 | 30 | 61698e31ffc05839556c9cfc1a1cea454b315a84b647c9ecceaa00c641c2c0da |
| 2026-09-19T09:39:45.174Z | REL-SNAP-046 | OK | - | 54 | 30 | 61698e31ffc05839556c9cfc1a1cea454b315a84b647c9ecceaa00c641c2c0da |
| 2026-09-20T09:55:33.724Z | REL-SNAP-047 | OK | - | 46 | 30 | 61698e31ffc05839556c9cfc1a1cea454b315a84b647c9ecceaa00c641c2c0da |
| 2026-09-21T09:36:40.514Z | REL-SNAP-048 | OK | - | 50 | 30 | 61698e31ffc05839556c9cfc1a1cea454b315a84b647c9ecceaa00c641c2c0da |
| 2026-09-22T09:52:40.437Z | REL-SNAP-049 | OK | - | 60 | 30 | 61698e31ffc05839556c9cfc1a1cea454b315a84b647c9ecceaa00c641c2c0da |
| 2026-09-23T10:13:43.566Z | REL-SNAP-050 | OK | - | 62 | 31 | bf4beed3b6319e7a7bf4c8ec156de88035c400f27028108dbaeea039bc0b2eba |
| 2026-09-24T10:09:21.701Z | REL-SNAP-051 | OK | - | 45 | 31 | 9b9a86fa97867e096242abf27ad1ec6474b23d3f7bdf99ad9a6ed85f3316d2a9 |
| 2026-09-25T10:05:46.334Z | REL-SNAP-052 | OK | - | 49 | 31 | 9b9a86fa97867e096242abf27ad1ec6474b23d3f7bdf99ad9a6ed85f3316d2a9 |
| 2026-09-26T09:42:27.041Z | REL-SNAP-053 | OK | - | 47 | 31 | 9b9a86fa97867e096242abf27ad1ec6474b23d3f7bdf99ad9a6ed85f3316d2a9 |
| 2026-09-27T09:55:14.830Z | REL-SNAP-054 | OK | - | 49 | 31 | 9b9a86fa97867e096242abf27ad1ec6474b23d3f7bdf99ad9a6ed85f3316d2a9 |
| 2026-09-28T10:09:30.800Z | REL-SNAP-055 | OK | - | 55 | 31 | 9b9a86fa97867e096242abf27ad1ec6474b23d3f7bdf99ad9a6ed85f3316d2a9 |
| 2026-09-29T09:56:57.429Z | REL-SNAP-056 | OK | - | 56 | 31 | 9b9a86fa97867e096242abf27ad1ec6474b23d3f7bdf99ad9a6ed85f3316d2a9 |
| 2026-09-30T10:00:59.433Z | REL-SNAP-057 | OK | - | 52 | 31 | 9b9a86fa97867e096242abf27ad1ec6474b23d3f7bdf99ad9a6ed85f3316d2a9 |
| 2026-10-01T09:36:42.434Z | REL-SNAP-058 | OK | - | 44 | 31 | 9b9a86fa97867e096242abf27ad1ec6474b23d3f7bdf99ad9a6ed85f3316d2a9 |
| 2026-10-02T09:32:42.400Z | REL-SNAP-059 | OK | - | 49 | 31 | 9b9a86fa97867e096242abf27ad1ec6474b23d3f7bdf99ad9a6ed85f3316d2a9 |

## Identity

Record key: agent-observatory-sensor.nolimit-observatory.workers.dev/s/isbn-uri/mcp (the normalised endpoint observed)
Registry names (not anchored — no inclusion proof reaches this field): io.github.sadri-dridi/isbn-uri (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: ISBN URN shape, value 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.