> 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/fletcher-len/mcp

Last observed: 2026-10-02T09:33:26.396Z
Recorded as: OK
Transport: streamable-http
Observations held: 22
Published: yes

## Observations

| Observed | Snapshot | Recorded as | Detail | Latency ms | Tools | Tool schema fingerprint |
|---|---|---|---|---|---|---|
| 2026-09-11T09:43:50.709Z | REL-SNAP-038 | OK | - | 91 | 30 | 5fa8697417eca42cb85f3b102588b66655255fe30c1d0a8a407a46b39c3603db |
| 2026-09-12T09:35:23.113Z | REL-SNAP-039 | OK | - | 47 | 30 | 5fa8697417eca42cb85f3b102588b66655255fe30c1d0a8a407a46b39c3603db |
| 2026-09-13T10:02:50.372Z | REL-SNAP-040 | OK | - | 48 | 30 | 5fa8697417eca42cb85f3b102588b66655255fe30c1d0a8a407a46b39c3603db |
| 2026-09-14T10:06:27.478Z | REL-SNAP-041 | OK | - | 61 | 30 | 5fa8697417eca42cb85f3b102588b66655255fe30c1d0a8a407a46b39c3603db |
| 2026-09-15T09:56:05.522Z | REL-SNAP-042 | OK | - | 44 | 30 | 5fa8697417eca42cb85f3b102588b66655255fe30c1d0a8a407a46b39c3603db |
| 2026-09-16T10:20:29.825Z | REL-SNAP-043 | OK | - | 43 | 30 | 5fa8697417eca42cb85f3b102588b66655255fe30c1d0a8a407a46b39c3603db |
| 2026-09-17T10:04:47.780Z | REL-SNAP-044 | OK | - | 53 | 30 | 5fa8697417eca42cb85f3b102588b66655255fe30c1d0a8a407a46b39c3603db |
| 2026-09-18T09:54:43.029Z | REL-SNAP-045 | OK | - | 55 | 30 | 5fa8697417eca42cb85f3b102588b66655255fe30c1d0a8a407a46b39c3603db |
| 2026-09-19T09:40:28.465Z | REL-SNAP-046 | OK | - | 48 | 30 | 5fa8697417eca42cb85f3b102588b66655255fe30c1d0a8a407a46b39c3603db |
| 2026-09-20T09:56:16.288Z | REL-SNAP-047 | OK | - | 63 | 30 | 5fa8697417eca42cb85f3b102588b66655255fe30c1d0a8a407a46b39c3603db |
| 2026-09-21T09:37:24.020Z | REL-SNAP-048 | OK | - | 43 | 30 | 5fa8697417eca42cb85f3b102588b66655255fe30c1d0a8a407a46b39c3603db |
| 2026-09-22T09:53:23.416Z | REL-SNAP-049 | OK | - | 47 | 30 | 5fa8697417eca42cb85f3b102588b66655255fe30c1d0a8a407a46b39c3603db |
| 2026-09-23T10:14:28.933Z | REL-SNAP-050 | OK | - | 52 | 31 | 7437a1299245fa6758aa2fe77d431b4703676748f791ac0e65bc9d03f8a2435b |
| 2026-09-24T10:10:07.016Z | REL-SNAP-051 | OK | - | 52 | 31 | 377a8b4ae7648049b99b32e255c6ad268a7275f2871113a876589ff2bc548b63 |
| 2026-09-25T10:06:31.606Z | REL-SNAP-052 | OK | - | 47 | 31 | 377a8b4ae7648049b99b32e255c6ad268a7275f2871113a876589ff2bc548b63 |
| 2026-09-26T09:43:09.898Z | REL-SNAP-053 | OK | - | 46 | 31 | 377a8b4ae7648049b99b32e255c6ad268a7275f2871113a876589ff2bc548b63 |
| 2026-09-27T09:56:02.749Z | REL-SNAP-054 | OK | - | 42 | 31 | 377a8b4ae7648049b99b32e255c6ad268a7275f2871113a876589ff2bc548b63 |
| 2026-09-28T10:10:14.768Z | REL-SNAP-055 | OK | - | 50 | 31 | 377a8b4ae7648049b99b32e255c6ad268a7275f2871113a876589ff2bc548b63 |
| 2026-09-29T09:57:43.583Z | REL-SNAP-056 | OK | - | 45 | 31 | 377a8b4ae7648049b99b32e255c6ad268a7275f2871113a876589ff2bc548b63 |
| 2026-09-30T10:01:46.159Z | REL-SNAP-057 | OK | - | 49 | 31 | 377a8b4ae7648049b99b32e255c6ad268a7275f2871113a876589ff2bc548b63 |
| 2026-10-01T09:37:26.667Z | REL-SNAP-058 | OK | - | 51 | 31 | 377a8b4ae7648049b99b32e255c6ad268a7275f2871113a876589ff2bc548b63 |
| 2026-10-02T09:33:26.396Z | REL-SNAP-059 | OK | - | 53 | 31 | 377a8b4ae7648049b99b32e255c6ad268a7275f2871113a876589ff2bc548b63 |

## Identity

Record key: agent-observatory-sensor.nolimit-observatory.workers.dev/s/fletcher-len/mcp (the normalised endpoint observed)
Registry names (not anchored — no inclusion proof reaches this field): io.github.sadri-dridi/fletcher-len (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: Fletcher-32 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.