> 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/calc-eval/mcp

Last observed: 2026-10-02T09:22:22.672Z
Recorded as: OK
Transport: streamable-http
Observations held: 24
Published: yes

## Observations

| Observed | Snapshot | Recorded as | Detail | Latency ms | Tools | Tool schema fingerprint |
|---|---|---|---|---|---|---|
| 2026-09-09T09:40:38.699Z | REL-SNAP-036 | OK | - | 51 | 29 | fff788df763ae4bb13f0907b5ed77fc0ce42197ccb15af6b9cd9c7dc4ef19cf1 |
| 2026-09-10T09:33:32.309Z | REL-SNAP-037 | OK | - | 46 | 30 | 8c20294d11896b1823becb7eddeaa332b2788c2a11bf52e68d5c9201d0405a0a |
| 2026-09-11T09:33:04.564Z | REL-SNAP-038 | OK | - | 57 | 30 | 8c20294d11896b1823becb7eddeaa332b2788c2a11bf52e68d5c9201d0405a0a |
| 2026-09-12T09:24:37.037Z | REL-SNAP-039 | OK | - | 51 | 30 | 8c20294d11896b1823becb7eddeaa332b2788c2a11bf52e68d5c9201d0405a0a |
| 2026-09-13T09:51:52.278Z | REL-SNAP-040 | OK | - | 44 | 30 | 8c20294d11896b1823becb7eddeaa332b2788c2a11bf52e68d5c9201d0405a0a |
| 2026-09-14T09:52:46.523Z | REL-SNAP-041 | OK | - | 84 | 30 | 8c20294d11896b1823becb7eddeaa332b2788c2a11bf52e68d5c9201d0405a0a |
| 2026-09-15T09:45:27.032Z | REL-SNAP-042 | OK | - | 49 | 30 | 8c20294d11896b1823becb7eddeaa332b2788c2a11bf52e68d5c9201d0405a0a |
| 2026-09-16T10:09:45.967Z | REL-SNAP-043 | OK | - | 63 | 30 | 8c20294d11896b1823becb7eddeaa332b2788c2a11bf52e68d5c9201d0405a0a |
| 2026-09-17T09:54:02.148Z | REL-SNAP-044 | OK | - | 89 | 30 | 8c20294d11896b1823becb7eddeaa332b2788c2a11bf52e68d5c9201d0405a0a |
| 2026-09-18T09:44:01.508Z | REL-SNAP-045 | OK | - | 63 | 30 | 8c20294d11896b1823becb7eddeaa332b2788c2a11bf52e68d5c9201d0405a0a |
| 2026-09-19T09:29:44.043Z | REL-SNAP-046 | OK | - | 49 | 30 | 8c20294d11896b1823becb7eddeaa332b2788c2a11bf52e68d5c9201d0405a0a |
| 2026-09-20T09:45:33.480Z | REL-SNAP-047 | OK | - | 59 | 30 | 8c20294d11896b1823becb7eddeaa332b2788c2a11bf52e68d5c9201d0405a0a |
| 2026-09-21T09:26:37.948Z | REL-SNAP-048 | OK | - | 44 | 30 | 8c20294d11896b1823becb7eddeaa332b2788c2a11bf52e68d5c9201d0405a0a |
| 2026-09-22T09:42:28.879Z | REL-SNAP-049 | OK | - | 90 | 30 | 8c20294d11896b1823becb7eddeaa332b2788c2a11bf52e68d5c9201d0405a0a |
| 2026-09-23T10:03:06.428Z | REL-SNAP-050 | OK | - | 64 | 31 | 409743b739e3404e61a8013cad8f531d31ffb61ad35b5f8b30b255f9055158da |
| 2026-09-24T09:58:41.222Z | REL-SNAP-051 | OK | - | 47 | 31 | 54da3c0266b8e7bcfa995d7bb837542fef7906987b03c01c83ae8a42589e7a19 |
| 2026-09-25T09:55:10.874Z | REL-SNAP-052 | OK | - | 51 | 31 | 54da3c0266b8e7bcfa995d7bb837542fef7906987b03c01c83ae8a42589e7a19 |
| 2026-09-26T09:31:39.582Z | REL-SNAP-053 | OK | - | 48 | 31 | 54da3c0266b8e7bcfa995d7bb837542fef7906987b03c01c83ae8a42589e7a19 |
| 2026-09-27T09:44:34.774Z | REL-SNAP-054 | OK | - | 46 | 31 | 54da3c0266b8e7bcfa995d7bb837542fef7906987b03c01c83ae8a42589e7a19 |
| 2026-09-28T09:59:12.120Z | REL-SNAP-055 | OK | - | 53 | 31 | 54da3c0266b8e7bcfa995d7bb837542fef7906987b03c01c83ae8a42589e7a19 |
| 2026-09-29T09:46:29.382Z | REL-SNAP-056 | OK | - | 61 | 31 | 54da3c0266b8e7bcfa995d7bb837542fef7906987b03c01c83ae8a42589e7a19 |
| 2026-09-30T09:50:38.029Z | REL-SNAP-057 | OK | - | 57 | 31 | 54da3c0266b8e7bcfa995d7bb837542fef7906987b03c01c83ae8a42589e7a19 |
| 2026-10-01T09:26:18.729Z | REL-SNAP-058 | OK | - | 54 | 31 | 54da3c0266b8e7bcfa995d7bb837542fef7906987b03c01c83ae8a42589e7a19 |
| 2026-10-02T09:22:22.672Z | REL-SNAP-059 | OK | - | 77 | 31 | 54da3c0266b8e7bcfa995d7bb837542fef7906987b03c01c83ae8a42589e7a19 |

## Identity

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