> 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/antlr-ok/mcp

Last observed: 2026-10-02T09:36:35.485Z
Recorded as: OK
Transport: streamable-http
Observations held: 15
Published: yes

## Observations

| Observed | Snapshot | Recorded as | Detail | Latency ms | Tools | Tool schema fingerprint |
|---|---|---|---|---|---|---|
| 2026-09-18T09:57:43.889Z | REL-SNAP-045 | OK | - | 48 | 30 | 3c99a53932f3c49c65c91d95ac2e432ef860ecd5ef70b6059419fdd3d34cdb48 |
| 2026-09-19T09:43:26.563Z | REL-SNAP-046 | OK | - | 54 | 30 | 3c99a53932f3c49c65c91d95ac2e432ef860ecd5ef70b6059419fdd3d34cdb48 |
| 2026-09-20T09:59:16.998Z | REL-SNAP-047 | OK | - | 46 | 30 | 3c99a53932f3c49c65c91d95ac2e432ef860ecd5ef70b6059419fdd3d34cdb48 |
| 2026-09-21T09:40:26.460Z | REL-SNAP-048 | OK | - | 48 | 30 | 3c99a53932f3c49c65c91d95ac2e432ef860ecd5ef70b6059419fdd3d34cdb48 |
| 2026-09-22T09:56:30.336Z | REL-SNAP-049 | OK | - | 44 | 30 | 3c99a53932f3c49c65c91d95ac2e432ef860ecd5ef70b6059419fdd3d34cdb48 |
| 2026-09-23T10:17:47.548Z | REL-SNAP-050 | OK | - | 52 | 31 | a59ec17b86b042480069681b6f15904b698b04557ea395bf02719605caf1e2e6 |
| 2026-09-24T10:13:13.043Z | REL-SNAP-051 | OK | - | 57 | 31 | ab3aaa0ee59980c6174a6a0f164717cc50eeb1b6361eecfcdb876ed575dd631a |
| 2026-09-25T10:09:37.074Z | REL-SNAP-052 | OK | - | 47 | 31 | ab3aaa0ee59980c6174a6a0f164717cc50eeb1b6361eecfcdb876ed575dd631a |
| 2026-09-26T09:46:31.572Z | REL-SNAP-053 | OK | - | 42 | 31 | ab3aaa0ee59980c6174a6a0f164717cc50eeb1b6361eecfcdb876ed575dd631a |
| 2026-09-27T09:59:09.351Z | REL-SNAP-054 | OK | - | 52 | 31 | ab3aaa0ee59980c6174a6a0f164717cc50eeb1b6361eecfcdb876ed575dd631a |
| 2026-09-28T10:13:16.980Z | REL-SNAP-055 | OK | - | 50 | 31 | ab3aaa0ee59980c6174a6a0f164717cc50eeb1b6361eecfcdb876ed575dd631a |
| 2026-09-29T10:00:50.856Z | REL-SNAP-056 | OK | - | 44 | 31 | ab3aaa0ee59980c6174a6a0f164717cc50eeb1b6361eecfcdb876ed575dd631a |
| 2026-09-30T10:04:55.455Z | REL-SNAP-057 | OK | - | 62 | 31 | ab3aaa0ee59980c6174a6a0f164717cc50eeb1b6361eecfcdb876ed575dd631a |
| 2026-10-01T09:40:35.529Z | REL-SNAP-058 | OK | - | 43 | 31 | ab3aaa0ee59980c6174a6a0f164717cc50eeb1b6361eecfcdb876ed575dd631a |
| 2026-10-02T09:36:35.485Z | REL-SNAP-059 | OK | - | 61 | 31 | ab3aaa0ee59980c6174a6a0f164717cc50eeb1b6361eecfcdb876ed575dd631a |

## Identity

Record key: agent-observatory-sensor.nolimit-observatory.workers.dev/s/antlr-ok/mcp (the normalised endpoint observed)
Registry names (not anchored — no inclusion proof reaches this field): io.github.sadri-dridi/antlr-ok (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: ANTLR grammar rule count, body 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.