> 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.

# agentarcade.top/api/mcp

Last observed: 2026-10-02T09:06:46.787Z
Recorded as: PROTOCOL_ERROR (protocol_version_unsupported)
Transport: streamable-http
Observations held: 41
Published: yes

## Observations

| Observed | Snapshot | Recorded as | Detail | Latency ms | Tools | Tool schema fingerprint |
|---|---|---|---|---|---|---|
| 2026-08-23T10:08:04.679Z | REL-SNAP-019 | PROTOCOL_ERROR | protocol_version_unsupported | - | - | - |
| 2026-08-24T09:11:14.835Z | REL-SNAP-020 | PROTOCOL_ERROR | protocol_version_unsupported | - | - | - |
| 2026-08-25T09:13:15.590Z | REL-SNAP-021 | PROTOCOL_ERROR | protocol_version_unsupported | - | - | - |
| 2026-08-26T09:09:42.030Z | REL-SNAP-022 | PROTOCOL_ERROR | protocol_version_unsupported | - | - | - |
| 2026-08-27T09:23:30.971Z | REL-SNAP-023 | PROTOCOL_ERROR | protocol_version_unsupported | - | - | - |
| 2026-08-28T09:20:18.670Z | REL-SNAP-024 | PROTOCOL_ERROR | protocol_version_unsupported | - | - | - |
| 2026-08-29T09:10:20.147Z | REL-SNAP-025 | PROTOCOL_ERROR | protocol_version_unsupported | - | - | - |
| 2026-08-30T09:12:28.235Z | REL-SNAP-026 | PROTOCOL_ERROR | protocol_version_unsupported | - | - | - |
| 2026-08-31T09:15:38.352Z | REL-SNAP-027 | PROTOCOL_ERROR | protocol_version_unsupported | - | - | - |
| 2026-09-01T09:10:25.783Z | REL-SNAP-028 | PROTOCOL_ERROR | protocol_version_unsupported | - | - | - |
| 2026-09-02T09:16:44.190Z | REL-SNAP-029 | PROTOCOL_ERROR | protocol_version_unsupported | - | - | - |
| 2026-09-03T09:38:12.877Z | REL-SNAP-030 | PROTOCOL_ERROR | protocol_version_unsupported | - | - | - |
| 2026-09-04T09:29:17.077Z | REL-SNAP-031 | PROTOCOL_ERROR | protocol_version_unsupported | - | - | - |
| 2026-09-05T09:14:17.846Z | REL-SNAP-032 | PROTOCOL_ERROR | protocol_version_unsupported | - | - | - |
| 2026-09-06T09:23:06.521Z | REL-SNAP-033 | PROTOCOL_ERROR | protocol_version_unsupported | - | - | - |
| 2026-09-07T09:43:57.151Z | REL-SNAP-034 | PROTOCOL_ERROR | protocol_version_unsupported | - | - | - |
| 2026-09-08T09:35:55.588Z | REL-SNAP-035 | PROTOCOL_ERROR | protocol_version_unsupported | - | - | - |
| 2026-09-09T09:22:36.338Z | REL-SNAP-036 | PROTOCOL_ERROR | protocol_version_unsupported | - | - | - |
| 2026-09-10T09:16:03.533Z | REL-SNAP-037 | PROTOCOL_ERROR | protocol_version_unsupported | - | - | - |
| 2026-09-11T09:15:37.764Z | REL-SNAP-038 | PROTOCOL_ERROR | protocol_version_unsupported | - | - | - |
| 2026-09-12T09:07:47.189Z | REL-SNAP-039 | PROTOCOL_ERROR | protocol_version_unsupported | - | - | - |
| 2026-09-13T09:35:21.052Z | REL-SNAP-040 | PROTOCOL_ERROR | protocol_version_unsupported | - | - | - |
| 2026-09-14T09:35:11.151Z | REL-SNAP-041 | PROTOCOL_ERROR | protocol_version_unsupported | - | - | - |
| 2026-09-15T09:28:32.064Z | REL-SNAP-042 | PROTOCOL_ERROR | protocol_version_unsupported | - | - | - |
| 2026-09-16T09:53:35.807Z | REL-SNAP-043 | PROTOCOL_ERROR | protocol_version_unsupported | - | - | - |
| 2026-09-17T09:36:59.495Z | REL-SNAP-044 | PROTOCOL_ERROR | protocol_version_unsupported | - | - | - |
| 2026-09-18T09:27:24.563Z | REL-SNAP-045 | PROTOCOL_ERROR | protocol_version_unsupported | - | - | - |
| 2026-09-19T09:13:31.653Z | REL-SNAP-046 | PROTOCOL_ERROR | protocol_version_unsupported | - | - | - |
| 2026-09-20T09:28:57.108Z | REL-SNAP-047 | PROTOCOL_ERROR | protocol_version_unsupported | - | - | - |
| 2026-09-21T09:10:21.847Z | REL-SNAP-048 | PROTOCOL_ERROR | protocol_version_unsupported | - | - | - |
| 2026-09-22T09:25:33.594Z | REL-SNAP-049 | PROTOCOL_ERROR | protocol_version_unsupported | - | - | - |
| 2026-09-23T09:46:34.978Z | REL-SNAP-050 | PROTOCOL_ERROR | protocol_version_unsupported | - | - | - |
| 2026-09-24T09:42:15.405Z | REL-SNAP-051 | PROTOCOL_ERROR | protocol_version_unsupported | - | - | - |
| 2026-09-25T09:39:42.264Z | REL-SNAP-052 | PROTOCOL_ERROR | protocol_version_unsupported | - | - | - |
| 2026-09-26T09:16:01.561Z | REL-SNAP-053 | PROTOCOL_ERROR | protocol_version_unsupported | - | - | - |
| 2026-09-27T09:28:46.542Z | REL-SNAP-054 | PROTOCOL_ERROR | protocol_version_unsupported | - | - | - |
| 2026-09-28T09:42:45.570Z | REL-SNAP-055 | PROTOCOL_ERROR | protocol_version_unsupported | - | - | - |
| 2026-09-29T09:30:40.050Z | REL-SNAP-056 | PROTOCOL_ERROR | protocol_version_unsupported | - | - | - |
| 2026-09-30T09:34:45.126Z | REL-SNAP-057 | PROTOCOL_ERROR | protocol_version_unsupported | - | - | - |
| 2026-10-01T09:10:48.565Z | REL-SNAP-058 | PROTOCOL_ERROR | protocol_version_unsupported | - | - | - |
| 2026-10-02T09:06:46.787Z | REL-SNAP-059 | PROTOCOL_ERROR | protocol_version_unsupported | - | - | - |

## Identity

Record key: agentarcade.top/api/mcp (the normalised endpoint observed)
Registry names (not anchored — no inclusion proof reaches this field): top.agentarcade/agent-arcade (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: not reported (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.