> 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-arcade-ai.cursoraikk.chatgpt.site/api/v3/mcp

Last observed: 2026-10-02T08:59:15.614Z
Recorded as: PROTOCOL_ERROR (protocol_version_unsupported)
Transport: streamable-http
Observations held: 56
Published: yes

## Observations

| Observed | Snapshot | Recorded as | Detail | Latency ms | Tools | Tool schema fingerprint |
|---|---|---|---|---|---|---|
| 2026-08-08T10:35:29.848Z | REL-SNAP-004 | PROTOCOL_ERROR | protocol_version_unsupported | - | - | - |
| 2026-08-09T09:16:01.050Z | REL-SNAP-005 | HTTP_4XX | http_410 | - | - | - |
| 2026-08-10T09:15:34.590Z | REL-SNAP-006 | HTTP_4XX | http_410 | - | - | - |
| 2026-08-11T09:17:58.885Z | REL-SNAP-007 | PROTOCOL_ERROR | protocol_version_unsupported | - | - | - |
| 2026-08-12T09:16:28.867Z | REL-SNAP-008 | PROTOCOL_ERROR | protocol_version_unsupported | - | - | - |
| 2026-08-13T09:09:31.925Z | REL-SNAP-009 | PROTOCOL_ERROR | protocol_version_unsupported | - | - | - |
| 2026-08-14T09:22:59.830Z | REL-SNAP-010 | PROTOCOL_ERROR | protocol_version_unsupported | - | - | - |
| 2026-08-15T09:13:00.503Z | REL-SNAP-011 | PROTOCOL_ERROR | protocol_version_unsupported | - | - | - |
| 2026-08-16T09:14:17.834Z | REL-SNAP-012 | PROTOCOL_ERROR | protocol_version_unsupported | - | - | - |
| 2026-08-17T11:44:01.768Z | REL-SNAP-013 | PROTOCOL_ERROR | protocol_version_unsupported | - | - | - |
| 2026-08-18T09:12:13.770Z | REL-SNAP-014 | PROTOCOL_ERROR | protocol_version_unsupported | - | - | - |
| 2026-08-19T08:57:01.823Z | REL-SNAP-015 | PROTOCOL_ERROR | protocol_version_unsupported | - | - | - |
| 2026-08-20T09:05:29.235Z | REL-SNAP-016 | PROTOCOL_ERROR | protocol_version_unsupported | - | - | - |
| 2026-08-21T09:20:57.840Z | REL-SNAP-017 | PROTOCOL_ERROR | protocol_version_unsupported | - | - | - |
| 2026-08-22T08:57:36.492Z | REL-SNAP-018 | PROTOCOL_ERROR | protocol_version_unsupported | - | - | - |
| 2026-08-23T09:58:20.581Z | REL-SNAP-019 | PROTOCOL_ERROR | protocol_version_unsupported | - | - | - |
| 2026-08-24T09:01:02.604Z | REL-SNAP-020 | PROTOCOL_ERROR | protocol_version_unsupported | - | - | - |
| 2026-08-25T09:03:22.564Z | REL-SNAP-021 | PROTOCOL_ERROR | protocol_version_unsupported | - | - | - |
| 2026-08-26T08:59:34.133Z | REL-SNAP-022 | PROTOCOL_ERROR | protocol_version_unsupported | - | - | - |
| 2026-08-27T09:13:00.782Z | REL-SNAP-023 | PROTOCOL_ERROR | protocol_version_unsupported | - | - | - |
| 2026-08-28T09:10:59.330Z | REL-SNAP-024 | PROTOCOL_ERROR | protocol_version_unsupported | - | - | - |
| 2026-08-29T09:00:38.010Z | REL-SNAP-025 | PROTOCOL_ERROR | protocol_version_unsupported | - | - | - |
| 2026-08-30T09:02:28.347Z | REL-SNAP-026 | PROTOCOL_ERROR | protocol_version_unsupported | - | - | - |
| 2026-08-31T09:06:10.331Z | REL-SNAP-027 | PROTOCOL_ERROR | protocol_version_unsupported | - | - | - |
| 2026-09-01T09:00:49.602Z | REL-SNAP-028 | PROTOCOL_ERROR | protocol_version_unsupported | - | - | - |
| 2026-09-02T09:07:37.387Z | REL-SNAP-029 | PROTOCOL_ERROR | protocol_version_unsupported | - | - | - |
| 2026-09-03T09:29:20.798Z | REL-SNAP-030 | PROTOCOL_ERROR | protocol_version_unsupported | - | - | - |
| 2026-09-04T09:20:17.510Z | REL-SNAP-031 | PROTOCOL_ERROR | protocol_version_unsupported | - | - | - |
| 2026-09-05T09:05:51.967Z | REL-SNAP-032 | PROTOCOL_ERROR | protocol_version_unsupported | - | - | - |
| 2026-09-06T09:14:11.596Z | REL-SNAP-033 | PROTOCOL_ERROR | protocol_version_unsupported | - | - | - |
| 2026-09-07T09:31:49.511Z | REL-SNAP-034 | PROTOCOL_ERROR | protocol_version_unsupported | - | - | - |
| 2026-09-08T09:24:00.989Z | REL-SNAP-035 | PROTOCOL_ERROR | protocol_version_unsupported | - | - | - |
| 2026-09-09T09:14:07.902Z | REL-SNAP-036 | PROTOCOL_ERROR | protocol_version_unsupported | - | - | - |
| 2026-09-10T09:07:48.259Z | REL-SNAP-037 | PROTOCOL_ERROR | protocol_version_unsupported | - | - | - |
| 2026-09-11T09:07:20.871Z | REL-SNAP-038 | PROTOCOL_ERROR | protocol_version_unsupported | - | - | - |
| 2026-09-12T08:59:24.875Z | REL-SNAP-039 | PROTOCOL_ERROR | protocol_version_unsupported | - | - | - |
| 2026-09-13T09:26:43.898Z | REL-SNAP-040 | PROTOCOL_ERROR | protocol_version_unsupported | - | - | - |
| 2026-09-14T09:26:33.075Z | REL-SNAP-041 | PROTOCOL_ERROR | protocol_version_unsupported | - | - | - |
| 2026-09-15T09:20:13.251Z | REL-SNAP-042 | PROTOCOL_ERROR | protocol_version_unsupported | - | - | - |
| 2026-09-16T09:40:59.063Z | REL-SNAP-043 | PROTOCOL_ERROR | protocol_version_unsupported | - | - | - |
| 2026-09-17T09:23:50.269Z | REL-SNAP-044 | PROTOCOL_ERROR | protocol_version_unsupported | - | - | - |
| 2026-09-18T09:18:05.658Z | REL-SNAP-045 | PROTOCOL_ERROR | protocol_version_unsupported | - | - | - |
| 2026-09-19T09:04:04.257Z | REL-SNAP-046 | PROTOCOL_ERROR | protocol_version_unsupported | - | - | - |
| 2026-09-20T09:19:43.410Z | REL-SNAP-047 | PROTOCOL_ERROR | protocol_version_unsupported | - | - | - |
| 2026-09-21T09:00:15.097Z | REL-SNAP-048 | PROTOCOL_ERROR | protocol_version_unsupported | - | - | - |
| 2026-09-22T09:16:04.984Z | REL-SNAP-049 | PROTOCOL_ERROR | protocol_version_unsupported | - | - | - |
| 2026-09-23T09:38:15.290Z | REL-SNAP-050 | PROTOCOL_ERROR | protocol_version_unsupported | - | - | - |
| 2026-09-24T09:32:41.756Z | REL-SNAP-051 | PROTOCOL_ERROR | protocol_version_unsupported | - | - | - |
| 2026-09-25T09:30:56.071Z | REL-SNAP-052 | PROTOCOL_ERROR | protocol_version_unsupported | - | - | - |
| 2026-09-26T09:07:57.308Z | REL-SNAP-053 | PROTOCOL_ERROR | protocol_version_unsupported | - | - | - |
| 2026-09-27T09:20:26.407Z | REL-SNAP-054 | PROTOCOL_ERROR | protocol_version_unsupported | - | - | - |
| 2026-09-28T09:34:51.874Z | REL-SNAP-055 | PROTOCOL_ERROR | protocol_version_unsupported | - | - | - |
| 2026-09-29T09:22:23.081Z | REL-SNAP-056 | PROTOCOL_ERROR | protocol_version_unsupported | - | - | - |
| 2026-09-30T09:26:47.480Z | REL-SNAP-057 | PROTOCOL_ERROR | protocol_version_unsupported | - | - | - |
| 2026-10-01T09:03:18.241Z | REL-SNAP-058 | PROTOCOL_ERROR | protocol_version_unsupported | - | - | - |
| 2026-10-02T08:59:15.614Z | REL-SNAP-059 | PROTOCOL_ERROR | protocol_version_unsupported | - | - | - |

## Identity

Record key: agent-arcade-ai.cursoraikk.chatgpt.site/api/v3/mcp (the normalised endpoint observed)
Registry names (not anchored — no inclusion proof reaches this field): site.chatgpt.cursoraikk.agent-arcade-ai/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.