> 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.

# api.butlerbrain.ai/mcp

Last observed: 2026-10-02T08:38:45.758Z
Recorded as: AUTH_REQUIRED (http_401)
Transport: streamable-http
Observations held: 58
Published: yes

## Observations

| Observed | Snapshot | Recorded as | Detail | Latency ms | Tools | Tool schema fingerprint |
|---|---|---|---|---|---|---|
| 2026-08-06T17:33:13.016Z | REL-SNAP-002 | AUTH_REQUIRED | http_401 | - | - | - |
| 2026-08-07T08:19:06.164Z | REL-SNAP-003 | AUTH_REQUIRED | http_401 | - | - | - |
| 2026-08-08T09:59:51.431Z | REL-SNAP-004 | AUTH_REQUIRED | http_401 | - | - | - |
| 2026-08-09T08:42:13.025Z | REL-SNAP-005 | AUTH_REQUIRED | http_401 | - | - | - |
| 2026-08-10T08:37:06.770Z | REL-SNAP-006 | AUTH_REQUIRED | http_401 | - | - | - |
| 2026-08-11T08:41:46.564Z | REL-SNAP-007 | AUTH_REQUIRED | http_401 | - | - | - |
| 2026-08-12T08:40:57.466Z | REL-SNAP-008 | AUTH_REQUIRED | http_401 | - | - | - |
| 2026-08-13T08:35:54.170Z | REL-SNAP-009 | AUTH_REQUIRED | http_401 | - | - | - |
| 2026-08-14T08:45:38.598Z | REL-SNAP-010 | AUTH_REQUIRED | http_401 | - | - | - |
| 2026-08-15T08:36:16.038Z | REL-SNAP-011 | AUTH_REQUIRED | http_401 | - | - | - |
| 2026-08-16T08:37:13.067Z | REL-SNAP-012 | AUTH_REQUIRED | http_401 | - | - | - |
| 2026-08-17T10:31:11.302Z | REL-SNAP-013 | AUTH_REQUIRED | http_401 | - | - | - |
| 2026-08-18T08:36:30.077Z | REL-SNAP-014 | AUTH_REQUIRED | http_401 | - | - | - |
| 2026-08-19T08:31:56.543Z | REL-SNAP-015 | AUTH_REQUIRED | http_401 | - | - | - |
| 2026-08-20T08:40:25.845Z | REL-SNAP-016 | AUTH_REQUIRED | http_401 | - | - | - |
| 2026-08-21T08:56:19.869Z | REL-SNAP-017 | AUTH_REQUIRED | http_401 | - | - | - |
| 2026-08-22T08:33:33.906Z | REL-SNAP-018 | AUTH_REQUIRED | http_401 | - | - | - |
| 2026-08-23T09:34:43.157Z | REL-SNAP-019 | AUTH_REQUIRED | http_401 | - | - | - |
| 2026-08-24T08:36:46.636Z | REL-SNAP-020 | AUTH_REQUIRED | http_401 | - | - | - |
| 2026-08-25T08:37:31.117Z | REL-SNAP-021 | AUTH_REQUIRED | http_401 | - | - | - |
| 2026-08-26T08:33:28.915Z | REL-SNAP-022 | AUTH_REQUIRED | http_401 | - | - | - |
| 2026-08-27T08:45:28.760Z | REL-SNAP-023 | AUTH_REQUIRED | http_401 | - | - | - |
| 2026-08-28T08:44:54.744Z | REL-SNAP-024 | AUTH_REQUIRED | http_401 | - | - | - |
| 2026-08-29T08:34:36.331Z | REL-SNAP-025 | AUTH_REQUIRED | http_401 | - | - | - |
| 2026-08-30T08:36:41.678Z | REL-SNAP-026 | AUTH_REQUIRED | http_401 | - | - | - |
| 2026-08-31T08:39:14.361Z | REL-SNAP-027 | AUTH_REQUIRED | http_401 | - | - | - |
| 2026-09-01T08:34:24.835Z | REL-SNAP-028 | AUTH_REQUIRED | http_401 | - | - | - |
| 2026-09-02T08:42:44.040Z | REL-SNAP-029 | AUTH_REQUIRED | http_401 | - | - | - |
| 2026-09-03T09:04:18.757Z | REL-SNAP-030 | AUTH_REQUIRED | http_401 | - | - | - |
| 2026-09-04T08:49:50.373Z | REL-SNAP-031 | AUTH_REQUIRED | http_401 | - | - | - |
| 2026-09-05T08:36:50.744Z | REL-SNAP-032 | AUTH_REQUIRED | http_401 | - | - | - |
| 2026-09-06T08:49:06.535Z | REL-SNAP-033 | AUTH_REQUIRED | http_401 | - | - | - |
| 2026-09-07T09:00:16.224Z | REL-SNAP-034 | AUTH_REQUIRED | http_401 | - | - | - |
| 2026-09-08T08:53:29.815Z | REL-SNAP-035 | AUTH_REQUIRED | http_401 | - | - | - |
| 2026-09-09T08:50:22.245Z | REL-SNAP-036 | AUTH_REQUIRED | http_401 | - | - | - |
| 2026-09-10T08:44:43.958Z | REL-SNAP-037 | AUTH_REQUIRED | http_401 | - | - | - |
| 2026-09-11T08:43:47.282Z | REL-SNAP-038 | AUTH_REQUIRED | http_401 | - | - | - |
| 2026-09-12T08:36:20.633Z | REL-SNAP-039 | AUTH_REQUIRED | http_401 | - | - | - |
| 2026-09-13T09:03:32.927Z | REL-SNAP-040 | AUTH_REQUIRED | http_401 | - | - | - |
| 2026-09-14T09:02:32.397Z | REL-SNAP-041 | AUTH_REQUIRED | http_401 | - | - | - |
| 2026-09-15T08:53:55.980Z | REL-SNAP-042 | AUTH_REQUIRED | http_401 | - | - | - |
| 2026-09-16T09:12:33.318Z | REL-SNAP-043 | AUTH_REQUIRED | http_401 | - | - | - |
| 2026-09-17T08:55:17.825Z | REL-SNAP-044 | AUTH_REQUIRED | http_401 | - | - | - |
| 2026-09-18T08:53:17.798Z | REL-SNAP-045 | AUTH_REQUIRED | http_401 | - | - | - |
| 2026-09-19T08:41:09.313Z | REL-SNAP-046 | AUTH_REQUIRED | http_401 | - | - | - |
| 2026-09-20T08:54:25.975Z | REL-SNAP-047 | AUTH_REQUIRED | http_401 | - | - | - |
| 2026-09-21T08:34:09.342Z | REL-SNAP-048 | AUTH_REQUIRED | http_401 | - | - | - |
| 2026-09-22T08:52:31.229Z | REL-SNAP-049 | AUTH_REQUIRED | http_401 | - | - | - |
| 2026-09-23T09:15:00.014Z | REL-SNAP-050 | AUTH_REQUIRED | http_401 | - | - | - |
| 2026-09-24T09:08:03.460Z | REL-SNAP-051 | AUTH_REQUIRED | http_401 | - | - | - |
| 2026-09-25T09:09:14.823Z | REL-SNAP-052 | AUTH_REQUIRED | http_401 | - | - | - |
| 2026-09-26T08:46:24.410Z | REL-SNAP-053 | AUTH_REQUIRED | http_401 | - | - | - |
| 2026-09-27T08:59:15.836Z | REL-SNAP-054 | AUTH_REQUIRED | http_401 | - | - | - |
| 2026-09-28T09:13:01.436Z | REL-SNAP-055 | AUTH_REQUIRED | http_401 | - | - | - |
| 2026-09-29T09:00:39.432Z | REL-SNAP-056 | AUTH_REQUIRED | http_401 | - | - | - |
| 2026-09-30T09:04:44.190Z | REL-SNAP-057 | AUTH_REQUIRED | http_401 | - | - | - |
| 2026-10-01T08:42:28.374Z | REL-SNAP-058 | AUTH_REQUIRED | http_401 | - | - | - |
| 2026-10-02T08:38:45.758Z | REL-SNAP-059 | AUTH_REQUIRED | http_401 | - | - | - |

## Identity

Record key: api.butlerbrain.ai/mcp (the normalised endpoint observed)
Registry names (not anchored — no inclusion proof reaches this field): ai.butlerbrain/mcp (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.