> 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.callboard.fm/sse

Last observed: 2026-10-02T09:11:18.620Z
Recorded as: HTTP_4XX (http_405)
Transport: sse
Observations held: 35
Published: yes

## Observations

| Observed | Snapshot | Recorded as | Detail | Latency ms | Tools | Tool schema fingerprint |
|---|---|---|---|---|---|---|
| 2026-08-29T09:18:02.195Z | REL-SNAP-025 | HTTP_4XX | http_405 | - | - | - |
| 2026-08-30T09:20:06.256Z | REL-SNAP-026 | HTTP_4XX | http_405 | - | - | - |
| 2026-08-31T09:22:54.243Z | REL-SNAP-027 | HTTP_4XX | http_405 | - | - | - |
| 2026-09-01T09:17:27.141Z | REL-SNAP-028 | HTTP_4XX | http_405 | - | - | - |
| 2026-09-02T09:24:00.183Z | REL-SNAP-029 | HTTP_4XX | http_405 | - | - | - |
| 2026-09-03T09:45:02.473Z | REL-SNAP-030 | HTTP_4XX | http_405 | - | - | - |
| 2026-09-04T09:35:43.965Z | REL-SNAP-031 | HTTP_4XX | http_405 | - | - | - |
| 2026-09-05T09:20:32.821Z | REL-SNAP-032 | HTTP_4XX | http_405 | - | - | - |
| 2026-09-06T09:29:17.421Z | REL-SNAP-033 | HTTP_4XX | http_405 | - | - | - |
| 2026-09-07T09:53:43.432Z | REL-SNAP-034 | HTTP_4XX | http_405 | - | - | - |
| 2026-09-08T09:45:11.409Z | REL-SNAP-035 | HTTP_4XX | http_405 | - | - | - |
| 2026-09-09T09:28:55.137Z | REL-SNAP-036 | HTTP_4XX | http_405 | - | - | - |
| 2026-09-10T09:22:20.256Z | REL-SNAP-037 | HTTP_4XX | http_405 | - | - | - |
| 2026-09-11T09:21:47.252Z | REL-SNAP-038 | HTTP_4XX | http_405 | - | - | - |
| 2026-09-12T09:13:13.511Z | REL-SNAP-039 | HTTP_4XX | http_405 | - | - | - |
| 2026-09-13T09:40:37.535Z | REL-SNAP-040 | HTTP_4XX | http_405 | - | - | - |
| 2026-09-14T09:40:43.902Z | REL-SNAP-041 | HTTP_4XX | http_405 | - | - | - |
| 2026-09-15T09:34:02.087Z | REL-SNAP-042 | HTTP_4XX | http_405 | - | - | - |
| 2026-09-16T09:58:56.888Z | REL-SNAP-043 | HTTP_4XX | http_405 | - | - | - |
| 2026-09-17T09:43:11.459Z | REL-SNAP-044 | HTTP_4XX | http_405 | - | - | - |
| 2026-09-18T09:33:01.309Z | REL-SNAP-045 | HTTP_4XX | http_405 | - | - | - |
| 2026-09-19T09:18:44.996Z | REL-SNAP-046 | HTTP_4XX | http_405 | - | - | - |
| 2026-09-20T09:34:10.664Z | REL-SNAP-047 | HTTP_4XX | http_405 | - | - | - |
| 2026-09-21T09:15:30.506Z | REL-SNAP-048 | HTTP_4XX | http_405 | - | - | - |
| 2026-09-22T09:30:34.684Z | REL-SNAP-049 | HTTP_4XX | http_405 | - | - | - |
| 2026-09-23T09:51:22.991Z | REL-SNAP-050 | HTTP_4XX | http_405 | - | - | - |
| 2026-09-24T09:47:04.340Z | REL-SNAP-051 | HTTP_4XX | http_405 | - | - | - |
| 2026-09-25T09:44:28.889Z | REL-SNAP-052 | HTTP_4XX | http_405 | - | - | - |
| 2026-09-26T09:20:40.117Z | REL-SNAP-053 | HTTP_4XX | http_405 | - | - | - |
| 2026-09-27T09:33:28.809Z | REL-SNAP-054 | HTTP_4XX | http_405 | - | - | - |
| 2026-09-28T09:47:31.572Z | REL-SNAP-055 | HTTP_4XX | http_405 | - | - | - |
| 2026-09-29T09:35:18.335Z | REL-SNAP-056 | HTTP_4XX | http_405 | - | - | - |
| 2026-09-30T09:39:27.873Z | REL-SNAP-057 | HTTP_4XX | http_405 | - | - | - |
| 2026-10-01T09:15:10.066Z | REL-SNAP-058 | HTTP_4XX | http_405 | - | - | - |
| 2026-10-02T09:11:18.620Z | REL-SNAP-059 | HTTP_4XX | http_405 | - | - | - |

## Identity

Record key: api.callboard.fm/sse (the normalised endpoint observed)
Registry names (not anchored — no inclusion proof reaches this field): fm.callboard/connector (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.