> 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.

# 402signal.com/mcp

Last observed: 2026-10-02T09:12:31.478Z
Recorded as: PROTOCOL_ERROR (fetch_failed)
Transport: streamable-http
Observations held: 33
Published: yes

## Observations

| Observed | Snapshot | Recorded as | Detail | Latency ms | Tools | Tool schema fingerprint |
|---|---|---|---|---|---|---|
| 2026-08-31T09:25:01.992Z | REL-SNAP-027 | OK | - | 418 | 3 | 06a7e3ca1b38fe8302ea52ba16dce0fce85ce918fe090212d5e054bfc08f3a4d |
| 2026-09-01T09:19:32.516Z | REL-SNAP-028 | OK | - | 489 | 3 | 8226c18929e5d8aa254eb27537451d6ce0c6ab5eba48da2465c3ebfc7211f361 |
| 2026-09-02T09:25:50.461Z | REL-SNAP-029 | OK | - | 336 | 3 | 3eac1c0a6d031fb043ce640ed611218b1cf16ba63ee1e9b97ddd0e0b86cb1f50 |
| 2026-09-03T09:46:56.646Z | REL-SNAP-030 | OK | - | 559 | 3 | 6fe862a8fb23f77899b2aa625a4dc6d13ee8dae414e0bece631d4c427ec98177 |
| 2026-09-04T09:37:31.150Z | REL-SNAP-031 | OK | - | 475 | 3 | 08514950fe2606ee779ec1eea2c0cf08d4e3b96b78eb85eca3eb2c569bafe178 |
| 2026-09-05T09:22:11.867Z | REL-SNAP-032 | OK | - | 611 | 3 | 0bd1ac53e3339b20dbabc199c611338b0465b916210212094e0f947a1bb0289f |
| 2026-09-06T09:30:58.541Z | REL-SNAP-033 | OK | - | 415 | 3 | 96e9cb24f843c9479bf4db49e1c855711a9cc307a4c795841f8a7094dbdbd5e4 |
| 2026-09-07T09:55:21.140Z | REL-SNAP-034 | OK | - | 419 | 3 | 96e9cb24f843c9479bf4db49e1c855711a9cc307a4c795841f8a7094dbdbd5e4 |
| 2026-09-08T09:46:55.959Z | REL-SNAP-035 | OK | - | 444 | 3 | 1d6486b170ac3f3cefa4f793b3c217782d692c17a17fad4c41c59649b08b6924 |
| 2026-09-09T09:30:28.157Z | REL-SNAP-036 | OK | - | 356 | 3 | 1d6486b170ac3f3cefa4f793b3c217782d692c17a17fad4c41c59649b08b6924 |
| 2026-09-10T09:24:00.779Z | REL-SNAP-037 | OK | - | 416 | 3 | 7aef60d3e26e131544e704cf46d8bd079ccecfd77147fbc8bca895486674ebc7 |
| 2026-09-11T09:23:16.677Z | REL-SNAP-038 | OK | - | 392 | 3 | f42bc6399fd3f718e921f220f5f3c3811002d4c32b510a3c058e101293e1991a |
| 2026-09-12T09:14:45.186Z | REL-SNAP-039 | OK | - | 444 | 3 | f42bc6399fd3f718e921f220f5f3c3811002d4c32b510a3c058e101293e1991a |
| 2026-09-13T09:42:04.892Z | REL-SNAP-040 | OK | - | 356 | 3 | f42bc6399fd3f718e921f220f5f3c3811002d4c32b510a3c058e101293e1991a |
| 2026-09-14T09:42:11.184Z | REL-SNAP-041 | OK | - | 333 | 3 | 9927fb6adcaa7528371d381e5016b4f5f0b479a197d35b66601278db8440ff69 |
| 2026-09-15T09:35:38.151Z | REL-SNAP-042 | OK | - | 416 | 3 | a3d67297f3deaf2c56924b9aa5f1fef07e7e5fa11877dc35f306dcb376240f2f |
| 2026-09-16T10:00:27.698Z | REL-SNAP-043 | OK | - | 406 | 3 | a3d67297f3deaf2c56924b9aa5f1fef07e7e5fa11877dc35f306dcb376240f2f |
| 2026-09-17T09:44:27.234Z | REL-SNAP-044 | OK | - | 377 | 3 | a3d67297f3deaf2c56924b9aa5f1fef07e7e5fa11877dc35f306dcb376240f2f |
| 2026-09-18T09:34:27.768Z | REL-SNAP-045 | OK | - | 367 | 3 | a3d67297f3deaf2c56924b9aa5f1fef07e7e5fa11877dc35f306dcb376240f2f |
| 2026-09-19T09:20:09.772Z | REL-SNAP-046 | OK | - | 360 | 3 | a3d67297f3deaf2c56924b9aa5f1fef07e7e5fa11877dc35f306dcb376240f2f |
| 2026-09-20T09:35:34.998Z | REL-SNAP-047 | OK | - | 364 | 3 | a3d67297f3deaf2c56924b9aa5f1fef07e7e5fa11877dc35f306dcb376240f2f |
| 2026-09-21T09:16:52.767Z | REL-SNAP-048 | OK | - | 441 | 3 | a3d67297f3deaf2c56924b9aa5f1fef07e7e5fa11877dc35f306dcb376240f2f |
| 2026-09-22T09:31:58.166Z | REL-SNAP-049 | OK | - | 417 | 3 | a3d67297f3deaf2c56924b9aa5f1fef07e7e5fa11877dc35f306dcb376240f2f |
| 2026-09-23T09:52:42.669Z | REL-SNAP-050 | OK | - | 334 | 3 | a3d67297f3deaf2c56924b9aa5f1fef07e7e5fa11877dc35f306dcb376240f2f |
| 2026-09-24T09:48:41.083Z | REL-SNAP-051 | OK | - | 332 | 3 | a3d67297f3deaf2c56924b9aa5f1fef07e7e5fa11877dc35f306dcb376240f2f |
| 2026-09-25T09:45:41.936Z | REL-SNAP-052 | OK | - | 325 | 3 | a3d67297f3deaf2c56924b9aa5f1fef07e7e5fa11877dc35f306dcb376240f2f |
| 2026-09-26T09:22:03.345Z | REL-SNAP-053 | OK | - | 322 | 3 | a3d67297f3deaf2c56924b9aa5f1fef07e7e5fa11877dc35f306dcb376240f2f |
| 2026-09-27T09:34:46.994Z | REL-SNAP-054 | OK | - | 421 | 3 | a3d67297f3deaf2c56924b9aa5f1fef07e7e5fa11877dc35f306dcb376240f2f |
| 2026-09-28T09:48:50.670Z | REL-SNAP-055 | OK | - | 421 | 3 | a3d67297f3deaf2c56924b9aa5f1fef07e7e5fa11877dc35f306dcb376240f2f |
| 2026-09-29T09:36:34.986Z | REL-SNAP-056 | OK | - | 399 | 3 | a3d67297f3deaf2c56924b9aa5f1fef07e7e5fa11877dc35f306dcb376240f2f |
| 2026-09-30T09:40:44.784Z | REL-SNAP-057 | OK | - | 331 | 3 | a3d67297f3deaf2c56924b9aa5f1fef07e7e5fa11877dc35f306dcb376240f2f |
| 2026-10-01T09:16:25.621Z | REL-SNAP-058 | PROTOCOL_ERROR | fetch_failed | - | - | - |
| 2026-10-02T09:12:31.478Z | REL-SNAP-059 | PROTOCOL_ERROR | fetch_failed | - | - | - |

## Identity

Record key: 402signal.com/mcp (the normalised endpoint observed)
Registry names (not anchored — no inclusion proof reaches this field): io.github.402signal/402signal (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.