> 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.

# 404.directory/mcp

Last observed: 2026-10-02T09:12:11.038Z
Recorded as: OK
Transport: streamable-http
Observations held: 47
Published: yes

## Observations

| Observed | Snapshot | Recorded as | Detail | Latency ms | Tools | Tool schema fingerprint |
|---|---|---|---|---|---|---|
| 2026-08-17T11:50:45.462Z | REL-SNAP-013 | OK | - | 5456 | 2 | 1bcd50128f8122c6ee8376be89d7b069c96d913ac2d2b5de820aa273170a8d46 |
| 2026-08-18T09:19:45.335Z | REL-SNAP-014 | OK | - | 5556 | 2 | 1bcd50128f8122c6ee8376be89d7b069c96d913ac2d2b5de820aa273170a8d46 |
| 2026-08-19T09:02:20.367Z | REL-SNAP-015 | OK | - | 251 | 2 | 1bcd50128f8122c6ee8376be89d7b069c96d913ac2d2b5de820aa273170a8d46 |
| 2026-08-20T09:10:25.158Z | REL-SNAP-016 | OK | - | 276 | 2 | 1bcd50128f8122c6ee8376be89d7b069c96d913ac2d2b5de820aa273170a8d46 |
| 2026-08-21T09:25:57.077Z | REL-SNAP-017 | OK | - | 885 | 2 | 1bcd50128f8122c6ee8376be89d7b069c96d913ac2d2b5de820aa273170a8d46 |
| 2026-08-22T09:06:55.299Z | REL-SNAP-018 | OK | - | 917 | - | - |
| 2026-08-23T10:09:13.693Z | REL-SNAP-019 | OK | - | 1619 | - | - |
| 2026-08-24T09:12:39.119Z | REL-SNAP-020 | OK | - | 1022 | - | - |
| 2026-08-25T09:15:37.261Z | REL-SNAP-021 | OK | - | 1217 | - | - |
| 2026-08-26T09:11:45.801Z | REL-SNAP-022 | OK | - | 1172 | - | - |
| 2026-08-27T09:29:04.853Z | REL-SNAP-023 | OK | - | 1150 | - | - |
| 2026-08-28T09:25:51.671Z | REL-SNAP-024 | OK | - | 1369 | - | - |
| 2026-08-29T09:15:32.771Z | REL-SNAP-025 | OK | - | 903 | - | - |
| 2026-08-30T09:21:17.893Z | REL-SNAP-026 | OK | - | 736 | - | - |
| 2026-08-31T09:24:28.403Z | REL-SNAP-027 | OK | - | 1295 | - | - |
| 2026-09-01T09:19:01.038Z | REL-SNAP-028 | OK | - | 645 | - | - |
| 2026-09-02T09:25:28.456Z | REL-SNAP-029 | OK | - | 976 | - | - |
| 2026-09-03T09:46:28.165Z | REL-SNAP-030 | OK | - | 875 | - | - |
| 2026-09-04T09:37:02.246Z | REL-SNAP-031 | OK | - | 884 | - | - |
| 2026-09-05T09:21:43.047Z | REL-SNAP-032 | OK | - | 2023 | - | - |
| 2026-09-06T09:30:27.313Z | REL-SNAP-033 | OK | - | 1223 | - | - |
| 2026-09-07T09:54:54.017Z | REL-SNAP-034 | OK | - | 1183 | - | - |
| 2026-09-08T09:46:31.228Z | REL-SNAP-035 | OK | - | 1076 | - | - |
| 2026-09-09T09:30:03.747Z | REL-SNAP-036 | OK | - | 967 | - | - |
| 2026-09-10T09:23:38.310Z | REL-SNAP-037 | OK | - | 810 | - | - |
| 2026-09-11T09:22:54.818Z | REL-SNAP-038 | OK | - | 1001 | - | - |
| 2026-09-12T09:14:20.120Z | REL-SNAP-039 | OK | - | 2019 | - | - |
| 2026-09-13T09:41:39.363Z | REL-SNAP-040 | OK | - | 798 | - | - |
| 2026-09-14T09:41:48.147Z | REL-SNAP-041 | OK | - | 646 | - | - |
| 2026-09-15T09:35:08.173Z | REL-SNAP-042 | OK | - | 1956 | - | - |
| 2026-09-16T09:59:59.778Z | REL-SNAP-043 | OK | - | 1256 | - | - |
| 2026-09-17T09:44:09.070Z | REL-SNAP-044 | OK | - | 1347 | - | - |
| 2026-09-18T09:34:02.294Z | REL-SNAP-045 | OK | - | 682 | - | - |
| 2026-09-19T09:19:45.633Z | REL-SNAP-046 | HTTP_5XX | http_500 | - | - | - |
| 2026-09-20T09:35:12.571Z | REL-SNAP-047 | HTTP_5XX | http_500 | - | - | - |
| 2026-09-21T09:16:32.909Z | REL-SNAP-048 | HTTP_5XX | http_500 | - | - | - |
| 2026-09-22T09:31:38.923Z | REL-SNAP-049 | HTTP_5XX | http_500 | - | - | - |
| 2026-09-23T09:52:23.599Z | REL-SNAP-050 | HTTP_5XX | http_500 | - | - | - |
| 2026-09-24T09:48:10.300Z | REL-SNAP-051 | HTTP_5XX | http_500 | - | - | - |
| 2026-09-25T09:45:25.049Z | REL-SNAP-052 | HTTP_5XX | http_500 | - | - | - |
| 2026-09-26T09:21:42.603Z | REL-SNAP-053 | HTTP_5XX | http_500 | - | - | - |
| 2026-09-27T09:34:28.037Z | REL-SNAP-054 | HTTP_5XX | http_503 | - | - | - |
| 2026-09-28T09:48:32.926Z | REL-SNAP-055 | HTTP_5XX | http_500 | - | - | - |
| 2026-09-29T09:36:16.712Z | REL-SNAP-056 | HTTP_5XX | http_500 | - | - | - |
| 2026-09-30T09:40:24.051Z | REL-SNAP-057 | PROTOCOL_ERROR | post_rejected | - | - | - |
| 2026-10-01T09:16:04.762Z | REL-SNAP-058 | OK | - | 632 | - | - |
| 2026-10-02T09:12:11.038Z | REL-SNAP-059 | OK | - | 1149 | - | - |

## Identity

Record key: 404.directory/mcp (the normalised endpoint observed)
Registry names (not anchored — no inclusion proof reaches this field): io.github.MM-sheng/404-directory (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: 404.directory (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.