> 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.

# siccodes.co.uk/api/mcp

Last observed: 2026-08-30T08:31:35.195Z
Recorded as: HTTP_4XX (http_404)
Transport: streamable-http
Observations held: 25
Published: yes

## Observations

| Observed | Snapshot | Recorded as | Detail | Latency ms | Tools | Tool schema fingerprint |
|---|---|---|---|---|---|---|
| 2026-08-06T17:29:31.423Z | REL-SNAP-002 | HTTP_5XX | http_503 | - | - | - |
| 2026-08-07T08:15:22.555Z | REL-SNAP-003 | HTTP_5XX | http_503 | - | - | - |
| 2026-08-08T09:56:02.240Z | REL-SNAP-004 | HTTP_5XX | http_503 | - | - | - |
| 2026-08-09T08:38:42.414Z | REL-SNAP-005 | HTTP_5XX | http_503 | - | - | - |
| 2026-08-10T08:33:26.426Z | REL-SNAP-006 | HTTP_5XX | http_503 | - | - | - |
| 2026-08-11T08:37:56.125Z | REL-SNAP-007 | HTTP_5XX | http_503 | - | - | - |
| 2026-08-12T08:37:14.209Z | REL-SNAP-008 | HTTP_5XX | http_503 | - | - | - |
| 2026-08-13T08:32:13.423Z | REL-SNAP-009 | RATE_LIMITED | http_429 | - | - | - |
| 2026-08-14T08:41:42.652Z | REL-SNAP-010 | RATE_LIMITED | http_429 | - | - | - |
| 2026-08-15T08:32:27.847Z | REL-SNAP-011 | RATE_LIMITED | http_429 | - | - | - |
| 2026-08-16T08:33:02.929Z | REL-SNAP-012 | RATE_LIMITED | http_429 | - | - | - |
| 2026-08-17T09:09:56.098Z | REL-SNAP-013 | RATE_LIMITED | http_429 | - | - | - |
| 2026-08-18T08:32:27.309Z | REL-SNAP-014 | RATE_LIMITED | http_429 | - | - | - |
| 2026-08-19T08:28:23.383Z | REL-SNAP-015 | RATE_LIMITED | http_429 | - | - | - |
| 2026-08-20T08:36:52.486Z | REL-SNAP-016 | RATE_LIMITED | http_429 | - | - | - |
| 2026-08-21T08:52:46.506Z | REL-SNAP-017 | RATE_LIMITED | http_429 | - | - | - |
| 2026-08-22T08:29:50.215Z | REL-SNAP-018 | RATE_LIMITED | http_429 | - | - | - |
| 2026-08-23T09:30:58.729Z | REL-SNAP-019 | RATE_LIMITED | http_429 | - | - | - |
| 2026-08-24T08:33:14.631Z | REL-SNAP-020 | RATE_LIMITED | http_429 | - | - | - |
| 2026-08-25T08:33:16.022Z | REL-SNAP-021 | HTTP_4XX | http_404 | - | - | - |
| 2026-08-26T08:29:00.305Z | REL-SNAP-022 | HTTP_4XX | http_404 | - | - | - |
| 2026-08-27T08:40:26.240Z | REL-SNAP-023 | HTTP_4XX | http_404 | - | - | - |
| 2026-08-28T08:39:45.542Z | REL-SNAP-024 | HTTP_4XX | http_404 | - | - | - |
| 2026-08-29T08:29:22.954Z | REL-SNAP-025 | HTTP_4XX | http_404 | - | - | - |
| 2026-08-30T08:31:35.195Z | REL-SNAP-026 | HTTP_4XX | http_404 | - | - | - |

## Identity

Record key: siccodes.co.uk/api/mcp (the normalised endpoint observed)
Registry names (not anchored — no inclusion proof reaches this field): io.github.jackmmaher/sic-codes (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.