> 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.

# www.corewebvitals.io/api/state-of-cwv/mcp

Last observed: 2026-08-30T08:52:27.808Z
Recorded as: OK
Transport: streamable-http
Observations held: 25
Published: yes

## Observations

| Observed | Snapshot | Recorded as | Detail | Latency ms | Tools | Tool schema fingerprint |
|---|---|---|---|---|---|---|
| 2026-08-06T17:52:20.637Z | REL-SNAP-002 | AUTH_REQUIRED | http_403 | - | - | - |
| 2026-08-07T08:38:30.434Z | REL-SNAP-003 | AUTH_REQUIRED | http_403 | - | - | - |
| 2026-08-08T10:19:52.805Z | REL-SNAP-004 | AUTH_REQUIRED | http_403 | - | - | - |
| 2026-08-09T09:01:17.243Z | REL-SNAP-005 | AUTH_REQUIRED | http_403 | - | - | - |
| 2026-08-10T08:59:07.427Z | REL-SNAP-006 | AUTH_REQUIRED | http_403 | - | - | - |
| 2026-08-11T09:02:45.879Z | REL-SNAP-007 | AUTH_REQUIRED | http_403 | - | - | - |
| 2026-08-12T09:01:29.479Z | REL-SNAP-008 | AUTH_REQUIRED | http_403 | - | - | - |
| 2026-08-13T08:55:19.412Z | REL-SNAP-009 | AUTH_REQUIRED | http_403 | - | - | - |
| 2026-08-14T09:07:35.348Z | REL-SNAP-010 | AUTH_REQUIRED | http_403 | - | - | - |
| 2026-08-15T08:57:58.518Z | REL-SNAP-011 | AUTH_REQUIRED | http_403 | - | - | - |
| 2026-08-16T08:58:47.693Z | REL-SNAP-012 | AUTH_REQUIRED | http_403 | - | - | - |
| 2026-08-17T11:29:46.241Z | REL-SNAP-013 | AUTH_REQUIRED | http_403 | - | - | - |
| 2026-08-18T08:57:19.850Z | REL-SNAP-014 | AUTH_REQUIRED | http_403 | - | - | - |
| 2026-08-19T08:46:56.394Z | REL-SNAP-015 | OK | - | 66 | 3 | 8d339218716c8a3c675f743384d46e51cdc487d841bee5877ba73e864712fa30 |
| 2026-08-20T08:55:24.851Z | REL-SNAP-016 | OK | - | 66 | 3 | 8d339218716c8a3c675f743384d46e51cdc487d841bee5877ba73e864712fa30 |
| 2026-08-21T09:11:08.196Z | REL-SNAP-017 | OK | - | 67 | 3 | 8d339218716c8a3c675f743384d46e51cdc487d841bee5877ba73e864712fa30 |
| 2026-08-22T08:48:06.375Z | REL-SNAP-018 | OK | - | 68 | 3 | 8d339218716c8a3c675f743384d46e51cdc487d841bee5877ba73e864712fa30 |
| 2026-08-23T09:49:11.399Z | REL-SNAP-019 | OK | - | 68 | 3 | 8d339218716c8a3c675f743384d46e51cdc487d841bee5877ba73e864712fa30 |
| 2026-08-24T08:51:28.427Z | REL-SNAP-020 | OK | - | 70 | 3 | 8d339218716c8a3c675f743384d46e51cdc487d841bee5877ba73e864712fa30 |
| 2026-08-25T08:53:23.629Z | REL-SNAP-021 | OK | - | 140 | 3 | 8d339218716c8a3c675f743384d46e51cdc487d841bee5877ba73e864712fa30 |
| 2026-08-26T08:49:43.410Z | REL-SNAP-022 | OK | - | 63 | 3 | 8d339218716c8a3c675f743384d46e51cdc487d841bee5877ba73e864712fa30 |
| 2026-08-27T09:02:27.166Z | REL-SNAP-023 | OK | - | 65 | 3 | 8d339218716c8a3c675f743384d46e51cdc487d841bee5877ba73e864712fa30 |
| 2026-08-28T09:00:28.816Z | REL-SNAP-024 | OK | - | 104 | 3 | 8d339218716c8a3c675f743384d46e51cdc487d841bee5877ba73e864712fa30 |
| 2026-08-29T08:50:36.737Z | REL-SNAP-025 | OK | - | 73 | 3 | 8d339218716c8a3c675f743384d46e51cdc487d841bee5877ba73e864712fa30 |
| 2026-08-30T08:52:27.808Z | REL-SNAP-026 | OK | - | 133 | 3 | 8d339218716c8a3c675f743384d46e51cdc487d841bee5877ba73e864712fa30 |

## Identity

Record key: www.corewebvitals.io/api/state-of-cwv/mcp (the normalised endpoint observed)
Registry names (not anchored — no inclusion proof reaches this field): io.github.corewebvitals/state-of-cwv (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: state-of-cwv (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.