> 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.

# mcp-open.playfrog.games/mcp

Last observed: 2026-08-30T09:04:37.652Z
Recorded as: OK
Transport: streamable-http
Observations held: 18
Published: yes

## Observations

| Observed | Snapshot | Recorded as | Detail | Latency ms | Tools | Tool schema fingerprint |
|---|---|---|---|---|---|---|
| 2026-08-13T09:13:20.648Z | REL-SNAP-009 | OK | - | 1040 | 2 | 3a88b246aca554f4ec0ba6e9d13cc95e3f0d1d729603aa7ebebc4fb44236a452 |
| 2026-08-14T09:26:40.813Z | REL-SNAP-010 | OK | - | 1129 | 2 | 3a88b246aca554f4ec0ba6e9d13cc95e3f0d1d729603aa7ebebc4fb44236a452 |
| 2026-08-15T09:16:31.744Z | REL-SNAP-011 | OK | - | 1009 | 2 | 3a88b246aca554f4ec0ba6e9d13cc95e3f0d1d729603aa7ebebc4fb44236a452 |
| 2026-08-16T09:18:18.022Z | REL-SNAP-012 | OK | - | 948 | 2 | 3a88b246aca554f4ec0ba6e9d13cc95e3f0d1d729603aa7ebebc4fb44236a452 |
| 2026-08-17T11:47:12.534Z | REL-SNAP-013 | OK | - | 891 | 2 | 3a88b246aca554f4ec0ba6e9d13cc95e3f0d1d729603aa7ebebc4fb44236a452 |
| 2026-08-18T09:15:29.630Z | REL-SNAP-014 | OK | - | 1134 | 2 | 3a88b246aca554f4ec0ba6e9d13cc95e3f0d1d729603aa7ebebc4fb44236a452 |
| 2026-08-19T08:59:19.824Z | REL-SNAP-015 | OK | - | 572 | 2 | 3a88b246aca554f4ec0ba6e9d13cc95e3f0d1d729603aa7ebebc4fb44236a452 |
| 2026-08-20T09:07:40.599Z | REL-SNAP-016 | OK | - | 784 | 2 | 3a88b246aca554f4ec0ba6e9d13cc95e3f0d1d729603aa7ebebc4fb44236a452 |
| 2026-08-21T09:23:12.073Z | REL-SNAP-017 | OK | - | 791 | 2 | 3a88b246aca554f4ec0ba6e9d13cc95e3f0d1d729603aa7ebebc4fb44236a452 |
| 2026-08-22T08:59:44.469Z | REL-SNAP-018 | OK | - | 839 | 2 | 3a88b246aca554f4ec0ba6e9d13cc95e3f0d1d729603aa7ebebc4fb44236a452 |
| 2026-08-23T10:00:32.564Z | REL-SNAP-019 | OK | - | 758 | 2 | 3a88b246aca554f4ec0ba6e9d13cc95e3f0d1d729603aa7ebebc4fb44236a452 |
| 2026-08-24T09:03:15.809Z | REL-SNAP-020 | OK | - | 866 | 2 | 3a88b246aca554f4ec0ba6e9d13cc95e3f0d1d729603aa7ebebc4fb44236a452 |
| 2026-08-25T09:05:37.910Z | REL-SNAP-021 | OK | - | 1052 | 2 | 3a88b246aca554f4ec0ba6e9d13cc95e3f0d1d729603aa7ebebc4fb44236a452 |
| 2026-08-26T09:01:58.081Z | REL-SNAP-022 | OK | - | 1022 | 2 | 3a88b246aca554f4ec0ba6e9d13cc95e3f0d1d729603aa7ebebc4fb44236a452 |
| 2026-08-27T09:15:17.787Z | REL-SNAP-023 | OK | - | 1322 | 2 | 3a88b246aca554f4ec0ba6e9d13cc95e3f0d1d729603aa7ebebc4fb44236a452 |
| 2026-08-28T09:13:10.289Z | REL-SNAP-024 | OK | - | 759 | 2 | 3a88b246aca554f4ec0ba6e9d13cc95e3f0d1d729603aa7ebebc4fb44236a452 |
| 2026-08-29T09:02:42.576Z | REL-SNAP-025 | OK | - | 805 | 2 | 3a88b246aca554f4ec0ba6e9d13cc95e3f0d1d729603aa7ebebc4fb44236a452 |
| 2026-08-30T09:04:37.652Z | REL-SNAP-026 | OK | - | 835 | 2 | 3a88b246aca554f4ec0ba6e9d13cc95e3f0d1d729603aa7ebebc4fb44236a452 |

## Identity

Record key: mcp-open.playfrog.games/mcp (the normalised endpoint observed)
Registry names (not anchored — no inclusion proof reaches this field): games.playfrog/publish (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: playfrog (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.