> 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.

# jp-calendar.plugrail.dev/mcp

Last observed: 2026-08-30T08:50:39.390Z
Recorded as: OK
Transport: streamable-http
Observations held: 25
Published: yes

## Observations

| Observed | Snapshot | Recorded as | Detail | Latency ms | Tools | Tool schema fingerprint |
|---|---|---|---|---|---|---|
| 2026-08-06T17:49:31.032Z | REL-SNAP-002 | OK | - | 64 | 4 | 36d9fb05a202cb249139fd6bb0b5f9036c7bad8fef4151c5da97c48696b82e55 |
| 2026-08-07T08:35:41.687Z | REL-SNAP-003 | OK | - | 70 | 4 | 36d9fb05a202cb249139fd6bb0b5f9036c7bad8fef4151c5da97c48696b82e55 |
| 2026-08-08T10:17:06.833Z | REL-SNAP-004 | OK | - | 177 | 4 | 36d9fb05a202cb249139fd6bb0b5f9036c7bad8fef4151c5da97c48696b82e55 |
| 2026-08-09T08:58:33.485Z | REL-SNAP-005 | OK | - | 87 | 4 | 36d9fb05a202cb249139fd6bb0b5f9036c7bad8fef4151c5da97c48696b82e55 |
| 2026-08-10T08:56:02.033Z | REL-SNAP-006 | OK | - | 300 | 4 | 36d9fb05a202cb249139fd6bb0b5f9036c7bad8fef4151c5da97c48696b82e55 |
| 2026-08-11T08:59:36.552Z | REL-SNAP-007 | OK | - | 90 | 4 | 36d9fb05a202cb249139fd6bb0b5f9036c7bad8fef4151c5da97c48696b82e55 |
| 2026-08-12T08:58:20.086Z | REL-SNAP-008 | OK | - | 133 | 4 | 36d9fb05a202cb249139fd6bb0b5f9036c7bad8fef4151c5da97c48696b82e55 |
| 2026-08-13T08:52:25.014Z | REL-SNAP-009 | OK | - | 153 | 4 | 36d9fb05a202cb249139fd6bb0b5f9036c7bad8fef4151c5da97c48696b82e55 |
| 2026-08-14T09:04:32.771Z | REL-SNAP-010 | OK | - | 132 | 4 | 36d9fb05a202cb249139fd6bb0b5f9036c7bad8fef4151c5da97c48696b82e55 |
| 2026-08-15T08:54:56.091Z | REL-SNAP-011 | OK | - | 95 | 4 | 36d9fb05a202cb249139fd6bb0b5f9036c7bad8fef4151c5da97c48696b82e55 |
| 2026-08-16T08:55:35.187Z | REL-SNAP-012 | OK | - | 141 | 4 | 36d9fb05a202cb249139fd6bb0b5f9036c7bad8fef4151c5da97c48696b82e55 |
| 2026-08-17T11:26:50.456Z | REL-SNAP-013 | OK | - | 112 | 4 | 36d9fb05a202cb249139fd6bb0b5f9036c7bad8fef4151c5da97c48696b82e55 |
| 2026-08-18T08:54:10.593Z | REL-SNAP-014 | OK | - | 105 | 4 | 36d9fb05a202cb249139fd6bb0b5f9036c7bad8fef4151c5da97c48696b82e55 |
| 2026-08-19T08:44:59.585Z | REL-SNAP-015 | OK | - | 338 | 4 | 36d9fb05a202cb249139fd6bb0b5f9036c7bad8fef4151c5da97c48696b82e55 |
| 2026-08-20T08:53:22.517Z | REL-SNAP-016 | OK | - | 190 | 4 | 36d9fb05a202cb249139fd6bb0b5f9036c7bad8fef4151c5da97c48696b82e55 |
| 2026-08-21T09:09:09.812Z | REL-SNAP-017 | OK | - | 371 | 4 | 36d9fb05a202cb249139fd6bb0b5f9036c7bad8fef4151c5da97c48696b82e55 |
| 2026-08-22T08:46:11.859Z | REL-SNAP-018 | OK | - | 122 | 4 | 36d9fb05a202cb249139fd6bb0b5f9036c7bad8fef4151c5da97c48696b82e55 |
| 2026-08-23T09:47:19.557Z | REL-SNAP-019 | OK | - | 224 | 4 | 36d9fb05a202cb249139fd6bb0b5f9036c7bad8fef4151c5da97c48696b82e55 |
| 2026-08-24T08:49:30.162Z | REL-SNAP-020 | OK | - | 146 | 4 | 36d9fb05a202cb249139fd6bb0b5f9036c7bad8fef4151c5da97c48696b82e55 |
| 2026-08-25T08:51:24.319Z | REL-SNAP-021 | OK | - | 440 | 4 | 36d9fb05a202cb249139fd6bb0b5f9036c7bad8fef4151c5da97c48696b82e55 |
| 2026-08-26T08:47:39.535Z | REL-SNAP-022 | OK | - | 299 | 4 | 36d9fb05a202cb249139fd6bb0b5f9036c7bad8fef4151c5da97c48696b82e55 |
| 2026-08-27T09:00:15.687Z | REL-SNAP-023 | OK | - | 412 | 4 | 36d9fb05a202cb249139fd6bb0b5f9036c7bad8fef4151c5da97c48696b82e55 |
| 2026-08-28T08:58:37.313Z | REL-SNAP-024 | OK | - | 539 | 4 | 36d9fb05a202cb249139fd6bb0b5f9036c7bad8fef4151c5da97c48696b82e55 |
| 2026-08-29T08:48:38.962Z | REL-SNAP-025 | OK | - | 283 | 4 | 36d9fb05a202cb249139fd6bb0b5f9036c7bad8fef4151c5da97c48696b82e55 |
| 2026-08-30T08:50:39.390Z | REL-SNAP-026 | OK | - | 488 | 4 | 36d9fb05a202cb249139fd6bb0b5f9036c7bad8fef4151c5da97c48696b82e55 |

## Identity

Record key: jp-calendar.plugrail.dev/mcp (the normalised endpoint observed)
Registry names (not anchored — no inclusion proof reaches this field): dev.plugrail/jp-calendar (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: jp-calendar (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.