> 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.

# met-museum.caseyjhand.com/mcp

Last observed: 2026-08-30T09:13:04.019Z
Recorded as: OK
Transport: streamable-http
Observations held: 25
Published: yes

## Observations

| Observed | Snapshot | Recorded as | Detail | Latency ms | Tools | Tool schema fingerprint |
|---|---|---|---|---|---|---|
| 2026-08-06T17:52:44.954Z | REL-SNAP-002 | OK | - | 567 | 3 | bf070a18aaa62bcf1deecf254f91a6d473fa52017fa09e8cf45792ba0749c201 |
| 2026-08-07T08:38:56.072Z | REL-SNAP-003 | OK | - | 592 | 3 | bf070a18aaa62bcf1deecf254f91a6d473fa52017fa09e8cf45792ba0749c201 |
| 2026-08-08T10:20:17.097Z | REL-SNAP-004 | HTTP_5XX | http_530 | - | - | - |
| 2026-08-09T09:01:37.367Z | REL-SNAP-005 | HTTP_5XX | http_530 | - | - | - |
| 2026-08-10T08:59:31.983Z | REL-SNAP-006 | OK | - | 667 | 3 | bf070a18aaa62bcf1deecf254f91a6d473fa52017fa09e8cf45792ba0749c201 |
| 2026-08-11T09:03:04.211Z | REL-SNAP-007 | OK | - | 732 | 3 | bf070a18aaa62bcf1deecf254f91a6d473fa52017fa09e8cf45792ba0749c201 |
| 2026-08-12T09:01:47.836Z | REL-SNAP-008 | OK | - | 644 | 3 | bf070a18aaa62bcf1deecf254f91a6d473fa52017fa09e8cf45792ba0749c201 |
| 2026-08-13T08:55:36.180Z | REL-SNAP-009 | OK | - | 553 | 3 | bf070a18aaa62bcf1deecf254f91a6d473fa52017fa09e8cf45792ba0749c201 |
| 2026-08-14T09:07:53.063Z | REL-SNAP-010 | OK | - | 606 | 3 | bf070a18aaa62bcf1deecf254f91a6d473fa52017fa09e8cf45792ba0749c201 |
| 2026-08-15T08:58:18.479Z | REL-SNAP-011 | OK | - | 554 | 3 | bf070a18aaa62bcf1deecf254f91a6d473fa52017fa09e8cf45792ba0749c201 |
| 2026-08-16T08:59:06.516Z | REL-SNAP-012 | OK | - | 560 | 3 | bf070a18aaa62bcf1deecf254f91a6d473fa52017fa09e8cf45792ba0749c201 |
| 2026-08-17T11:30:03.936Z | REL-SNAP-013 | OK | - | 623 | 3 | bf070a18aaa62bcf1deecf254f91a6d473fa52017fa09e8cf45792ba0749c201 |
| 2026-08-18T08:57:39.775Z | REL-SNAP-014 | OK | - | 560 | 3 | bf070a18aaa62bcf1deecf254f91a6d473fa52017fa09e8cf45792ba0749c201 |
| 2026-08-19T08:47:12.129Z | REL-SNAP-015 | OK | - | 414 | 3 | bf070a18aaa62bcf1deecf254f91a6d473fa52017fa09e8cf45792ba0749c201 |
| 2026-08-20T08:55:41.132Z | REL-SNAP-016 | OK | - | 483 | 3 | bf070a18aaa62bcf1deecf254f91a6d473fa52017fa09e8cf45792ba0749c201 |
| 2026-08-21T09:11:24.277Z | REL-SNAP-017 | OK | - | 495 | 3 | bf070a18aaa62bcf1deecf254f91a6d473fa52017fa09e8cf45792ba0749c201 |
| 2026-08-22T08:48:22.774Z | REL-SNAP-018 | OK | - | 477 | 3 | bf070a18aaa62bcf1deecf254f91a6d473fa52017fa09e8cf45792ba0749c201 |
| 2026-08-23T10:08:49.648Z | REL-SNAP-019 | OK | - | 416 | 3 | 9bdd2a48d7b6fac2cdb3c644f5b3f90f1d7e479509570e4524c610159cb5e4a5 |
| 2026-08-24T09:12:01.487Z | REL-SNAP-020 | OK | - | 274 | 3 | 9bdd2a48d7b6fac2cdb3c644f5b3f90f1d7e479509570e4524c610159cb5e4a5 |
| 2026-08-25T09:14:04.387Z | REL-SNAP-021 | OK | - | 435 | 3 | 9bdd2a48d7b6fac2cdb3c644f5b3f90f1d7e479509570e4524c610159cb5e4a5 |
| 2026-08-26T09:10:21.460Z | REL-SNAP-022 | OK | - | 423 | 3 | 9bdd2a48d7b6fac2cdb3c644f5b3f90f1d7e479509570e4524c610159cb5e4a5 |
| 2026-08-27T09:24:09.101Z | REL-SNAP-023 | OK | - | 274 | 3 | 9bdd2a48d7b6fac2cdb3c644f5b3f90f1d7e479509570e4524c610159cb5e4a5 |
| 2026-08-28T09:20:59.113Z | REL-SNAP-024 | OK | - | 276 | 3 | 9bdd2a48d7b6fac2cdb3c644f5b3f90f1d7e479509570e4524c610159cb5e4a5 |
| 2026-08-29T09:10:59.420Z | REL-SNAP-025 | OK | - | 256 | 3 | 9bdd2a48d7b6fac2cdb3c644f5b3f90f1d7e479509570e4524c610159cb5e4a5 |
| 2026-08-30T09:13:04.019Z | REL-SNAP-026 | OK | - | 405 | 3 | 9bdd2a48d7b6fac2cdb3c644f5b3f90f1d7e479509570e4524c610159cb5e4a5 |

## Identity

Record key: met-museum.caseyjhand.com/mcp (the normalised endpoint observed)
Registry names (not anchored — no inclusion proof reaches this field): io.github.cyanheads/met-museum-mcp-server (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: met-museum-mcp-server (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.