> 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.

# polygraph.so/api/mcp

Last observed: 2026-08-30T08:54:01.066Z
Recorded as: OK
Transport: streamable-http
Observations held: 25
Published: yes

## Observations

| Observed | Snapshot | Recorded as | Detail | Latency ms | Tools | Tool schema fingerprint |
|---|---|---|---|---|---|---|
| 2026-08-06T17:54:19.675Z | REL-SNAP-002 | OK | - | 596 | 3 | 19fee9a0e4b19de01b42dd5db5d5009050288f8ab1a03b7f9d8301581f960ddd |
| 2026-08-07T08:40:29.241Z | REL-SNAP-003 | OK | - | 896 | 3 | 19fee9a0e4b19de01b42dd5db5d5009050288f8ab1a03b7f9d8301581f960ddd |
| 2026-08-08T10:21:58.239Z | REL-SNAP-004 | OK | - | 629 | 3 | 19fee9a0e4b19de01b42dd5db5d5009050288f8ab1a03b7f9d8301581f960ddd |
| 2026-08-09T09:03:11.881Z | REL-SNAP-005 | OK | - | 616 | 3 | 19fee9a0e4b19de01b42dd5db5d5009050288f8ab1a03b7f9d8301581f960ddd |
| 2026-08-10T09:01:50.360Z | REL-SNAP-006 | OK | - | 925 | 3 | 19fee9a0e4b19de01b42dd5db5d5009050288f8ab1a03b7f9d8301581f960ddd |
| 2026-08-11T09:04:51.046Z | REL-SNAP-007 | OK | - | 701 | 3 | 19fee9a0e4b19de01b42dd5db5d5009050288f8ab1a03b7f9d8301581f960ddd |
| 2026-08-12T09:03:35.891Z | REL-SNAP-008 | OK | - | 662 | 3 | 19fee9a0e4b19de01b42dd5db5d5009050288f8ab1a03b7f9d8301581f960ddd |
| 2026-08-13T08:57:14.568Z | REL-SNAP-009 | OK | - | 659 | 3 | 19fee9a0e4b19de01b42dd5db5d5009050288f8ab1a03b7f9d8301581f960ddd |
| 2026-08-14T09:09:41.466Z | REL-SNAP-010 | OK | - | 719 | 3 | 19fee9a0e4b19de01b42dd5db5d5009050288f8ab1a03b7f9d8301581f960ddd |
| 2026-08-15T09:00:16.066Z | REL-SNAP-011 | OK | - | 634 | 3 | 19fee9a0e4b19de01b42dd5db5d5009050288f8ab1a03b7f9d8301581f960ddd |
| 2026-08-16T09:00:47.163Z | REL-SNAP-012 | OK | - | 662 | 3 | 19fee9a0e4b19de01b42dd5db5d5009050288f8ab1a03b7f9d8301581f960ddd |
| 2026-08-17T11:31:40.266Z | REL-SNAP-013 | OK | - | 651 | 3 | 19fee9a0e4b19de01b42dd5db5d5009050288f8ab1a03b7f9d8301581f960ddd |
| 2026-08-18T08:59:15.662Z | REL-SNAP-014 | OK | - | 663 | 3 | 19fee9a0e4b19de01b42dd5db5d5009050288f8ab1a03b7f9d8301581f960ddd |
| 2026-08-19T08:48:33.800Z | REL-SNAP-015 | OK | - | 340 | 3 | 19fee9a0e4b19de01b42dd5db5d5009050288f8ab1a03b7f9d8301581f960ddd |
| 2026-08-20T08:56:52.731Z | REL-SNAP-016 | OK | - | 327 | 3 | 19fee9a0e4b19de01b42dd5db5d5009050288f8ab1a03b7f9d8301581f960ddd |
| 2026-08-21T09:12:37.693Z | REL-SNAP-017 | OK | - | 442 | 3 | 19fee9a0e4b19de01b42dd5db5d5009050288f8ab1a03b7f9d8301581f960ddd |
| 2026-08-22T08:49:35.833Z | REL-SNAP-018 | OK | - | 382 | 3 | 19fee9a0e4b19de01b42dd5db5d5009050288f8ab1a03b7f9d8301581f960ddd |
| 2026-08-23T09:50:34.007Z | REL-SNAP-019 | OK | - | 633 | 3 | 19fee9a0e4b19de01b42dd5db5d5009050288f8ab1a03b7f9d8301581f960ddd |
| 2026-08-24T08:52:51.585Z | REL-SNAP-020 | OK | - | 442 | 3 | 19fee9a0e4b19de01b42dd5db5d5009050288f8ab1a03b7f9d8301581f960ddd |
| 2026-08-25T08:54:46.241Z | REL-SNAP-021 | OK | - | 478 | 3 | 19fee9a0e4b19de01b42dd5db5d5009050288f8ab1a03b7f9d8301581f960ddd |
| 2026-08-26T08:51:08.613Z | REL-SNAP-022 | OK | - | 351 | 3 | 19fee9a0e4b19de01b42dd5db5d5009050288f8ab1a03b7f9d8301581f960ddd |
| 2026-08-27T09:03:54.147Z | REL-SNAP-023 | OK | - | 373 | 3 | 19fee9a0e4b19de01b42dd5db5d5009050288f8ab1a03b7f9d8301581f960ddd |
| 2026-08-28T09:01:56.077Z | REL-SNAP-024 | OK | - | 427 | 3 | 19fee9a0e4b19de01b42dd5db5d5009050288f8ab1a03b7f9d8301581f960ddd |
| 2026-08-29T08:52:02.408Z | REL-SNAP-025 | OK | - | 360 | 3 | 19fee9a0e4b19de01b42dd5db5d5009050288f8ab1a03b7f9d8301581f960ddd |
| 2026-08-30T08:54:01.066Z | REL-SNAP-026 | OK | - | 509 | 3 | 19fee9a0e4b19de01b42dd5db5d5009050288f8ab1a03b7f9d8301581f960ddd |

## Identity

Record key: polygraph.so/api/mcp (the normalised endpoint observed)
Registry names (not anchored — no inclusion proof reaches this field): io.github.polygraphso/litmus (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: polygraph (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.