> 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.

# mcpcalc.com/api/v1/mcp

Last observed: 2026-08-30T08:23:36.219Z
Recorded as: OK
Transport: streamable-http
Observations held: 25
Published: yes

## Observations

| Observed | Snapshot | Recorded as | Detail | Latency ms | Tools | Tool schema fingerprint |
|---|---|---|---|---|---|---|
| 2026-08-06T17:20:54.257Z | REL-SNAP-002 | OK | - | 40 | 10 | 9f78dbe522ea1916ac814d1a83124fbdfac2e7fb3f06293f62c64cc8439567b4 |
| 2026-08-07T08:06:21.453Z | REL-SNAP-003 | OK | - | 40 | 10 | 9f78dbe522ea1916ac814d1a83124fbdfac2e7fb3f06293f62c64cc8439567b4 |
| 2026-08-08T09:46:01.867Z | REL-SNAP-004 | OK | - | 36 | 10 | 9f78dbe522ea1916ac814d1a83124fbdfac2e7fb3f06293f62c64cc8439567b4 |
| 2026-08-09T08:29:45.152Z | REL-SNAP-005 | OK | - | 138 | 10 | 9f78dbe522ea1916ac814d1a83124fbdfac2e7fb3f06293f62c64cc8439567b4 |
| 2026-08-10T08:23:37.417Z | REL-SNAP-006 | OK | - | 115 | 10 | 9f78dbe522ea1916ac814d1a83124fbdfac2e7fb3f06293f62c64cc8439567b4 |
| 2026-08-11T08:28:02.748Z | REL-SNAP-007 | OK | - | 39 | 10 | 9f78dbe522ea1916ac814d1a83124fbdfac2e7fb3f06293f62c64cc8439567b4 |
| 2026-08-12T08:27:41.435Z | REL-SNAP-008 | OK | - | 83 | 10 | 9f78dbe522ea1916ac814d1a83124fbdfac2e7fb3f06293f62c64cc8439567b4 |
| 2026-08-13T08:22:52.272Z | REL-SNAP-009 | OK | - | 39 | 10 | 9f78dbe522ea1916ac814d1a83124fbdfac2e7fb3f06293f62c64cc8439567b4 |
| 2026-08-14T08:31:22.738Z | REL-SNAP-010 | OK | - | 45 | 10 | 9f78dbe522ea1916ac814d1a83124fbdfac2e7fb3f06293f62c64cc8439567b4 |
| 2026-08-15T08:22:23.373Z | REL-SNAP-011 | OK | - | 84 | 10 | 9f78dbe522ea1916ac814d1a83124fbdfac2e7fb3f06293f62c64cc8439567b4 |
| 2026-08-16T08:23:18.163Z | REL-SNAP-012 | OK | - | 41 | 10 | 9f78dbe522ea1916ac814d1a83124fbdfac2e7fb3f06293f62c64cc8439567b4 |
| 2026-08-17T09:00:18.239Z | REL-SNAP-013 | OK | - | 42 | 10 | 9f78dbe522ea1916ac814d1a83124fbdfac2e7fb3f06293f62c64cc8439567b4 |
| 2026-08-18T08:23:02.213Z | REL-SNAP-014 | OK | - | 38 | 10 | 9f78dbe522ea1916ac814d1a83124fbdfac2e7fb3f06293f62c64cc8439567b4 |
| 2026-08-19T08:21:16.175Z | REL-SNAP-015 | OK | - | 66 | 10 | 9f78dbe522ea1916ac814d1a83124fbdfac2e7fb3f06293f62c64cc8439567b4 |
| 2026-08-20T08:29:32.032Z | REL-SNAP-016 | OK | - | 58 | 10 | 9f78dbe522ea1916ac814d1a83124fbdfac2e7fb3f06293f62c64cc8439567b4 |
| 2026-08-21T08:45:45.649Z | REL-SNAP-017 | OK | - | 58 | 10 | 9f78dbe522ea1916ac814d1a83124fbdfac2e7fb3f06293f62c64cc8439567b4 |
| 2026-08-22T08:22:27.699Z | REL-SNAP-018 | OK | - | 54 | 10 | 9f78dbe522ea1916ac814d1a83124fbdfac2e7fb3f06293f62c64cc8439567b4 |
| 2026-08-23T09:23:42.954Z | REL-SNAP-019 | OK | - | 56 | 10 | 9f78dbe522ea1916ac814d1a83124fbdfac2e7fb3f06293f62c64cc8439567b4 |
| 2026-08-24T08:25:48.245Z | REL-SNAP-020 | OK | - | 58 | 10 | 9f78dbe522ea1916ac814d1a83124fbdfac2e7fb3f06293f62c64cc8439567b4 |
| 2026-08-25T08:25:39.787Z | REL-SNAP-021 | OK | - | 63 | 10 | 9f78dbe522ea1916ac814d1a83124fbdfac2e7fb3f06293f62c64cc8439567b4 |
| 2026-08-26T08:21:13.802Z | REL-SNAP-022 | OK | - | 56 | 10 | 9f78dbe522ea1916ac814d1a83124fbdfac2e7fb3f06293f62c64cc8439567b4 |
| 2026-08-27T08:32:19.713Z | REL-SNAP-023 | OK | - | 76 | 10 | 9f78dbe522ea1916ac814d1a83124fbdfac2e7fb3f06293f62c64cc8439567b4 |
| 2026-08-28T08:31:56.712Z | REL-SNAP-024 | OK | - | 68 | 10 | 9f78dbe522ea1916ac814d1a83124fbdfac2e7fb3f06293f62c64cc8439567b4 |
| 2026-08-29T08:21:24.906Z | REL-SNAP-025 | OK | - | 79 | 10 | 9f78dbe522ea1916ac814d1a83124fbdfac2e7fb3f06293f62c64cc8439567b4 |
| 2026-08-30T08:23:36.219Z | REL-SNAP-026 | OK | - | 79 | 10 | 9f78dbe522ea1916ac814d1a83124fbdfac2e7fb3f06293f62c64cc8439567b4 |

## Identity

Record key: mcpcalc.com/api/v1/mcp (the normalised endpoint observed)
Registry names (not anchored — no inclusion proof reaches this field): com.mcpcalc/calculator (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: mcpcalc-mcp (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.