> 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.

# addcal.co/mcp

Last observed: 2026-10-02T09:01:49.065Z
Recorded as: AUTH_REQUIRED (http_401)
Transport: streamable-http
Observations held: 50
Published: yes

## Observations

| Observed | Snapshot | Recorded as | Detail | Latency ms | Tools | Tool schema fingerprint |
|---|---|---|---|---|---|---|
| 2026-08-14T09:28:12.021Z | REL-SNAP-010 | AUTH_REQUIRED | http_401 | - | - | - |
| 2026-08-15T09:17:49.472Z | REL-SNAP-011 | AUTH_REQUIRED | http_401 | - | - | - |
| 2026-08-16T09:19:47.221Z | REL-SNAP-012 | AUTH_REQUIRED | http_401 | - | - | - |
| 2026-08-17T11:48:36.720Z | REL-SNAP-013 | AUTH_REQUIRED | http_401 | - | - | - |
| 2026-08-18T09:16:54.560Z | REL-SNAP-014 | AUTH_REQUIRED | http_401 | - | - | - |
| 2026-08-19T09:00:27.779Z | REL-SNAP-015 | AUTH_REQUIRED | http_401 | - | - | - |
| 2026-08-20T09:08:42.188Z | REL-SNAP-016 | AUTH_REQUIRED | http_401 | - | - | - |
| 2026-08-21T09:24:12.179Z | REL-SNAP-017 | AUTH_REQUIRED | http_401 | - | - | - |
| 2026-08-22T09:00:45.957Z | REL-SNAP-018 | AUTH_REQUIRED | http_401 | - | - | - |
| 2026-08-23T10:01:37.288Z | REL-SNAP-019 | AUTH_REQUIRED | http_401 | - | - | - |
| 2026-08-24T09:04:22.608Z | REL-SNAP-020 | AUTH_REQUIRED | http_401 | - | - | - |
| 2026-08-25T09:06:48.612Z | REL-SNAP-021 | AUTH_REQUIRED | http_401 | - | - | - |
| 2026-08-26T09:03:03.679Z | REL-SNAP-022 | AUTH_REQUIRED | http_401 | - | - | - |
| 2026-08-27T09:16:27.695Z | REL-SNAP-023 | AUTH_REQUIRED | http_401 | - | - | - |
| 2026-08-28T09:14:10.828Z | REL-SNAP-024 | AUTH_REQUIRED | http_401 | - | - | - |
| 2026-08-29T09:03:45.942Z | REL-SNAP-025 | AUTH_REQUIRED | http_401 | - | - | - |
| 2026-08-30T09:05:49.033Z | REL-SNAP-026 | AUTH_REQUIRED | http_401 | - | - | - |
| 2026-08-31T09:09:12.059Z | REL-SNAP-027 | AUTH_REQUIRED | http_401 | - | - | - |
| 2026-09-01T09:03:51.321Z | REL-SNAP-028 | AUTH_REQUIRED | http_401 | - | - | - |
| 2026-09-02T09:10:40.682Z | REL-SNAP-029 | AUTH_REQUIRED | http_401 | - | - | - |
| 2026-09-03T09:32:11.997Z | REL-SNAP-030 | AUTH_REQUIRED | http_401 | - | - | - |
| 2026-09-04T09:23:20.401Z | REL-SNAP-031 | AUTH_REQUIRED | http_401 | - | - | - |
| 2026-09-05T09:08:38.489Z | REL-SNAP-032 | AUTH_REQUIRED | http_401 | - | - | - |
| 2026-09-06T09:16:55.853Z | REL-SNAP-033 | AUTH_REQUIRED | http_401 | - | - | - |
| 2026-09-07T09:35:30.884Z | REL-SNAP-034 | AUTH_REQUIRED | http_401 | - | - | - |
| 2026-09-08T09:27:42.233Z | REL-SNAP-035 | AUTH_REQUIRED | http_401 | - | - | - |
| 2026-09-09T09:16:52.151Z | REL-SNAP-036 | AUTH_REQUIRED | http_401 | - | - | - |
| 2026-09-10T09:10:37.425Z | REL-SNAP-037 | AUTH_REQUIRED | http_401 | - | - | - |
| 2026-09-11T09:10:06.548Z | REL-SNAP-038 | AUTH_REQUIRED | http_401 | - | - | - |
| 2026-09-12T09:02:06.481Z | REL-SNAP-039 | AUTH_REQUIRED | http_401 | - | - | - |
| 2026-09-13T09:29:28.099Z | REL-SNAP-040 | AUTH_REQUIRED | http_401 | - | - | - |
| 2026-09-14T09:29:22.244Z | REL-SNAP-041 | AUTH_REQUIRED | http_401 | - | - | - |
| 2026-09-15T09:22:59.608Z | REL-SNAP-042 | AUTH_REQUIRED | http_401 | - | - | - |
| 2026-09-16T09:44:45.108Z | REL-SNAP-043 | AUTH_REQUIRED | http_401 | - | - | - |
| 2026-09-17T09:27:46.355Z | REL-SNAP-044 | AUTH_REQUIRED | http_401 | - | - | - |
| 2026-09-18T09:21:03.756Z | REL-SNAP-045 | AUTH_REQUIRED | http_401 | - | - | - |
| 2026-09-19T09:07:15.429Z | REL-SNAP-046 | AUTH_REQUIRED | http_401 | - | - | - |
| 2026-09-20T09:22:36.163Z | REL-SNAP-047 | AUTH_REQUIRED | http_401 | - | - | - |
| 2026-09-21T09:03:47.610Z | REL-SNAP-048 | AUTH_REQUIRED | http_401 | - | - | - |
| 2026-09-22T09:18:57.598Z | REL-SNAP-049 | AUTH_REQUIRED | http_401 | - | - | - |
| 2026-09-23T09:41:10.343Z | REL-SNAP-050 | AUTH_REQUIRED | http_401 | - | - | - |
| 2026-09-24T09:36:15.804Z | REL-SNAP-051 | AUTH_REQUIRED | http_401 | - | - | - |
| 2026-09-25T09:34:02.083Z | REL-SNAP-052 | AUTH_REQUIRED | http_401 | - | - | - |
| 2026-09-26T09:10:38.844Z | REL-SNAP-053 | AUTH_REQUIRED | http_401 | - | - | - |
| 2026-09-27T09:23:23.332Z | REL-SNAP-054 | AUTH_REQUIRED | http_401 | - | - | - |
| 2026-09-28T09:37:34.462Z | REL-SNAP-055 | AUTH_REQUIRED | http_401 | - | - | - |
| 2026-09-29T09:24:58.609Z | REL-SNAP-056 | AUTH_REQUIRED | http_401 | - | - | - |
| 2026-09-30T09:29:39.411Z | REL-SNAP-057 | AUTH_REQUIRED | http_401 | - | - | - |
| 2026-10-01T09:05:52.723Z | REL-SNAP-058 | AUTH_REQUIRED | http_401 | - | - | - |
| 2026-10-02T09:01:49.065Z | REL-SNAP-059 | AUTH_REQUIRED | http_401 | - | - | - |

## Identity

Record key: addcal.co/mcp (the normalised endpoint observed)
Registry names (not anchored — no inclusion proof reaches this field): co.addcal/addcal (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: not reported (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.