> 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.

# ably.usefulapi.io/mcp

Last observed: 2026-10-02T08:51:44.278Z
Recorded as: RATE_LIMITED (http_429)
Transport: streamable-http
Observations held: 58
Published: yes

## Observations

| Observed | Snapshot | Recorded as | Detail | Latency ms | Tools | Tool schema fingerprint |
|---|---|---|---|---|---|---|
| 2026-08-06T17:53:09.146Z | REL-SNAP-002 | RATE_LIMITED | http_429 | - | - | - |
| 2026-08-07T08:39:21.584Z | REL-SNAP-003 | RATE_LIMITED | http_429 | - | - | - |
| 2026-08-08T10:20:42.631Z | REL-SNAP-004 | RATE_LIMITED | http_429 | - | - | - |
| 2026-08-09T09:02:02.050Z | REL-SNAP-005 | RATE_LIMITED | http_429 | - | - | - |
| 2026-08-10T09:00:01.378Z | REL-SNAP-006 | RATE_LIMITED | http_429 | - | - | - |
| 2026-08-11T09:03:34.336Z | REL-SNAP-007 | RATE_LIMITED | http_429 | - | - | - |
| 2026-08-12T09:02:14.207Z | REL-SNAP-008 | RATE_LIMITED | http_429 | - | - | - |
| 2026-08-13T08:56:03.241Z | REL-SNAP-009 | RATE_LIMITED | http_429 | - | - | - |
| 2026-08-14T09:08:23.168Z | REL-SNAP-010 | RATE_LIMITED | http_429 | - | - | - |
| 2026-08-15T08:58:55.580Z | REL-SNAP-011 | RATE_LIMITED | http_429 | - | - | - |
| 2026-08-16T08:59:36.962Z | REL-SNAP-012 | RATE_LIMITED | http_429 | - | - | - |
| 2026-08-17T11:30:31.215Z | REL-SNAP-013 | RATE_LIMITED | http_429 | - | - | - |
| 2026-08-18T08:58:09.341Z | REL-SNAP-014 | RATE_LIMITED | http_429 | - | - | - |
| 2026-08-19T08:47:30.421Z | REL-SNAP-015 | RATE_LIMITED | http_429 | - | - | - |
| 2026-08-20T08:55:59.556Z | REL-SNAP-016 | RATE_LIMITED | http_429 | - | - | - |
| 2026-08-21T09:11:42.853Z | REL-SNAP-017 | RATE_LIMITED | http_429 | - | - | - |
| 2026-08-22T08:48:42.633Z | REL-SNAP-018 | RATE_LIMITED | http_429 | - | - | - |
| 2026-08-23T09:49:46.421Z | REL-SNAP-019 | RATE_LIMITED | http_429 | - | - | - |
| 2026-08-24T08:52:02.103Z | REL-SNAP-020 | RATE_LIMITED | http_429 | - | - | - |
| 2026-08-25T08:53:59.884Z | REL-SNAP-021 | RATE_LIMITED | http_429 | - | - | - |
| 2026-08-26T08:50:19.051Z | REL-SNAP-022 | RATE_LIMITED | http_429 | - | - | - |
| 2026-08-27T09:03:03.346Z | REL-SNAP-023 | RATE_LIMITED | http_429 | - | - | - |
| 2026-08-28T09:01:02.464Z | REL-SNAP-024 | RATE_LIMITED | http_429 | - | - | - |
| 2026-08-29T08:51:10.368Z | REL-SNAP-025 | RATE_LIMITED | http_429 | - | - | - |
| 2026-08-30T08:53:04.591Z | REL-SNAP-026 | RATE_LIMITED | http_429 | - | - | - |
| 2026-08-31T08:56:23.299Z | REL-SNAP-027 | RATE_LIMITED | http_429 | - | - | - |
| 2026-09-01T08:51:36.197Z | REL-SNAP-028 | RATE_LIMITED | http_429 | - | - | - |
| 2026-09-02T08:58:43.835Z | REL-SNAP-029 | RATE_LIMITED | http_429 | - | - | - |
| 2026-09-03T09:20:34.827Z | REL-SNAP-030 | RATE_LIMITED | http_429 | - | - | - |
| 2026-09-04T09:08:55.920Z | REL-SNAP-031 | RATE_LIMITED | http_429 | - | - | - |
| 2026-09-05T08:55:56.734Z | REL-SNAP-032 | RATE_LIMITED | http_429 | - | - | - |
| 2026-09-06T09:05:24.515Z | REL-SNAP-033 | RATE_LIMITED | http_429 | - | - | - |
| 2026-09-07T09:19:55.785Z | REL-SNAP-034 | RATE_LIMITED | http_429 | - | - | - |
| 2026-09-08T09:12:24.170Z | REL-SNAP-035 | RATE_LIMITED | http_429 | - | - | - |
| 2026-09-09T09:05:40.857Z | REL-SNAP-036 | RATE_LIMITED | http_429 | - | - | - |
| 2026-09-10T08:59:32.297Z | REL-SNAP-037 | RATE_LIMITED | http_429 | - | - | - |
| 2026-09-11T08:58:41.308Z | REL-SNAP-038 | RATE_LIMITED | http_429 | - | - | - |
| 2026-09-12T08:50:58.668Z | REL-SNAP-039 | RATE_LIMITED | http_429 | - | - | - |
| 2026-09-13T09:18:09.157Z | REL-SNAP-040 | RATE_LIMITED | http_429 | - | - | - |
| 2026-09-14T09:17:40.671Z | REL-SNAP-041 | RATE_LIMITED | http_429 | - | - | - |
| 2026-09-15T09:10:05.857Z | REL-SNAP-042 | RATE_LIMITED | http_429 | - | - | - |
| 2026-09-16T09:29:56.806Z | REL-SNAP-043 | RATE_LIMITED | http_429 | - | - | - |
| 2026-09-17T09:12:45.862Z | REL-SNAP-044 | RATE_LIMITED | http_429 | - | - | - |
| 2026-09-18T09:08:35.246Z | REL-SNAP-045 | RATE_LIMITED | http_429 | - | - | - |
| 2026-09-19T08:55:36.673Z | REL-SNAP-046 | RATE_LIMITED | http_429 | - | - | - |
| 2026-09-20T09:09:57.609Z | REL-SNAP-047 | RATE_LIMITED | http_429 | - | - | - |
| 2026-09-21T08:50:01.727Z | REL-SNAP-048 | RATE_LIMITED | http_429 | - | - | - |
| 2026-09-22T09:07:10.768Z | REL-SNAP-049 | RATE_LIMITED | http_429 | - | - | - |
| 2026-09-23T09:29:31.150Z | REL-SNAP-050 | RATE_LIMITED | http_429 | - | - | - |
| 2026-09-24T09:23:17.670Z | REL-SNAP-051 | RATE_LIMITED | http_429 | - | - | - |
| 2026-09-25T09:22:37.787Z | REL-SNAP-052 | RATE_LIMITED | http_429 | - | - | - |
| 2026-09-26T08:59:36.774Z | REL-SNAP-053 | RATE_LIMITED | http_429 | - | - | - |
| 2026-09-27T09:12:11.346Z | REL-SNAP-054 | RATE_LIMITED | http_429 | - | - | - |
| 2026-09-28T09:26:21.031Z | REL-SNAP-055 | RATE_LIMITED | http_429 | - | - | - |
| 2026-09-29T09:14:02.964Z | REL-SNAP-056 | RATE_LIMITED | http_429 | - | - | - |
| 2026-09-30T09:18:09.633Z | REL-SNAP-057 | RATE_LIMITED | http_429 | - | - | - |
| 2026-10-01T08:55:22.079Z | REL-SNAP-058 | RATE_LIMITED | http_429 | - | - | - |
| 2026-10-02T08:51:44.278Z | REL-SNAP-059 | RATE_LIMITED | http_429 | - | - | - |

## Identity

Record key: ably.usefulapi.io/mcp (the normalised endpoint observed)
Registry names (not anchored — no inclusion proof reaches this field): io.usefulapi/ably (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.