> 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.

# horizon.alchemylab.sh/api/mcp

Last observed: 2026-08-30T08:51:15.285Z
Recorded as: OK
Transport: streamable-http
Observations held: 25
Published: yes

## Observations

| Observed | Snapshot | Recorded as | Detail | Latency ms | Tools | Tool schema fingerprint |
|---|---|---|---|---|---|---|
| 2026-08-06T17:50:33.698Z | REL-SNAP-002 | OK | - | 541 | 10 | 3697f0c696f6a73e54de31e35e2f9c841b51e2bd0d449a88759f0f1da4a41a6c |
| 2026-08-07T08:36:43.878Z | REL-SNAP-003 | OK | - | 528 | 10 | 3697f0c696f6a73e54de31e35e2f9c841b51e2bd0d449a88759f0f1da4a41a6c |
| 2026-08-08T10:18:08.519Z | REL-SNAP-004 | OK | - | 548 | 10 | 3697f0c696f6a73e54de31e35e2f9c841b51e2bd0d449a88759f0f1da4a41a6c |
| 2026-08-09T08:59:31.854Z | REL-SNAP-005 | OK | - | 571 | 10 | 3697f0c696f6a73e54de31e35e2f9c841b51e2bd0d449a88759f0f1da4a41a6c |
| 2026-08-10T08:57:09.594Z | REL-SNAP-006 | OK | - | 558 | 10 | 3697f0c696f6a73e54de31e35e2f9c841b51e2bd0d449a88759f0f1da4a41a6c |
| 2026-08-11T09:00:41.771Z | REL-SNAP-007 | OK | - | 553 | 10 | 3697f0c696f6a73e54de31e35e2f9c841b51e2bd0d449a88759f0f1da4a41a6c |
| 2026-08-12T08:59:27.313Z | REL-SNAP-008 | OK | - | 553 | 10 | 3697f0c696f6a73e54de31e35e2f9c841b51e2bd0d449a88759f0f1da4a41a6c |
| 2026-08-13T08:53:29.991Z | REL-SNAP-009 | OK | - | 705 | 10 | 3697f0c696f6a73e54de31e35e2f9c841b51e2bd0d449a88759f0f1da4a41a6c |
| 2026-08-14T09:05:37.170Z | REL-SNAP-010 | OK | - | 544 | 10 | 3697f0c696f6a73e54de31e35e2f9c841b51e2bd0d449a88759f0f1da4a41a6c |
| 2026-08-15T08:56:06.019Z | REL-SNAP-011 | OK | - | 548 | 10 | 3697f0c696f6a73e54de31e35e2f9c841b51e2bd0d449a88759f0f1da4a41a6c |
| 2026-08-16T08:56:48.040Z | REL-SNAP-012 | OK | - | 550 | 10 | 3697f0c696f6a73e54de31e35e2f9c841b51e2bd0d449a88759f0f1da4a41a6c |
| 2026-08-17T11:27:55.292Z | REL-SNAP-013 | OK | - | 596 | 10 | 3697f0c696f6a73e54de31e35e2f9c841b51e2bd0d449a88759f0f1da4a41a6c |
| 2026-08-18T08:55:14.182Z | REL-SNAP-014 | OK | - | 676 | 10 | 3697f0c696f6a73e54de31e35e2f9c841b51e2bd0d449a88759f0f1da4a41a6c |
| 2026-08-19T08:45:38.076Z | REL-SNAP-015 | OK | - | 232 | 11 | 7aada60b46b3b45e15a3727bf46ec2855b3ed6e38f43eef4c75eb287c214f53f |
| 2026-08-20T08:54:07.632Z | REL-SNAP-016 | OK | - | 218 | 11 | 7aada60b46b3b45e15a3727bf46ec2855b3ed6e38f43eef4c75eb287c214f53f |
| 2026-08-21T09:09:49.164Z | REL-SNAP-017 | OK | - | 221 | 11 | 7aada60b46b3b45e15a3727bf46ec2855b3ed6e38f43eef4c75eb287c214f53f |
| 2026-08-22T08:46:51.995Z | REL-SNAP-018 | OK | - | 270 | 11 | 7aada60b46b3b45e15a3727bf46ec2855b3ed6e38f43eef4c75eb287c214f53f |
| 2026-08-23T09:48:00.454Z | REL-SNAP-019 | OK | - | 235 | 11 | 7aada60b46b3b45e15a3727bf46ec2855b3ed6e38f43eef4c75eb287c214f53f |
| 2026-08-24T08:50:07.953Z | REL-SNAP-020 | OK | - | 218 | 11 | 7aada60b46b3b45e15a3727bf46ec2855b3ed6e38f43eef4c75eb287c214f53f |
| 2026-08-25T08:52:04.314Z | REL-SNAP-021 | OK | - | 229 | 11 | 7aada60b46b3b45e15a3727bf46ec2855b3ed6e38f43eef4c75eb287c214f53f |
| 2026-08-26T08:48:22.785Z | REL-SNAP-022 | OK | - | 224 | 11 | 7aada60b46b3b45e15a3727bf46ec2855b3ed6e38f43eef4c75eb287c214f53f |
| 2026-08-27T09:01:04.509Z | REL-SNAP-023 | OK | - | 266 | 11 | 7aada60b46b3b45e15a3727bf46ec2855b3ed6e38f43eef4c75eb287c214f53f |
| 2026-08-28T08:59:15.286Z | REL-SNAP-024 | OK | - | 236 | 11 | 7aada60b46b3b45e15a3727bf46ec2855b3ed6e38f43eef4c75eb287c214f53f |
| 2026-08-29T08:49:15.743Z | REL-SNAP-025 | OK | - | 230 | 11 | 7aada60b46b3b45e15a3727bf46ec2855b3ed6e38f43eef4c75eb287c214f53f |
| 2026-08-30T08:51:15.285Z | REL-SNAP-026 | OK | - | 233 | 11 | 7aada60b46b3b45e15a3727bf46ec2855b3ed6e38f43eef4c75eb287c214f53f |

## Identity

Record key: horizon.alchemylab.sh/api/mcp (the normalised endpoint observed)
Registry names (not anchored — no inclusion proof reaches this field): sh.alchemylab.horizon/briefing (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: horizon (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.