> 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.

# mcp.metricduck.com/mcp

Last observed: 2026-08-30T08:25:38.741Z
Recorded as: PROTOCOL_ERROR (post_rejected)
Transport: streamable-http
Observations held: 25
Published: yes

## Observations

| Observed | Snapshot | Recorded as | Detail | Latency ms | Tools | Tool schema fingerprint |
|---|---|---|---|---|---|---|
| 2026-08-06T17:23:12.762Z | REL-SNAP-002 | PROTOCOL_ERROR | post_rejected | - | - | - |
| 2026-08-07T08:08:42.373Z | REL-SNAP-003 | PROTOCOL_ERROR | post_rejected | - | - | - |
| 2026-08-08T09:48:42.779Z | REL-SNAP-004 | PROTOCOL_ERROR | post_rejected | - | - | - |
| 2026-08-09T08:32:01.143Z | REL-SNAP-005 | PROTOCOL_ERROR | post_rejected | - | - | - |
| 2026-08-10T08:26:26.409Z | REL-SNAP-006 | PROTOCOL_ERROR | post_rejected | - | - | - |
| 2026-08-11T08:30:42.868Z | REL-SNAP-007 | PROTOCOL_ERROR | post_rejected | - | - | - |
| 2026-08-12T08:30:22.285Z | REL-SNAP-008 | PROTOCOL_ERROR | post_rejected | - | - | - |
| 2026-08-13T08:25:18.590Z | REL-SNAP-009 | PROTOCOL_ERROR | post_rejected | - | - | - |
| 2026-08-14T08:34:01.982Z | REL-SNAP-010 | PROTOCOL_ERROR | post_rejected | - | - | - |
| 2026-08-15T08:24:51.924Z | REL-SNAP-011 | PROTOCOL_ERROR | post_rejected | - | - | - |
| 2026-08-16T08:25:47.210Z | REL-SNAP-012 | PROTOCOL_ERROR | post_rejected | - | - | - |
| 2026-08-17T09:02:38.101Z | REL-SNAP-013 | PROTOCOL_ERROR | post_rejected | - | - | - |
| 2026-08-18T08:25:21.698Z | REL-SNAP-014 | PROTOCOL_ERROR | post_rejected | - | - | - |
| 2026-08-19T08:23:04.329Z | REL-SNAP-015 | PROTOCOL_ERROR | post_rejected | - | - | - |
| 2026-08-20T08:31:25.004Z | REL-SNAP-016 | PROTOCOL_ERROR | post_rejected | - | - | - |
| 2026-08-21T08:47:28.479Z | REL-SNAP-017 | PROTOCOL_ERROR | post_rejected | - | - | - |
| 2026-08-22T08:24:21.970Z | REL-SNAP-018 | PROTOCOL_ERROR | post_rejected | - | - | - |
| 2026-08-23T09:25:32.886Z | REL-SNAP-019 | PROTOCOL_ERROR | post_rejected | - | - | - |
| 2026-08-24T08:27:41.467Z | REL-SNAP-020 | PROTOCOL_ERROR | post_rejected | - | - | - |
| 2026-08-25T08:27:34.193Z | REL-SNAP-021 | PROTOCOL_ERROR | post_rejected | - | - | - |
| 2026-08-26T08:23:12.283Z | REL-SNAP-022 | PROTOCOL_ERROR | post_rejected | - | - | - |
| 2026-08-27T08:34:23.708Z | REL-SNAP-023 | PROTOCOL_ERROR | post_rejected | - | - | - |
| 2026-08-28T08:33:55.438Z | REL-SNAP-024 | PROTOCOL_ERROR | post_rejected | - | - | - |
| 2026-08-29T08:23:21.215Z | REL-SNAP-025 | PROTOCOL_ERROR | post_rejected | - | - | - |
| 2026-08-30T08:25:38.741Z | REL-SNAP-026 | PROTOCOL_ERROR | post_rejected | - | - | - |

## Identity

Record key: mcp.metricduck.com/mcp (the normalised endpoint observed)
Registry names (not anchored — no inclusion proof reaches this field): com.metricduck/financial-analysis (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.