> 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.carbonarc.ai

Last observed: 2026-08-30T08:38:54.414Z
Recorded as: AUTH_REQUIRED (http_401)
Transport: streamable-http
Observations held: 25
Published: yes

## Observations

| Observed | Snapshot | Recorded as | Detail | Latency ms | Tools | Tool schema fingerprint |
|---|---|---|---|---|---|---|
| 2026-08-06T17:35:54.305Z | REL-SNAP-002 | AUTH_REQUIRED | http_401 | - | - | - |
| 2026-08-07T08:21:42.770Z | REL-SNAP-003 | AUTH_REQUIRED | http_401 | - | - | - |
| 2026-08-08T10:02:42.328Z | REL-SNAP-004 | AUTH_REQUIRED | http_401 | - | - | - |
| 2026-08-09T08:44:50.522Z | REL-SNAP-005 | AUTH_REQUIRED | http_401 | - | - | - |
| 2026-08-10T08:40:01.991Z | REL-SNAP-006 | AUTH_REQUIRED | http_401 | - | - | - |
| 2026-08-11T08:44:41.839Z | REL-SNAP-007 | AUTH_REQUIRED | http_401 | - | - | - |
| 2026-08-12T08:43:45.515Z | REL-SNAP-008 | AUTH_REQUIRED | http_401 | - | - | - |
| 2026-08-13T08:38:31.856Z | REL-SNAP-009 | AUTH_REQUIRED | http_401 | - | - | - |
| 2026-08-14T08:48:38.414Z | REL-SNAP-010 | AUTH_REQUIRED | http_401 | - | - | - |
| 2026-08-15T08:39:25.274Z | REL-SNAP-011 | AUTH_REQUIRED | http_401 | - | - | - |
| 2026-08-16T08:40:27.927Z | REL-SNAP-012 | AUTH_REQUIRED | http_401 | - | - | - |
| 2026-08-17T11:12:34.416Z | REL-SNAP-013 | AUTH_REQUIRED | http_401 | - | - | - |
| 2026-08-18T08:39:27.209Z | REL-SNAP-014 | AUTH_REQUIRED | http_401 | - | - | - |
| 2026-08-19T08:34:00.066Z | REL-SNAP-015 | AUTH_REQUIRED | http_401 | - | - | - |
| 2026-08-20T08:42:30.369Z | REL-SNAP-016 | AUTH_REQUIRED | http_401 | - | - | - |
| 2026-08-21T08:58:18.444Z | REL-SNAP-017 | AUTH_REQUIRED | http_401 | - | - | - |
| 2026-08-22T08:35:33.706Z | REL-SNAP-018 | AUTH_REQUIRED | http_401 | - | - | - |
| 2026-08-23T09:36:38.701Z | REL-SNAP-019 | AUTH_REQUIRED | http_401 | - | - | - |
| 2026-08-24T08:38:48.053Z | REL-SNAP-020 | AUTH_REQUIRED | http_401 | - | - | - |
| 2026-08-25T08:39:38.572Z | REL-SNAP-021 | AUTH_REQUIRED | http_401 | - | - | - |
| 2026-08-26T08:35:40.587Z | REL-SNAP-022 | AUTH_REQUIRED | http_401 | - | - | - |
| 2026-08-27T08:47:42.386Z | REL-SNAP-023 | AUTH_REQUIRED | http_401 | - | - | - |
| 2026-08-28T08:47:00.785Z | REL-SNAP-024 | AUTH_REQUIRED | http_401 | - | - | - |
| 2026-08-29T08:36:52.196Z | REL-SNAP-025 | AUTH_REQUIRED | http_401 | - | - | - |
| 2026-08-30T08:38:54.414Z | REL-SNAP-026 | AUTH_REQUIRED | http_401 | - | - | - |

## Identity

Record key: mcp.carbonarc.ai (the normalised endpoint observed)
Registry names (not anchored — no inclusion proof reaches this field): io.github.Carbon-Arc/mcp (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.