> 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.

# tango.dev/mcp

Last observed: 2026-08-30T09:03:40.147Z
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 |
|---|---|---|---|---|---|---|
| 2026-08-06T17:45:57.420Z | REL-SNAP-002 | AUTH_REQUIRED | http_401 | - | - | - |
| 2026-08-07T08:32:02.249Z | REL-SNAP-003 | AUTH_REQUIRED | http_401 | - | - | - |
| 2026-08-08T10:13:20.230Z | REL-SNAP-004 | AUTH_REQUIRED | http_401 | - | - | - |
| 2026-08-09T08:54:57.770Z | REL-SNAP-005 | AUTH_REQUIRED | http_401 | - | - | - |
| 2026-08-10T08:50:59.883Z | REL-SNAP-006 | AUTH_REQUIRED | http_401 | - | - | - |
| 2026-08-11T09:20:20.590Z | REL-SNAP-007 | AUTH_REQUIRED | http_401 | - | - | - |
| 2026-08-12T09:18:34.185Z | REL-SNAP-008 | AUTH_REQUIRED | http_401 | - | - | - |
| 2026-08-13T09:11:30.864Z | REL-SNAP-009 | AUTH_REQUIRED | http_401 | - | - | - |
| 2026-08-14T09:24:55.652Z | REL-SNAP-010 | AUTH_REQUIRED | http_401 | - | - | - |
| 2026-08-15T09:14:52.039Z | REL-SNAP-011 | AUTH_REQUIRED | http_401 | - | - | - |
| 2026-08-16T09:16:18.863Z | REL-SNAP-012 | AUTH_REQUIRED | http_401 | - | - | - |
| 2026-08-17T11:45:40.291Z | REL-SNAP-013 | AUTH_REQUIRED | http_401 | - | - | - |
| 2026-08-18T09:13:56.858Z | REL-SNAP-014 | AUTH_REQUIRED | http_401 | - | - | - |
| 2026-08-19T08:58:17.664Z | REL-SNAP-015 | AUTH_REQUIRED | http_401 | - | - | - |
| 2026-08-20T09:06:37.808Z | REL-SNAP-016 | AUTH_REQUIRED | http_401 | - | - | - |
| 2026-08-21T09:22:13.479Z | REL-SNAP-017 | AUTH_REQUIRED | http_401 | - | - | - |
| 2026-08-22T08:58:46.048Z | REL-SNAP-018 | AUTH_REQUIRED | http_401 | - | - | - |
| 2026-08-23T09:59:33.229Z | REL-SNAP-019 | AUTH_REQUIRED | http_401 | - | - | - |
| 2026-08-24T09:02:15.048Z | REL-SNAP-020 | AUTH_REQUIRED | http_401 | - | - | - |
| 2026-08-25T09:04:35.571Z | REL-SNAP-021 | AUTH_REQUIRED | http_401 | - | - | - |
| 2026-08-26T09:00:49.259Z | REL-SNAP-022 | AUTH_REQUIRED | http_401 | - | - | - |
| 2026-08-27T09:14:13.967Z | REL-SNAP-023 | AUTH_REQUIRED | http_401 | - | - | - |
| 2026-08-28T09:12:07.274Z | REL-SNAP-024 | AUTH_REQUIRED | http_401 | - | - | - |
| 2026-08-29T09:01:45.334Z | REL-SNAP-025 | AUTH_REQUIRED | http_401 | - | - | - |
| 2026-08-30T09:03:40.147Z | REL-SNAP-026 | AUTH_REQUIRED | http_401 | - | - | - |

## Identity

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