cairn.notdown-app.workers.dev
Raw data · 1 server URL from the Official MCP Registry · simple view
Login-free handshake (initialize → tools/list; unpaid tools/call only on priced tools, to read the payment request; never paid, no credentials): automatic unauthenticated MCP handshake (initialize + tools/list), aiming for about once a day per listed server while we are still working through the registry; priority tier (host looked up via BotsRated preflight/check/report, or also a covered x402 seller, in the last 7 days) about every 6 hours; servers with no MCP answer for 7 days about every 4 days. States are factual: ok (initialize and tools/list answered), auth_required (HTTP 401/403: the server wants a login), handshake_failed (HTTP answer without a valid MCP result), unreachable (no HTTP answer), blocked (not contacted: the URL, a redirect or its DNS points to a private, local or otherwise non-public address, or to another host, which our rules don't allow). Names and descriptions are the registry's text; we don't check it.
| URL | Transport | Registry Name | Last State | HTTP | Protocol | Tools | Recent Checks OK | Median ms | TLS | Last Checked |
|---|---|---|---|---|---|---|---|---|---|---|
https://cairn.notdown-app.workers.dev/mcp | streamable-http | dev.workers.notdown-app.cairn/daily-build-streak-accountability-tracker | ok | 200 | 2025-06-18 | 3 | 5/5 | 72 | ok | 17 h ago |
MCP Check Receipts (Newest First, Up To 10 Per Server)
| Receipt | UTC Time | Path | State | HTTP | ms | Tools | Tools sha256 | Signed |
|---|---|---|---|---|---|---|---|---|
| 01dd69cf7a59521eb68a | 2026-10-28T10:36:43Z | /mcp | ok | 200 | 113 | 3 | 831c1de7e7e9 | per-receipt |
| fc60acd65b5697f91d03 | 2026-10-27T10:36:44Z | /mcp | ok | 200 | 72 | 3 | 831c1de7e7e9 | per-receipt |
| 012ed58f60c72df893c3 | 2026-10-26T10:36:47Z | /mcp | ok | 200 | 238 | 3 | 831c1de7e7e9 | per-receipt |
| d501f0b1ec2c066ec5db | 2026-10-25T10:36:41Z | /mcp | ok | 200 | 57 | 3 | 831c1de7e7e9 | per-receipt |
| 87a5c9e0c4a86bdfd234 | 2026-10-24T10:36:38Z | /mcp | ok | 200 | 36 | 3 | 831c1de7e7e9 | per-receipt |
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