calaf.ai
Raw data · 2 server URLs 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://calaf.ai/api/mcp | streamable-http | ai.calaf/seeds | ok | 200 | 2025-06-18 | 2 | – | 285 | ok | 17 h ago |
https://calaf.ai/api/mcp-account | streamable-http | ai.calaf/calaf | auth_required | 401 | 5/5 | 225 | ok | 4 h ago |
MCP Check Receipts (Newest First, Up To 10 Per Server)
| Receipt | UTC Time | Path | State | HTTP | ms | Tools | Tools sha256 | Signed |
|---|---|---|---|---|---|---|---|---|
| 5917c1701f4d2ea8dea9 | 2026-10-27T22:15:43Z | /api/mcp-account | auth_required | 401 | 221 | per-receipt | ||
| 8ed5ddbf85dd1b2ef8cd | 2026-10-27T09:45:43Z | /api/mcp | ok | 200 | 285 | 2 | bb76566c79b5 | per-receipt |
| ec1e9a6f18d66b4ee378 | 2026-10-26T22:15:41Z | /api/mcp-account | auth_required | 401 | 374 | per-receipt | ||
| 077a3b6ee74976f88950 | 2026-10-26T09:45:40Z | /api/mcp | ok | 200 | 282 | 2 | bb76566c79b5 | per-receipt |
| 0f60a5c5d7481ea497dc | 2026-10-25T22:15:39Z | /api/mcp-account | auth_required | 401 | 295 | per-receipt | ||
| 7dde986d24d4a7f4a944 | 2026-10-25T09:45:40Z | /api/mcp | ok | 200 | 326 | 2 | bb76566c79b5 | per-receipt |
| 1d67995896dea7c5f52b | 2026-10-24T18:57:41Z | /api/mcp-account | auth_required | 401 | 131 | per-receipt | ||
| 3ea4024b92bdf96e4a93 | 2026-10-24T09:45:40Z | /api/mcp | ok | 200 | 147 | 2 | bb76566c79b5 | per-receipt |
| 8f9ebf24aa4f52d9b97c | 2026-10-23T22:15:39Z | /api/mcp-account | auth_required | 401 | 225 | per-receipt |
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