aicertificates.study
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://aicertificates.study/api/mcp | streamable-http | study.aicertificates/practice-exams | ok | 200 | 2025-06-18 | 5 | 10/10 | 356 | ok | 5 h ago |
MCP Check Receipts (Newest First, Up To 10 Per Server)
| Receipt | UTC Time | Path | State | HTTP | ms | Tools | Tools sha256 | Signed |
|---|---|---|---|---|---|---|---|---|
| 86e4a2af86a717bcb951 | 2026-11-01T21:27:41Z | /api/mcp | ok | 200 | 239 | 5 | 2bdccd13111d | per-receipt |
| 4770b3c8d8687f22a150 | 2026-10-31T21:27:42Z | /api/mcp | ok | 200 | 356 | 5 | 2bdccd13111d | per-receipt |
| a33ee651bfd0f6960165 | 2026-10-30T21:27:42Z | /api/mcp | ok | 200 | 498 | 5 | 2bdccd13111d | per-receipt |
| 7da51f97c47b7281bcbf | 2026-10-29T21:27:40Z | /api/mcp | ok | 200 | 196 | 5 | 2bdccd13111d | per-receipt |
| 5a0ea811b052625b9742 | 2026-10-28T21:27:42Z | /api/mcp | ok | 200 | 289 | 5 | 2bdccd13111d | per-receipt |
| c07a2492507394132986 | 2026-10-27T21:27:43Z | /api/mcp | ok | 200 | 884 | 5 | 2bdccd13111d | per-receipt |
| 0e46bcf15dd264ae7aa0 | 2026-10-26T21:27:39Z | /api/mcp | ok | 200 | 243 | 5 | 2bdccd13111d | per-receipt |
Operator? Reply, dispute or opt out.