check-digit.gumballtools.com
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://check-digit.gumballtools.com/api/mcp | streamable-http | com.gumballtools/check-digit | ok | 200 | 2025-06-18 | 1 | 11/11 | 904 | 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 |
|---|---|---|---|---|---|---|---|---|
| 285bc0c240ed9178724d | 2026-11-03T13:24:39Z | /api/mcp | ok | 200 | 1261 | 1 | 40791e79a763 | per-receipt |
| ad397a4d9b5b92840b78 | 2026-11-02T13:24:43Z | /api/mcp | ok | 200 | 904 | 1 | 40791e79a763 | per-receipt |
| 29bcd7179ecb19c6277c | 2026-11-01T13:24:38Z | /api/mcp | ok | 200 | 187 | 1 | 40791e79a763 | per-receipt |
| 3ea4b3ace2c41ba5cd51 | 2026-10-31T13:24:39Z | /api/mcp | ok | 200 | 829 | 1 | 40791e79a763 | per-receipt |
| 78ff10171f81b89f29fe | 2026-10-30T13:24:40Z | /api/mcp | ok | 200 | 1435 | 1 | 40791e79a763 | per-receipt |
| b3788d2b2f2b87761019 | 2026-10-29T13:24:41Z | /api/mcp | ok | 200 | 1163 | 1 | 40791e79a763 | per-receipt |
| a56821b8ebb806daee82 | 2026-10-28T13:24:41Z | /api/mcp | ok | 200 | 900 | 1 | 40791e79a763 | per-receipt |
| 40bb69d64382a718b050 | 2026-10-27T13:24:40Z | /api/mcp | ok | 200 | 1108 | 1 | 40791e79a763 | per-receipt |
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