penny-rounding.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://penny-rounding.gumballtools.com/api/mcp | streamable-http | com.gumballtools/penny-rounding | ok | 200 | 2025-06-18 | 3 | 9/9 | 1027 | ok | 6 h ago |
MCP Check Receipts (Newest First, Up To 10 Per Server)
| Receipt | UTC Time | Path | State | HTTP | ms | Tools | Tools sha256 | Signed |
|---|---|---|---|---|---|---|---|---|
| 64990d206ae92cfcca6b | 2026-10-31T20:54:47Z | /api/mcp | ok | 200 | 1497 | 3 | b7772526de60 | per-receipt |
| 4ac8ab6ccdb7e054298a | 2026-10-30T20:54:44Z | /api/mcp | ok | 200 | 1035 | 3 | b7772526de60 | per-receipt |
| e2032426417ce53dea40 | 2026-10-29T20:54:42Z | /api/mcp | ok | 200 | 1234 | 3 | b7772526de60 | per-receipt |
| 7c26ec159da2b6c962b7 | 2026-10-28T20:54:40Z | /api/mcp | ok | 200 | 240 | 3 | b7772526de60 | per-receipt |
| 3fed72c619beb0c1f30b | 2026-10-27T20:54:42Z | /api/mcp | ok | 200 | 1270 | 3 | b7772526de60 | per-receipt |
| 7714c1d4cc68c0208514 | 2026-10-26T20:54:37Z | /api/mcp | ok | 200 | 861 | 3 | b7772526de60 | per-receipt |
| 081a5f959eb11c4925e9 | 2026-10-25T19:00:46Z | /api/mcp | ok | 200 | 833 | 3 | b7772526de60 | per-receipt |
Operator? Reply, dispute or opt out.