nylas.usefulapi.io
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://nylas.usefulapi.io/mcp | streamable-http | io.usefulapi/nylas | handshake_failed | 405 | 2025-06-18 | 15 | 5/6 | 84 | ok | 18 h ago |
MCP Check Receipts (Newest First, Up To 10 Per Server)
| Receipt | UTC Time | Path | State | HTTP | ms | Tools | Tools sha256 | Signed |
|---|---|---|---|---|---|---|---|---|
| 9764720e8c26d9972e43 | 2026-10-28T04:30:45Z | /mcp | handshake_failed | 405 | 19 | per-receipt | ||
| 3303c83915d3c50c39b2 | 2026-10-27T04:30:43Z | /mcp | ok | 200 | 18 | 15 | be4ae07e62d9 | per-receipt |
| 4858393ce8fa6e111e46 | 2026-10-26T04:42:50Z | /mcp | ok | 200 | 15 | 15 | be4ae07e62d9 | per-receipt |
| 71ea99fda297ccda99a5 | 2026-10-26T04:30:43Z | /mcp | ok | 200 | 84 | 15 | be4ae07e62d9 | per-receipt |
| 5cb7fcaff6f3fa10c487 | 2026-10-25T03:42:43Z | /mcp | ok | 200 | 157 | 15 | be4ae07e62d9 | per-receipt |
| c05ec0c6f93d2a06d328 | 2026-10-24T04:30:43Z | /mcp | ok | 200 | 321 | 15 | be4ae07e62d9 | per-receipt |
Operator? Reply, dispute or opt out.