mcp.lettras.org
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://mcp.lettras.org/mcp | streamable-http | org.lettras/word-search | ok | 200 | 2025-06-18 | 8 | 10/10 | 623 | ok | 23 h ago |
MCP Check Receipts (Newest First, Up To 10 Per Server)
| Receipt | UTC Time | Path | State | HTTP | ms | Tools | Tools sha256 | Signed |
|---|---|---|---|---|---|---|---|---|
| 6dfa84d67a885c3f190b | 2026-11-01T21:33:44Z | /mcp | ok | 200 | 623 | 8 | c02ed311e140 | per-receipt |
| e9d7409a83c8a31f34b2 | 2026-10-31T21:33:41Z | /mcp | ok | 200 | 620 | 8 | c02ed311e140 | per-receipt |
| a90984b8c9a3d617429e | 2026-10-30T21:33:42Z | /mcp | ok | 200 | 986 | 8 | c02ed311e140 | per-receipt |
| cad1310e998e7ff6d6a1 | 2026-10-29T21:33:40Z | /mcp | ok | 200 | 449 | 8 | c02ed311e140 | per-receipt |
| d968e1e5cbfb9ed5e0af | 2026-10-28T21:33:45Z | /mcp | ok | 200 | 930 | 8 | c02ed311e140 | per-receipt |
| 7cec1ca4fae3bbf604e0 | 2026-10-27T21:33:40Z | /mcp | ok | 200 | 209 | 8 | c02ed311e140 | per-receipt |
| 92842106fa5966b64d01 | 2026-10-26T21:33:38Z | /mcp | ok | 200 | 720 | 8 | c02ed311e140 | per-receipt |
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