www.premierletters.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://www.premierletters.com/api/mcp | streamable-http | com.premierletters/mcp | ok | 200 | 2025-06-18 | 12 | 6/6 | 225 | ok | 14 h ago |
MCP Check Receipts (Newest First, Up To 10 Per Server)
| Receipt | UTC Time | Path | State | HTTP | ms | Tools | Tools sha256 | Signed |
|---|---|---|---|---|---|---|---|---|
| ca47873d7b96df051636 | 2026-10-28T00:36:48Z | /api/mcp | ok | 200 | 415 | 12 | 8ef15040144a | per-receipt |
| 81fa49ea8796353b2e40 | 2026-10-27T00:36:43Z | /api/mcp | ok | 200 | 225 | 12 | 8ef15040144a | per-receipt |
| 4cc9dcfd2b759cc517fa | 2026-10-26T03:06:45Z | /api/mcp | ok | 200 | 221 | 12 | 8ef15040144a | per-receipt |
| d11ebaea301088283989 | 2026-10-26T00:36:40Z | /api/mcp | ok | 200 | 275 | 12 | 8ef15040144a | per-receipt |
| 876b1ed523d9238ac71b | 2026-10-24T22:03:40Z | /api/mcp | ok | 200 | 103 | 12 | 8ef15040144a | per-receipt |
| 4499a292e2b94e300bd4 | 2026-10-24T00:36:48Z | /api/mcp | ok | 200 | 196 | 12 | 8ef15040144a | per-receipt |
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