signalaf.com
Remote MCP server host. 2 server URLs from the Official MCP Registry. Each is checked with a login-free MCP handshake (initialize, then tools/list; unpaid tools/call only on tools that state a price, to read the payment request; nothing is paid, no credentials are sent): 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 unsafe address, or to another host, which our safety rules don't allow). Server names and descriptions are copied from the registry (untrusted text). Friendlier view: /s/signalaf.com.
| URL | Transport | Registry Name | Last State | HTTP | Protocol | Tools | Recent Checks OK | Median ms | TLS | Last Checked |
|---|---|---|---|---|---|---|---|---|---|---|
https://signalaf.com/api/exchange/mcp | streamable-http | com.signalaf/contribution-exchange | ok | 200 | 2025-06-18 | 6 | – | 1284 | ok | 15 h ago |
https://signalaf.com/api/mcp | streamable-http | com.signalaf/sigrank | ok | 200 | 2025-06-18 | 16 | – | 743 | 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 |
|---|---|---|---|---|---|---|---|---|
| 17870797236c6655bf2e | 2026-10-24T07:06:41Z | /api/mcp | ok | 200 | 743 | 16 | 6646fe05cc23 | per-receipt |
| 35b2d659a3aaabd1fa72 | 2026-10-23T21:18:41Z | /api/exchange/mcp | ok | 200 | 1284 | 6 | c6c404671307 | per-receipt |
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