1f4bc.ai
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://1f4bc.ai/mcp | streamable-http | io.github.1f4bcai/1f4bc | ok | 200 | 2025-06-18 | 5 | 10/10 | 1462 | ok | 10 h ago |
MCP Check Receipts (Newest First, Up To 10 Per Server)
| Receipt | UTC Time | Path | State | HTTP | ms | Tools | Tools sha256 | Signed |
|---|---|---|---|---|---|---|---|---|
| 0bbaaa163154d3a62213 | 2026-11-01T18:12:39Z | /mcp | ok | 200 | 1232 | 5 | a327ba540a4f | per-receipt |
| 18fd22ec66096eaad8e0 | 2026-10-31T18:12:44Z | /mcp | ok | 200 | 1462 | 5 | a327ba540a4f | per-receipt |
| 2d1fd3dadbcace1715ea | 2026-10-30T18:12:41Z | /mcp | ok | 200 | 1150 | 5 | a327ba540a4f | per-receipt |
| 8030d139c24f365e4e2b | 2026-10-29T18:12:39Z | /mcp | ok | 200 | 1108 | 5 | a327ba540a4f | per-receipt |
| 142508e484bb58cd945f | 2026-10-28T18:12:41Z | /mcp | ok | 200 | 1598 | 5 | a327ba540a4f | per-receipt |
| d167e3da16ae9f3eea72 | 2026-10-27T18:15:56Z | /mcp | ok | 200 | 1792 | 5 | a327ba540a4f | per-receipt |
| 1c69e7fbe12137039065 | 2026-10-26T18:12:41Z | /mcp | ok | 200 | 1417 | 5 | a327ba540a4f | per-receipt |
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