subpay.ai
Remote MCP server host. 3 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/subpay.ai.
| URL | Transport | Registry Name | Last State | HTTP | Protocol | Tools | Recent Checks OK | Median ms | TLS | Last Checked |
|---|---|---|---|---|---|---|---|---|---|---|
https://subpay.ai/find/mcp | streamable-http | ai.subpay/tool-finder | ok | 200 | 2025-06-18 | 2 | – | 808 | ok | 8 h ago |
https://subpay.ai/invoice/mcp | streamable-http | ai.subpay/invoice-reader | ok | 200 | 2025-06-18 | 2 | – | 665 | ok | 26 min ago |
https://subpay.ai/mcp | streamable-http | ai.subpay/document-reader | ok | 200 | 2025-06-18 | 3 | – | 296 | ok | 26 min ago |
Paid Tools
| Tool | Stated Price | Payment Request Asks | Network | Pays To | Stated Vs Asked |
|---|---|---|---|---|---|
| extract_invoice | $0.04 | – | No payment request returned | ||
| extract_document | $0.04 | – | No payment request returned |
From our unpaid check: the tool list, plus at most 2 unpaid calls to tools that state a price, only to read the payment request. We never pay and never call tools that don't state a price. Stated prices are the server's own text or metadata. Full details: free quick check (JSON).
MCP Check Receipts (Newest First, Up To 10 Per Server)
| Receipt | UTC Time | Path | State | HTTP | ms | Tools | Tools sha256 | Signed |
|---|---|---|---|---|---|---|---|---|
| 5f877ae8795823eb3b28 | 2026-10-24T09:18:58Z | /mcp | ok | 200 | 296 | 3 | 2b17aaec5962 | per-receipt |
| 7b0c6e5e125eee083e2a | 2026-10-24T09:18:57Z | /invoice/mcp | ok | 200 | 665 | 2 | 3ea21257686b | per-receipt |
| 27eeb040848e97fca533 | 2026-10-24T01:21:46Z | /find/mcp | ok | 200 | 808 | 2 | 26bbc82f90a9 | per-receipt |
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