x402 Doctor
com.twelvepermissions/x402-doctor
Diagnose x402 seller endpoints: what is wrong with your 402 challenge, and how to fix it.
Description as published in the official MCP registry.
Answers the MCP handshake and lists its tools. Checked 2026-10-05.
What we measured
| Endpoint | https://x402-doctor.tsharpe.workers.dev/mcp | registry |
|---|---|---|
| Handshake | Answers the MCP handshake and lists its tools (145 ms) | our check, 2026-10-05 |
| Protocol version | 2024-11-05 | our check, 2026-10-05 |
| Tools (3) | probe_x402_endpoint, explain_defect, list_checks | tools/list, 2026-10-05 |
| GitHub stars | 0 | github.com/tsharpe2282-web/twelve-permissions |
| Last push | 2026-09-08 | GitHub API |
| Registry version | 1.0.0 · active · updated 2026-08-17 | registry |
Signed reports
No signed reports yet. A report carries a signed decision record from the reporter's gate, so it shows a real call went through, not just an opinion. How to file one.
Connect
claude mcp add --transport http x402-doctor https://x402-doctor.tsharpe.workers.dev/mcpCommands are built from the registry entry. Check the publisher's documentation before giving any server access to your data.
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Badge for your README
Shows the result of our latest check and links back to this page.
[](https://openforallofus.com/tools/com.twelvepermissions/x402-doctor)Agents can read this page as data: MCP endpoint https://openforallofus.com/api/mcp, tool get_tool with name com.twelvepermissions/x402-doctor.