x402 Doctor for Windsurf

com.twelvepermissions/x402-doctor

Diagnose x402 seller endpoints: what is wrong with your 402 challenge, and how to fix it.

client:Windsurf transport:streamable-http tools:3

Install x402 Doctor in Windsurf

~/.codeium/windsurf/mcp_config.json · windows: %USERPROFILE%\.codeium\windsurf\mcp_config.json

{
  "mcpServers": {
    "x402-doctor": {
      "serverUrl": "https://x402-doctor.tsharpe.workers.dev/mcp"
    }
  }
}

Global only — Windsurf has no per-project MCP config. Refresh Cascade after saving. Windsurf docs