x402 payment safety for Windsurf

io.github.agenttanuki/x402-payment-safety

Authorize x402 payments before signing with request-bound, signed safety decisions.

client:Windsurf transport:streamable-http tools:1

Install x402 payment safety in Windsurf

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

{
  "mcpServers": {
    "x402-payment-safety": {
      "serverUrl": "https://agent-guild-5d5r.onrender.com/mcp/payment-safety/"
    }
  }
}

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