Penny x402 utilities for Windsurf

io.github.pennyops/penny-x402-utils

Pay-per-call dev utilities (hash, base64, uuid, URL, time, NIP-19, BOLT11) via x402 USDC on Base.

client:Windsurf transport:streamable-http tools:8

Install Penny x402 utilities in Windsurf

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

{
  "mcpServers": {
    "penny-x402-utils": {
      "serverUrl": "https://pennyagent.pythonanywhere.com/mcp"
    }
  }
}

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