x402-proxy

nachog00/x402-proxy
★ 0 stars Rust Browser/Web Updated 5d ago
Rust stdio MCP proxy that auto-signs x402 USDC micropayments on Base to reach paid MCP servers — no account. 1Password key, exact + upto (Permit2) schemes, viem-cross-validated.
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Quick Install

Copy the config for your editor. Some servers may need additional setup — check the README.

Add to claude_desktop_config.json:

{
  "mcpServers": {
    "x402-proxy": {
      "command": "cargo",
      "args": [
        "run",
        "--",
        "x402-proxy"
      ]
    }
  }
}

README Excerpt

Use **paid MCP servers without an account.** `x402-proxy` is a small stdio MCP server you place in front of a paid HTTP MCP server; when a tool call requires payment, it signs an [x402](https://x402.org) USDC micropayment on Base and retries the call — transparently, per call, up to a ceiling you set. Your signing