@402lane/client

A fetch wrapper that transparently pays x402 challenges in USDG on Robinhood Chain (chain 4663) — part of 402LANE.

import { createSigner, payingFetch } from "@402lane/client";

const pay = payingFetch({
  account: createSigner(process.env.WALLET_KEY),
  maxValue: 10_000n,        // spend cap per request: 0.01 USDG
});

const res = await pay("https://api.example.dev/report");
// 402 → signs EIP-3009 authorization → retries → 200

Includes a per-payment spend cap and network allowlist so an agent can pay autonomously without being drained. See the docs. MIT.