Build USDC transfer · Transfer Authorization

import { wrapFetchWithPayment } from "@x402/fetch";
import { privateKeyToAccount } from "viem/accounts";

const account = privateKeyToAccount(process.env.PRIVATE_KEY);
const fetchWithPay = wrapFetchWithPayment(fetch, account);

const res = await fetchWithPay("https://agent402.tools/api/transfer-authorization", {
  method: "POST",
  headers: { "Content-Type": "application/json" },
  body: JSON.stringify({
    "amount": 0.01,
    "from": "0x1111111111111111111111111111111111111111",
    "network": "base",
    "to": "0x2222222222222222222222222222222222222222"
  }),
});
const data = await res.json();

curl -X POST \
  "https://agent402.tools/api/transfer-authorization" \
  -H "Content-Type: application/json" \
  -d '{"amount":0.01,"from":"0x1111111111111111111111111111111111111111","network":"base","to":"0x2222222222222222222222222222222222222222"}' \
  -H "X-PAYMENT: <signed x402 payment>"

{
  "network": "base",
  "typedData": {
    "domain": {
      "chainId": 8453,
      "name": "USD Coin",
      "verifyingContract": "0x833589f…",
      "version": "2"
    },
    "message": {},
    "primaryType": "TransferWithAuthorization"
  }
}