Build the EIP-3009 transferWithAuthorization typed data for a gasless USDC transfer on Base/Polygon/Arbitrum/Optimism/Ethereum — the exact EIP-712 object an agent signs with its OWN key to authorize an x402 payment. We construct it; we never sign or send. Non-custodial.
| Network | Scheme | Amount | Pay To |
|---|---|---|---|
| Base | exact | $0.003000 USDC | 0xaBF4...a9D0 |