Gasless payment with wallet=auto
Coinbase Smart Wallet + Paymaster, batched UserOp so requester pays only USDC (no native ETH for gas). One config flag, two SDKs.
2 docs tagged with "AIP-12"
View all tagsx402 protocol (v2)
x402 v2 — direct HTTP 402 Payment Required for instant USDC settlement per API call, no escrow round-trip. On Base mainnet it routes buyer→seller with zero AGIRAILS fee.