ETH, USDG & x402 payments

Send native ETH (18 decimals) or canonical USDG (6 decimals verified on-chain). Recipient and exact integer amount are reviewed. Transactions are simulated and gas checked before wallet consent; a hash is followed by receipt confirmation.

• Only x402 V2 exact on eip155:4663 with USDG is accepted.
• Global Dollar / version 1 / chain 4663 token domain is verified on-chain before signing.
• Resource, recipient, amount, domain and expiry are pinned.
• Paid requires facilitator evidence and the exact USDG transfer in a successful on-chain receipt.
• Interrupted signed payments are ambiguous and never automatically retried.

Transfers are public, not anonymous. ETH is not dollar-pegged; USDG market value is not guaranteed by token verification.