[Quack AI Launches x402 BNB: The First Unified 'Sign-to-Pay' Layer for BNB Chain] Quack AI announced in a Medium article that it has launched a new infrastructure, x402 BNB—the first unified Sign-to-Pay and governance layer based on BNB Chain. It aims to provide a simplified and secure transaction experience for the on-chain Agent economy. The system is built on the EIP-7702 delegated execution and EIP-712 signature standards, enabling authorization, transfer, and payment to be completed with a single signature, eliminating the need for manual Gas handling or repeated confirmations. x402 BNB, developed by Quack AI, integrates a Gas-sponsoring relay layer and a strategic governance module, supporting scenarios such as multi-address payments, automatic renewals, and DAO fund allocation.