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Quack AI launches x402 BNB: Creating a unified payment and governance layer for the BNB chain.
Deep Tide TechFlow News, on October 29, Quack AI today announced the launch of x402 BNB, which is the first unified signature payment and governance layer solution on the BNB chain. This protocol simplifies the traditional “approve → transfer → pay” multi-step process into a single verifiable signature operation by integrating EIP-7702 delegated execution, EIP-712 witnessed signatures, and Gas fee sponsorship relay layer technology.
The core features of x402 BNB include a one-stop signature experience, a modular development stack, a secure design architecture, multi-asset support, and seamless compatibility. The protocol aims to provide a secure, gas-free, and accountable infrastructure for the Agent Economy (, addressing the pain points of liquidity operations on the BNB chain. Quack AI states that the complete specifications, smart contracts, and reference implementations will be released soon.