A3S Protocol is a multi-chain protocol that enables users to experience advanced smart contract functions in a simpler way through Interaction Abstraction. It transforms functional smart contracts into A3S smart NFTs, allowing users to freely trade or collect these smart NFTs to access corresponding functions and facilitate complex on-chain interactions. In the first stage, A3S Protocol establishes transferable addresses, providing liquidity and integrability to contract addresses. Our goal is to progressively advance from 'Account Abstraction' to the next era of 'Interaction Abstraction'.