The core idea of Web3 is decentralization and trustlessness, and the introduction of AI technology can further enhance this concept, especially in user experience and personalized services. In traditional centralized platforms, personalized recommendation systems provide customized services by analyzing user behavior and interests, but these platforms often rely on a central database, which may leak user privacy. In Web3, AI can operate in a decentralized environment, leveraging blockchain technology to ensure user data privacy and security, processing personalized requests through a distributed network. For example, an AI Agent can provide customized investment advice or asset management services based on the user's asset allocation, risk preferences, and market conditions. Through AI smart contracts, users can engage in efficient and transparent transactions and interactions without relying on third-party intermediaries, which not only enhances user participation and autonomy but also reduces dependence on third-party trust. The application of AI in Web3 makes personalized services more intelligent while promoting the ideal of trustlessness under the premise of ensuring user privacy, ultimately achieving a more efficient and equitable digital ecosystem.