Ethereum is positioning itself as a key player in the emerging AI agent economy with the introduction of the ERC-8004 proposal. This initiative aims to establish a system for identity, reputation, and verification for AI agents on the Ethereum blockchain. By leveraging on-chain records, AI agents can achieve verifiable identities and credit scores, with task verification facilitated through staking, zero-knowledge proofs, or trusted execution environments. Coupled with machine payment protocols like x402, this framework is set to form the economic infrastructure for AI agents. Ethereum's strategic shift from a DeFi platform to a neutral coordination layer for AI networks underscores its commitment to providing trust and settlement foundations for future AI interactions.