Ethereum's AI Agent Settlement Layer: ERC-8004 Reshapes Decentralized AI Collaboration

The Ethereum Foundation is shifting its AI strategy towards the infrastructure layer, aiming to become the core for coordinating, verifying, and settling interactions between AI agents. By anchoring agent identities, payment records, credible proofs, and dispute resolution results on-chain, Ethereum aims to provide verifiable trust mechanisms for autonomous AI systems, building the underlying protocol for an AI-to-AI economy. The key to this model lies in "verification rather than control"—not interfering with the AI's decision-making logic, but ensuring that each agent's behavior is traceable and auditable through on-chain registries and cryptographic proofs. For example, when disputes arise from service outputs, the system can automatically trigger refunds, escrow mechanisms, or appeals processes, thereby reducing the risk of black-box operations and enhancing the overall system's reliability.

At the developer level, the ERC-8004 standard is becoming a core tool. This standard defines the on-chain structure of AI agent identities, behavioral history, and credible claims, supporting cross-contract agent discovery and reputation accumulation. Combined with zero-knowledge proof (ZK proofs) technology, it enables verification without exposing sensitive data, laying the foundation for a decentralized AI market. Practical application scenarios are concentrated in three main areas: micro-payment settlement, on-chain dispute resolution, and cross-platform reputation systems. These features help break platform monopolies, promote the free flow and collaboration of AI agents across different ecosystems, and form an open, interoperable market for intelligent agents.

Although Ethereum is limited by computing power, Gas costs, and latency in AI training and large-scale inference, its advantages lie in secure reputation, mature ecological standards, and a large developer community. In contrast, projects like NEAR and Solana are exploring more efficient AI execution layers, but Ethereum has chosen to focus on the critical role of "trust anchor," winning long-term value with the stability of the protocol layer. In short, Ethereum is not about running AI, but about enabling AI to securely and reliably trade and collaborate with each other—this is its core strategic positioning in the AI era.