ERC-8004

ERC-8004 establishes a trustless, on-chain layer for autonomous AI agents, standardizing their Identity, Reputation, and Validation via three core registries.

ERC-8004 (Trustless Agents) is the Ethereum standard establishing a minimal, composable trust layer for autonomous AI agents. It defines three lightweight on-chain registries: Identity (ERC-721 based), Reputation (verifiable client feedback), and Validation (cryptographic proof hooks). This framework enables trustless machine-to-machine interactions—essential for use cases like DeFi trading agents and decentralized code auditing. Co-authored by contributors from MetaMask, Google, and Coinbase, the standard supports tiered security models, from reputation systems to high-stakes zkML and TEE attestations.

https://eips.ethereum.org/EIPS/eip-8004