ERC-8004: Trustless Agents

ERC-8004 is an Ethereum standard that extends the Agent-to-Agent (A2A) protocol with a trust layer, letting participants discover, choose, and interact with agents across organizational boundaries without pre-existing trust. It introduces three lightweight on-chain registries, named Identity, Reputation, and Validation, while leaving application-specific logic to off-chain components. The text states that the proposal is under public discussion and that its authors will work with the Linux Foundation and A2A ecosystem stakeholders to refine the specifications. It also acknowledges technical feedback from contributors including Dayan Brunie (Consensys), Wilson Chen (TensorBlock), and Austin Griffith (Ethereum Foundation), among others.