There's an interesting idea—integrating the ERC-8004 standard into the x402 payment process. What can it ultimately achieve? At the moment a transaction is completed, both parties can rate each other, and these ratings are directly written into the blockchain, forming a permanent transaction reputation record.

From another perspective, this addresses the trust issue between AI agents. Agents can review historical transaction ratings to select cooperation partners, greatly reducing the risk of deception. Compared to traditional paper promises, on-chain data is harder to tamper with and more transparent.

Essentially, it connects payment settlement with reputation accumulation—payment is no longer just a transfer; it also generates a trustworthy transaction history. This mechanism indeed helps promote the secure operation of the AI agent economy, turning the past performance of trading partners into a tangible basis for decision-making.