According to CoinMeta, Ethereum co-founder Vitalik Buterin showcased a privacy solution AI Agent that he developed personally. This solution integrates zkapi, Tor networks, random traffic masking, and local large model prompt rewriting functions into the AI Agent tool PI. The scheme assigns an independent Tor circuit for each conversation, hides payment-related information through zkapi, and uses local Qwen models to rewrite request content. Vitalik stated that the current solution is already somewhat practical, but there are still noticeable delays when starting new conversations, and the protection against service providers and entry nodes colluding for time correlation analysis is limited. In the future, a dedicated hybrid network (mixnet) may be required. He also revealed that the zkapi costs for deposits and withdrawals on the Ethereum mainnet are about to be further reduced.