The future AI payment network needs to address three core issues: 1. How to ensure the secure payment of AI agents 2. How to make content creators earn income when AI agents reference content 3. How to establish a trustworthy and privacy preserving identity system This is what payment needs to do in the era of AI+crypto I checked the Google AP2 protocol and it mentioned that in order to provide security and trust for various payments such as stablecoins and cryptocurrencies, and to accelerate support for the web3 ecosystem, two partner technologies were used. One is the A2A x402 extension led by Coinbase, and the other is a commercial payment solution led by Mysten Labs (Sui development team) using Fast Programmable Trading Blocks (PTBs). A2A x402 solves several key issues in AI payments and greatly improves usability. 1. AI Agent Payment Channel: Providing AI intelligent agents with the ability to "spend money". Allow agents to conduct secure and programmable transactions in cryptocurrency (especially stablecoins), thereby achieving automated economic activities. 2. Cryptocurrency and stablecoin integration: Cryptocurrency can be used in the AP2 protocol, providing developers with a ready-made solution to integrate stablecoin payment functionality into agent-based applications. 3. Micro payment and service payment: similar to secret free payment, subscription payment, and associated payment. For example, an agent can make small, immediate, and trustless payments for a service provided by another agent, such as content access, data queries, or specific task execution. 4. Building a multi-agent collaborative ecosystem: protocols are used to span multiple AI agent systems. It solves the problem of proxy identity authentication and lays the foundation for building a reliable and economically feasible network composed of automated service agents. ➤ A2A x402 protocol The collaboration between Google, Coinbase, Ethereum Foundation, and MetaMask is a production solution for encrypted payments based on AI agents Payment between AI agents is no longer an experimental concept, but is gradually becoming a part of developers' actual construction methods. Integrate x402 into AP2 to support stablecoin payments. ➤ Mysten Labs' efficient commercial payment solution Sui not only solves the key issue of A2A x402 protocol, but also integrates the open protocols of web2. The entire solution utilizes Sui's fast programmable transaction blocks (PTBs), decentralized storage Walrus, and access control protocol Seal to ensure user data ownership. Then, zero knowledge proof techniques such as zkLogin were used to establish privacy first identity authentication. Build an open, secure, interoperable and autonomous AI driven Internet by combining Sui's programmable payment with A2A, MCP and other protocols and web2's open protocol. At present, the only AI+crypto payment platforms that are compatible are Sui and Base. Base is more of an experimental feature, but it provides Google with many good ideas. The solution provided by Sui is more comprehensive and can be efficiently combined with the open protocols of web2, which means that it is not impossible to embed crypto into web2 apps in the future, which is very exciting to think about. In addition, Sui itself has many technical collaborations and shares with web2 giants such as Google, Alibaba Cloud, Ant Digital, etc., so it should be the first public chain to integrate AI+crypto payments into web2 products