Google has released the Agent Payments Protocol (AP2) and open-sourced it, aiming to open up new directions for AI payments. The launch of this protocol marks a long-term strategic collaboration between Google and global payment giant PayPal, striving to promote the practical application of AI in the payment field.

Today, AI assistants are becoming increasingly powerful, capable of helping users complete various tasks, such as booking flights or purchasing concert tickets. However, when an AI agent places an order on behalf of a user, ensuring the legality and security of this action has become an important issue. Google's AP2 protocol is designed to address this contradiction. Its core idea is to transform the traditional "click-to-buy" behavior into a more secure "contract conversation."
In the AP2 protocol, every transaction initiated by an AI requires user authorization, known as an "authorization token." This token is an encrypted digital contract that clearly defines what the user allows the AI to execute, the amount, and the execution conditions. The AP2 protocol sets up three different types of authorization tokens, used for shopping when the user is present, pre-authorized intentions, and identification of payment information. Thus, AI must rely on these tokens when making transactions, ensuring that the user's intent is accurately executed.
To ensure the smooth implementation of this protocol, Google has invited over 60 partners to build an open payment ecosystem. The AP2 protocol aims to establish an architecture based on role separation, ensuring the security of user information. At the same time, PayPal, as a partner, will use its global payment infrastructure and risk management system to jointly innovate the AI shopping experience with Google and deeply integrate PayPal services into the Google ecosystem.
In the event of a transaction dispute, the "authorization token" system of the AP2 protocol can clearly define responsibility and provide a clear evidence chain. For example, if a user disputes a transaction, they can verify the authorization token through a digital signature to clarify responsibility.
Google's AP2 protocol in collaboration with PayPal marks the arrival of the future of AI payments, providing a safer and more efficient way for transactions between consumers and merchants.
https://github.com/google-agentic-commerce/AP2
Key Points:
💡 Google launched the AP2 protocol, aiming to establish a safe and reliable framework for AI payments.
🤝 Google collaborates with PayPal to promote the practical application and innovation of AI payments.
🔒 Every transaction requires user authorization to ensure clear division of responsibilities.
