Google has launched the AP2 protocol to establish foundational rules for payments in the emerging Agent economy. Built on the Model Context Protocol and Agent-to-Agent protocols, AP2 introduces a dual authorization mechanism for secure, autonomous AI-driven transactions. The protocol aims to integrate crypto payments, particularly stablecoins, into mainstream AI applications, focusing initially on e-commerce and subscription services. Additionally, Google introduced the x402 extension, utilizing the HTTP 402 status code to enable native, on-chain payments for AI agents, facilitating microtransactions and seamless service access. This development marks a significant step toward a standardized Agent economy, with participation from Coinbase, Ethereum Foundation, and others.