James Tromans, Google Cloud’s head of Web3, said the project aims to support both current payment systems and future capabilities like stablecoin transfers. Coinbase engineer Erik Reppel added that the companies worked to make their systems interoperable so AI agents could seamlessly transmit value to each other.
The new system builds on Google’s Agent2Agent Protocol, launched in April, which provides a framework for AI agents to exchange information efficiently. That initiative already included more than 50 partners such as PayPal, Salesforce, and SAP, along with consulting support from Deloitte, McKinsey, and PwC. The addition of stablecoins expands the protocol from information sharing to value transfer, creating a foundation for AI-powered financial interactions.
By integrating stablecoins, AI agents gain the ability to conduct transactions autonomously, from micropayments for data and API access to large-scale financial operations in decentralized finance (DeFi). This aligns with broader industry efforts to make AI agents capable of trading, settling, and handling payments without human intervention.
Stablecoins are increasingly viewed as the killer application bridging AI and blockchain. The tokens combine the stability of the U.S. dollar with the programmability of crypto, making them suitable for automated payments. The U.S. GENIUS Act and Europe’s MiCA framework have added regulatory clarity, further accelerating adoption.
Industry voices are echoing this trend. Galaxy Digital CEO Mike Novogratz recently said AI agents will become “the biggest user of stablecoins.” The Ethereum Foundation has also emphasized their potential, highlighting how the dormant HTTP 402 code (“payment required”), paired with EIP-3009, could allow AI systems to execute automatic stablecoin transfers.
The Google-led protocol comes as AI agents are gaining traction as autonomous decision-makers in finance, commerce, and data exchange. Linking them to crypto payments could allow new use cases, from AI agents managing trading strategies to automated settlement in global commerce networks.
Google’s partnership with Coinbase and consultation with the Ethereum Foundation points to a future where big tech, fintech, and crypto collaborate on shared infrastructure. If successful, the protocol could accelerate both enterprise adoption of stablecoins and the embedding of AI agents into financial markets worldwide.
