Google launches AI payments protocol with stablecoin support, partners with Coinbase

Google has launched a new open-source payment system intended to help AI apps move money around, as per Fortune. The open-source payment service includes payment options using credit cards, debit cards, and stablecoins.

It was designed in partnership with Coinbase, the Ethereum Foundation, and more than 60 companies, including American Express and Salesforce.Cast your vote. (Source: Roundtable)

According to Fortune, James Tromans, Google's head of Web3, said the system was constructed "from the ground up" to accommodate both legacy payment systems and "upcoming capabilities such as stablecoins." The logo of US' multinational corporation and technology company Google is pictured at the International Motor Show IAA in MunichGetty Images

He stated that the companies also took steps to ensure interoperability between Google's payment mechanisms and those of Coinbase, according to Erik Reppel, head of Coinbase Developer Platform Engineering, speaking to Fortune.

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The launch follows a communications protocol introduced by Google in April for making AI "agents"-algorithms built for specific purposes- to communicate with one another.

The new payments protocol allows safe transfers between such agents, whether they are financial advisers locating mortgage offers or personal shopping bots selecting clothing items online.

GENIUS Act paves the way for new stablecoin adoption

As U.S. policies become more friendly toward crypto, Big Tech is becoming more interested in stablecoins, especially after the GENIUS Act made its way into law. Interestingly, on Sept. 16, American Express Travel also stepped into blockchain with its own mobile app.

Related: What are tokenized stocks? Explained

Since July 2025, stablecoins have seemed to explode after the GENIUS Act created the first-ever U.S. federal regulatory framework for issuing stablecoins. Shares of Circle, the issuer of the USDC stablecoin, rose markedly in value. Tether announced a U.S.-regulated stablecoin.

According to Coinbase Institutional, the stablecoin market cap could reach $1.2 trillion by the end of 2028, while McKinsey expects it to exceed $400 billion by the end of 2025 and reach approximately US$2 trillion by 2028.

Edited by:Mehab Qureshi

This story was originally reported by TheStreet on Sep 16, 2025, where it first appeared in the MARKETS section. Add TheStreet as a Preferred Source by clicking here.

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