40 Financial and Tech Giants Join x402 Foundation to Drive Unified Standards for Agent Payments

Visa, Mastercard, American Express, Google, AWS, Stripe, Ripple, and Coinbase are among 40 institutions that have joined the x402 Foundation under the Linux Foundation, aiming to standardize and enable cross-platform interoperability for internet-native payment protocols.

x402 allows AI agents, applications, and APIs to automatically complete payments via HTTP requests, enabling pay-per-use access to data, computing power, and other digital services. The foundation also plans to promote protocol compatibility with stablecoins, card networks, and various payment systems.

It is important to note that these 40 institutions have joined the x402 Foundation itself, not a separate working group. The participation of traditional payment networks, tech platforms, and blockchain companies in governance signals that agent payments are moving from fragmented experimentation toward open standards and scalable deployment.