Big Tech Endorses Linux x402 for AI Payments

- Linux Foundation unveils x402 Foundation to drive AI-powered payment protocols. - Major players including Google, Microsoft, Visa, and Stripe join forces. On April 3, 2026, the Linux Foundation launched the x402 Foundation to spearhead the development of the x402 protocol, an open-source standard for autonomous AI payments. The protocol empowers machine-to-machine transactions, allowing AI agents and services to pay for resources using both cryptocurrencies and traditional fiat currencies. Industry heavyweights like Google, Microsoft, Amazon Web Services, Visa, Mastercard, Stripe, and American Express back the initiative, signaling growing interest in the "machine economy." On April 3, CoinDesk reported that Coinbase initially helped develop the x402 protocol, which was then transferred to the Linux Foundation for impartial oversight. This transition aims to foster widespread adoption and prevent any single entity from dominating the protocol's development or governance. The shift aligns with a broader push to establish universal standards for autonomous commerce as AI systems increasingly function independently of human intervention. Despite strong industry backing, x402 has faced adoption hurdles. According to data from Dune Analytics, while transaction volumes peaked at 13.7 million weekly transactions in November 2025, they have since declined considerably, with weekly activity in 2026 fluctuating between 29,000 and 1.1 million transactions. This trend underscores the challenges in achieving sustainable, widespread usage. Meanwhile, competition in the autonomous payment space is heating up. Stripe partnered with blockchain startup Tempo to introduce the Machine Payments Protocol (MPP), a rival to x402. Visa supports MPP’s card payment infrastructure and is also testing proprietary tools for AI-driven transactions. These developments highlight the race among tech and financial giants to lead in machine-to-machine commerce. As of April 3 at 15:08 UTC, the latest market data shows Solana (SOL) is priced at $80.42, a 1.78% change over the past 24 hours. BNB (BNB) stands at $588.25, up 2.23%. Polygon (POL), formerly MATIC, is valued at $0.092, an increase of 0.87%.