Linux Foundation Launches x402 Protocol to Enable AI Agents to Make Payments via HTTP

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The Linux Foundation officially launched the x402 Foundation on July 14, 2026, establishing an open-governance body to oversee the x402 protocol, a standard originally contributed by Coinbase. The protocol revives the long-dormant HTTP 402 status code to create a native payment layer within web requests, allowing AI agents to pay for APIs, data, and content autonomously without human involvement. Forty organizations have joined the foundation, including Visa, Mastercard, Stripe, Google, AWS, Coinbase, and Cloudflare, signaling broad industry alignment. Transactions on Base using x402 surpassed 100 million cumulatively through Q1 2026, with payments of $1 or more now accounting for 95% of transferred volume, suggesting a shift toward real commercial use. Settlement via the protocol takes roughly 200 milliseconds using stablecoins such as USDC, compared to one to three days for traditional ACH transfers.

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