Coinbase and the Linux Foundation launched the x402 Foundation to oversee the development of a new open-source internet payments standard. The organization will steward the x402 protocol, which allows websites to request and receive payments as part of standard web traffic. This move follows Coinbase's decision to contribute the technology to the Linux Foundation to ensure neutral governance.
Reviving the HTTP 402 Status Code
The x402 protocol, originally introduced in 2025 by the Coinbase Developer Platform, repurposes the long-dormant HTTP 402 "Payment Required" status code. This technical approach creates a native payment layer for the web, allowing APIs and websites to request payment directly during HTTP interactions. This process occurs before the server grants access to specific content or services, streamlining the transaction flow.
"The internet was built on open protocols," Linux Foundation Executive Director Jim Zemlin said in a statement. "The x402 Foundation will create an open, community-governed home to develop these capabilities in the open, ensuring they evolve with transparency, interoperability, and broad participation across the ecosystem."
Enabling Agentic Commerce
The foundation attracts significant industry support from companies including Google, Stripe, Visa, Mastercard, Shopify, and Cloudflare. This collaboration focuses on the rise of AI agents that perform autonomous tasks for users online. These agents require a payment rail that does not rely on a human manually clicking a confirmation button for every transaction.
According to the Solana Foundation, the Solana network has been an early adopter, reportedly driving nearly 65% of x402 transaction volume this year. Other projects, such as Sam Altman's World, are integrating the protocol to help agents prove they represent real people. This infrastructure is critical for the transition toward a "pay-per-request" model using stablecoins.
Shift Toward Open Governance
This transition mirrors historical shifts in tech where proprietary tools become industry standards through open-source migration. By moving x402 under the Linux Foundation, the protocol avoids being tied to a single vendor, which encourages wider adoption among merchants and developers. This neutrality is intended to foster sustainability and accessibility across different cloud infrastructures.
"Agents are going to buy, sell, and transact on our behalf," Coinbase Chief Business Officer Shan Aggarwal told Decrypt. "They will need a payment rail that’s open, interoperable, and doesn’t require a human clicking confirm purchase."
Future Outlook for Web Payments
The x402 Foundation will now prioritize maintaining interoperability across various technical implementations. The group intends to provide better support for developers building services around this new standard. Observers should watch for the integration of x402 into more mainstream AI agents and its adoption by a broader range of global e-commerce platforms.