x402 Becomes an Open Standard: Linux Foundation Launches x402 Foundation With 40 Members
The Linux Foundation has operationally launched the x402 Foundation. Coinbase handed the payment protocol to open governance; 40 organizations are members — including Visa, Mastercard, Stripe and the Solana Foundation.
What happened
On July 14, 2026, the Linux Foundation operationally launched the x402 Foundation — a standards body for payments that run directly over HTTP. At the same time, the contribution of the x402 protocol by Coinbase into formal, open governance was completed. Since the intent to launch was announced in April, 40 organizations have joined as members, per the Linux Foundation.
What x402 is
x402 embeds payment capabilities directly into web interactions: AI agents, APIs, and applications should be able to send and receive payments as seamlessly as they exchange data today. The standard is deliberately payment-type agnostic — from traditional cards to stablecoins — and, per the Linux Foundation, is meant to avoid vendor lock-in. For what the agent stack looks like on Solana, see our background piece: AI agents on Solana: x402 explained.
Who is involved
The Linux Foundation lists as Premier Members, among others, Adyen, Amazon Web Services, American Express, Circle, Cloudflare, Coinbase, Fiserv, Google, Mastercard, MoonPay, Ripple, Shopify, Stripe, and Visa — as well as the Solana Foundation.
Important context: Solana is one of several chain representatives here, not an exclusive partner. The Monad Foundation and the Stellar Development Foundation sit at the same premier tier. General members include the NEAR Foundation, Polygon Labs, Injective, and LayerZero Labs; the Cardano Foundation is an associate member. The standard is explicitly designed to be chain-neutral.
The numbers for context
According to a CoinDesk report from July 15, x402 handled roughly 75 million transactions over the preceding 30 days — which together moved only around $24 million, averaging 32 cents per payment. Roughly 94,000 buyer accounts and 22,000 seller accounts were involved, per the same report.
The pattern is clear: very many, very small machine payments rather than large transfers. It points to a real but still young market — high frequency at low value.
Context
- The actual news value lies in the lineup: card networks (Visa, Mastercard, American Express), payment providers (Stripe, Adyen, Fiserv), and cloud and commerce platforms (Google, AWS, Cloudflare, Shopify) are sitting at the same table as crypto players.
- A standards body is a structure, not a product. The governance handover does not mean specifications are finished or market shares settled.
- For Solana, premier membership means a say in standardization — no more and no less.
- One practical example of x402 in use today was the AWS integration for charging AI traffic. On the payment rails behind it: Stablecoins on Solana compared.
Note: This is reporting, not investment advice.
What to watch
- Whether and when the Foundation publishes a formal specification
- Whether the value moved grows alongside the transaction count
- What role stablecoins play versus traditional cards within the standard
Sources
- Linux Foundation — Operational Launch of x402 Foundation
- CoinDesk — Visa, Mastercard and Ripple join the standard letting AI agents pay in stablecoins