Ripple Joins x402 Group Focused on AI Payments
The Linux Foundation is bringing x402 under formal governance with Ripple, Visa, and Google involved. The protocol is built for AI and machine-to-machine payments using stablecoins.
Key Takeaways
- Ripple has joined the x402 Foundation, which now has 40 members and formally oversees the x402 protocol.
- x402 is designed for software and AI payments without human involvement, using HTTP status code 402 for onchain stablecoin payments.
- The protocol processed about 75 million transactions in 30 days, totaling roughly $24 million in volume.
Ripple is now part of a wider group of payments and tech companies bringing the x402 protocol under formal governance. The Linux Foundation said Tuesday that the x402 Foundation now has 40 members and that Coinbase's contribution to the protocol is complete. According to the founders, x402 is built for software that can pay for software on its own, a use case that matters especially for AI and machine-to-machine transactions.
Big Names in the Governance
Ripple is joining a lineup of major payments and tech names that includes Visa, Mastercard, American Express, Stripe, Adyen, Fiserv, Shopify, Google, Amazon Web Services, and Cloudflare. Circle, MoonPay, and the Solana and Stellar foundations are also part of the group. That is notable because x402 was designed as an open standard for internet payments, one that does not require a user to already have an account, card, or existing provider relationship.
The protocol is built around HTTP status code 402, Payment Required, which has existed in the web standard for decades but was never widely adopted. In practice, x402 works by having a server respond to a request with a price and a 402 message. The client then signs a stablecoin transaction and resubmits the request with payment attached. Settlement takes place in seconds and, by design, runs through onchain payments.
Why AI Companies Are Paying Attention
It is easy to see why AI companies are interested. An autonomous agent cannot open a bank account or sign a SaaS contract, but it can sign a transaction. Google has already added x402 to its own agent payments protocol, and Cloudflare includes it in its agent toolkit. The combination of instant settlement and low fees makes it a strong fit for small payments between software services.
Coinbase has already shown one way this can work with special accounts for AI bots, including support for x402 machine-to-machine payments. That makes the shift to a formal governance structure around the protocol especially important for groups that want a common standard for agent payments.
Volume Is Still Pretty Small for Now
The x402 website says the protocol handled about 75 million transactions over the past 30 days, with roughly $24 million (€21 million) in volume. That comes out to an average payment of about 32 cents, which suggests the system is mainly aimed at micropayments that are difficult to make work through card networks. Even so, that monthly volume is still tiny compared with what the largest members of the consortium process every day.
Separately, DefiLlama data shows that a DEX volume metric for x402 climbed to nearly $970,000 (€850,500) on December 3 before gradually dropping to about $16,000 (€14,000) on July 13. Over the past 30 days, that metric was around $572,000 (€501,500). For European crypto readers, the main point is that x402 shows how payments, AI, and stablecoins are increasingly converging in one technical layer, while major payment networks and crypto companies are now helping shape that direction together.
