An AI Agent with Your Card: The Industry Agrees, You're the Missing Piece
The Linux Foundation has announced the operational launch of the x402 Foundation, a new open governance body tasked with standardizing native internet payments for AI agents, APIs, and applications. On this occasion, Coinbase completed its donation of the x402 protocol, from which the foundation takes its name, transferring its development to the community.
The idea behind x402 is to incorporate payment capabilities directly into web interactions that occur via HTTP, allowing a software agent to send and receive money with the same naturalness as it exchanges data. The protocol aims to support various types of payments, from traditional cards to stablecoins, under a governance that is openly neutral with respect to individual providers and designed to prevent anyone from being tied to a single operator.
Since the letter of intent announced last April, 40 organizations have joined, and the composition of this list is the most significant aspect. At the top level, the card circuits (Visa, Mastercard, American Express), payment processors (Stripe, Adyen, Fiserv), cloud infrastructure giants (AWS, Google, Cloudflare), and several names from the crypto and stablecoin world, from Circle to Ripple, and from the Solana Foundation to the Stellar Development Foundation sit at the same table. On the e-commerce front, Shopify appears as well. For the Linux Foundation, this is yet another project that expands its perimeter well beyond the kernel and free software from which it takes its name, continuing its legacy with Kubernetes, Node.js, or PyTorch.
Coinbase's Bet on Spending Agents
The protocol originated at Coinbase. Lincoln Murr, the AI product lead at the company, explained that x402 addresses a concrete problem: AI agents did not have a native and interoperable way to make payments. Moving the protocol under the Linux Foundation, he added, is how an open technology earns lasting trust across the industry.
The framework that Murr himself outlined last month in an interview with CNBC is more ambitious. "The fundamental idea is to give agents access to money and, through this financial independence, expand their capabilities to practically anything on the internet," he stated, drawing a parallel with the shift from desktop to mobile that internet companies experienced in the 2010s. His argument is that, by the end of the 2020s, agents will become the new primary economic actors on the web.
Among the participants, it is Circle that promises the most concrete numbers: with x402 and the stablecoin USDC, the company claims that an agent can make payments that settle in a few seconds for a fraction of a cent. This figure comes from the provider and is not independently verifiable, but it illustrates the type of transaction the protocol aims for: automatic micro-payments between programs.
The Premise: Entrusting Money to Agents
On the x402 project site, it is presented under the banner of five "zeros": zero protocol fees, zero waits, zero friction, zero centralization, and zero restrictions. These are objectives that the newly constituted consortium aims to transform into a shared standard rather than the technology of a single player.
However, there is a premise that supports the entire structure: all this makes sense only for those willing to let a software agent directly manage their financial transactions. The consensus among payment circuits, processors, and cloud infrastructures that typically compete with each other indicates how urgent the industry considers this endeavor. Whether and how quickly users will trust it is a different question, and remains the most significant uncertainty.