Major players across the cryptocurrency, payments, and cloud computing industries are accelerating efforts to build the financial infrastructure for a new kind of digital economy—one in which artificial intelligence agents, rather than humans, conduct transactions across the internet.
At the center of this shift is a growing push to develop AI agent payment systems capable of supporting high-frequency, low-value transactions between software programs. Traditional payment rails, designed for human users with credit cards and bank accounts, are widely seen as ill-suited for this emerging paradigm.
A coalition led by Coinbase Global Inc., Cloudflare Inc., and Stripe has taken a major step in that direction by forming a nonprofit foundation to oversee the development of x402, an open-source protocol designed to enable instant, machine-to-machine payments without human intervention.
The initiative brings together more than 20 additional members, including Microsoft Corp., Google, Amazon Web Services, and American Express Co., alongside crypto-focused organizations such as Circle Internet Group Inc. and Solana Foundation.
The foundation will operate under the umbrella of the Linux Foundation, a well-established body known for supporting collaborative software development, including the widely used Linux operating system. By placing x402 under neutral governance, its backers aim to encourage broad adoption and avoid dominance by any single company.
Stephanie Cohen, chief strategy officer at Cloudflare, said the move ensures that the emerging ecosystem remains open and interoperable. “By moving the x402 protocol under the stewardship of the Linux Foundation, we are ensuring that the future of agentic commerce remains neutral, interoperable, and accessible to everyone,” she said.
The push reflects a broader industry belief that AI agents will soon need to transact autonomously at massive scale. These agents could pay for computing resources, access to data, API calls, or digital services in real time, potentially executing millions of transactions per second across global networks.
Existing payment systems are not designed for such use cases. Today’s online payments typically pass through multiple intermediaries, including merchant banks, card networks, and issuing banks, each adding cost and latency. While this structure works for human-driven commerce, it becomes inefficient when applied to automated, high-frequency transactions.
The x402 protocol seeks to address these limitations by enabling direct, programmable payments. Its name references a largely unused element of the internet’s original design: the HTTP 402 status code, labeled “Payment Required.” Although envisioned decades ago as a mechanism for machine payments, it remained dormant—until now.
Launched by Coinbase last year, x402 allows applications, bots, and AI agents to initiate and settle payments instantly, often using stablecoins. According to data compiled by Artemis Analytics, the protocol has processed approximately 97 million transactions through Coinbase’s Base blockchain. However, daily usage remains relatively modest, with around 54,900 transactions recorded earlier this week, and it is unclear how much of that activity reflects real-world adoption versus testing.
The emergence of x402 has not gone unchallenged. A rival initiative, known as the Machine Payments Protocol, has been developed by Stripe in collaboration with the crypto investment firm Paradigm. The project is supported by Tempo, a blockchain platform designed specifically for stablecoin-based settlements.
Unlike x402, which emphasizes blockchain-native payment rails, the Machine Payments Protocol focuses on creating pre-funded payment sessions. This approach allows AI agents to conduct multiple micropayments without requiring repeated authorization, potentially improving efficiency for high-volume interactions.
Stripe’s involvement in both ecosystems highlights the fluid and competitive nature of the space. By integrating x402 while simultaneously backing a competing standard, the company is positioning itself to remain central regardless of which protocol gains traction.
Both initiatives have attracted significant industry backing. The Machine Payments Protocol ecosystem includes major partners such as Visa Inc., Mastercard Inc., OpenAI, Anthropic, and Deutsche Bank. These alliances reflect a growing recognition that the future of payments may extend beyond traditional consumer transactions.
Established payment networks are also adapting. Visa has expanded its infrastructure to support stablecoin settlements, while Mastercard recently agreed to acquire stablecoin infrastructure startup BVNK for $1.8 billion. Stripe has pursued a similar strategy, acquiring crypto wallet firm Privy and stablecoin startup Bridge to strengthen its capabilities in digital payments.
The underlying economic logic driving these developments is straightforward. Payments between AI agents are expected to be frequent, global, and low in value—conditions that make traditional card-based systems, with their relatively high fees, less attractive. In an environment where software is programmed to optimize for cost and efficiency, such fees become a natural target for disruption.
This dynamic has already had an impact on financial markets. Earlier this year, a research note from Citrini Research suggesting that AI agents could bypass card networks in favor of cheaper, blockchain-based alternatives triggered a sharp sell-off in payment company stocks.
Regulatory changes have also helped accelerate innovation. The passage of the GENIUS Act in the United States last July established a federal framework for stablecoins, requiring issuers to maintain full dollar backing and comply with oversight requirements. This has provided greater clarity and legitimacy for projects building on stablecoin-based payment systems.
Cloudflare has signaled its intention to play a more direct role in this ecosystem by announcing plans for a dollar-backed stablecoin, known as NET Dollar, designed specifically for automated transactions between AI agents. The project has yet to launch but underscores the growing convergence between infrastructure providers and financial services.
Despite the rapid progress, significant uncertainties remain. Analysts note that the competition between x402 and the Machine Payments Protocol is less about technical superiority at this stage and more about network effects. The protocol that attracts the largest number of developers, platforms, and enterprise users is likely to emerge as the dominant standard.
The stakes are high. If successful, these systems could become as fundamental to machine commerce as card networks have been to human spending. They would form the backbone of an internet economy where software agents transact seamlessly, enabling new business models and services.
However, there is also the possibility that the vision may not materialize at the scale its proponents expect. Adoption will depend on a range of factors, including developer interest, regulatory support, user trust, and the overall pace of AI integration into everyday applications.
Shan Aggarwal, chief business officer at Coinbase, expressed confidence in the long-term potential. “By backing the x402 Foundation, we’re helping build the native payment layer the internet has never had—one that’s global, programmable, and always on,” he said.
The development of AI agent payment systems represents a pivotal moment in the evolution of digital commerce. As industries converge around this emerging opportunity, the outcome of the current competition could shape how value is exchanged across the internet for years to come.
