Original author: KarenZ, Foresight News

On April 2, the status code "402 Payment Required," which had been shelved for 30 years, officially established its own foundation.

The Linux Foundation, a benchmark institution in the open-source field, announced the launch of the x402 Foundation, while also accepting Coinbase's transfer of contributions to the x402 protocol.

Choosing to make the announcement on April 2 is itself a meme. More noteworthy is the founding member list that was released simultaneously. Coinbase, Cloudflare, and Stripe jointly issued a support statement, with over twenty organizations including Amazon Web Services, American Express, Google, Mastercard, Visa, Circle, Shopify, Microsoft, Solana Foundation, and Polygon Labs joining the initial member ranks.

This list can be described as "star-studded," with just a few names representing top players in finance, technology, and Web3 infrastructure.

However, it is quite ironic that most x402 ecosystem-related tokens have plummeted by 80%-98% from their peak. On one side is a technological concept that industry giants are collectively betting on, seemingly with limitless prospects, while on the other side is the almost collapsed price of tokens. This contradictory story deserves to be told.

The 30-Year Hole in the Internet

First, let's clarify one thing: 402 is not a new creation; it resurrects an old regulation that has been shelved for nearly 30 years.

In the 1990s, Tim Berners-Lee and his team included a status code when defining the HTTP protocol: 402 Payment Required. The meaning is very straightforward—servers can tell clients, "pay first, then get resources." However, there was no suitable payment infrastructure at that time, so 402 became the most famous "placeholder" in internet history.

Until Coinbase decided to activate it. Coinbase officially launched the x402 protocol in May 2025. Its logic is extremely simple: when a client (it can be a person or an AI Agent) requests a certain resource, the server returns a 402 status code along with payment specifications; the client evaluates the price, initiates a micro-payment in USDC on the blockchain, and then resubmits the request—all within seconds.

The elegance of this design lies in the fact that there is no need to register an account, no need for an API Key, and no need to establish a billing relationship beforehand. The AI Agent reads the 402 response, pays, gets the resource, and continues working—completely unattended.

Why did this become urgent in 2025? Because the explosion of AI Agents exposed the structural contradictions of payment systems. McKinsey predicted in October 2025 that by 2030, Agent Commerce, meaning AI Agents autonomously representing merchants and consumers to complete transactions, will coordinate to handle an economic value of $30 trillion to $50 trillion.

The money is there, but there are no tracks. x402 is that track.

Why Is Joining the Linux Foundation Important?

The governance has changed, and that is the most important thing.

To make an open-source project an industry reference standard, you need to prove that its governance does not depend on any single vendor. Take Kubernetes, the container orchestration platform, as an example; it was initially developed by Google and saw a sharp increase in adoption after being donated to the CNCF (under the Linux Foundation), eventually becoming the industry standard for container orchestration. This path has been verified many times.

Specifically for x402, the transfer means three things. First, the control of the protocol belongs to the community; Coinbase cannot unilaterally modify protocol rules or inject business interests into the standards. Linux Foundation CEO Jim Zemlin's words were: the x402 foundation will become a home governed by the community, ensuring the protocol evolves in a transparent, interoperable, and widely participatory manner.

Second, it lowers the compliance thresholds for large institutions. Companies like Mastercard and American Express have strict legal requirements and are unlikely to approve infrastructures that "rely on a single commercial company's protocol." Once the protocol belongs to a neutral nonprofit foundation, that hurdle disappears.

Third, transferring the protocol to the Linux Foundation sends a signal: this is the technical direction that the entire industry is jointly betting on. Coinbase voluntarily gave up ownership of the protocol in exchange for the entire industry’s willingness to co-build it.

The value of this deal lies in Coinbase's belief that after x402 becomes a true internet standard, the dividends it gains as the largest ecosystem participant will far exceed the costs of monopolizing this protocol.

What This Founding Member List Indicates

Looking back at the announcement on April 2, the founding member list is very worth reading closely.

22 founding members span four dimensions, basically listing the answer to the question "who needs AI Agent payments."

The payment and financial network is the heaviest layer: Visa, Stripe, Mastercard, American Express, Adyen, Fiserv, Circle, PPRO, KakaoPay, Ant International (Ant International appeared in Coinbase's announcement but was not mentioned in the announcement image or Linux documents). Together, these institutions handle the vast majority of consumer and merchant payment traffic globally.

Among them, Stripe is not only a co-initiator of the x402 foundation but is also promoting the Machine Payments Protocol, betting on both sides. Visa's statement is profound; its global growth product lead and strategic partner Rubail Birwadker stated that Visa's goal is to ensure safe and seamless payments whether AI Agents are trading anywhere, using credit cards or stablecoins.

On the cloud & infrastructure side are AWS, Google, Microsoft, Cloudflare; AWS has a reference implementation of x402 for the hosted infrastructure AgentCore used to build, deploy, and operate production-grade AI agents. Google Cloud's AP2 protocol incorporates x402 into the on-chain settlement layer. The head of AWS AgentCore noted that AI Agents, as autonomous participants in the digital economy, need to execute secure, frictionless payments which are no longer optional, but foundational capabilities.

On the Web3 side are Coinbase, Base, Solana Foundation, Polygon Labs, Circle, and thirdweb.

The business application layer includes Shopify, Sierra, Merit Systems (which developed x402scan, MPPscan, AgentCash), and Ampersend.ai, which can integrate x402 into e-commerce, content, and data transformation scenarios.

Here, let's highlight Merit Systems and Ampersend.ai.

Merit Systems is a startup focused on Open Agentic Commerce, covering multiple layers of the agent commercial stack: Discovery, developer tools, and mass-market applications, such as the x402 ecosystem browser x402scan, the ecosystem browser MPPscan for Machine Payments Protocol, CLI and agent skills AgentCash that enable AI agents to instantaneously access premium paid data and services, as well as the AI-driven business automation tool Poncho.

Ampersend.ai is a control layer for the agency economy, officially launched on April 2, supporting every Agent to create independent wallets and budgets for complete control.

This diverse member composition conveys several clear industry consensuses: First, AI autonomous payments are an irreversible technological trend, and no giant wants to be absent in this payment war concerning the future; second, open-source, neutral protocol standards are the foundation for cross-domain ecological collaboration, while closed solutions dominated by a single company cannot meet the needs of the entire industry; third, the future payment system will inevitably be a hybrid of traditional finance and blockchain technology, which are not oppositional but complementary and symbiotic.

Why Did Related Tokens Drop Over 90% Despite a Good Concept?

Now we arrive at the most subtle part.

First, let’s clarify one thing: the x402 protocol does not have an official token. The settlement currency for the protocol is USDC. AI Agent payments are made in USDC, and developers receive USDC as well. The entire design philosophy of the protocol is to make payments as transparent as HTTP requests—it fundamentally does not need an "x402 token" to capture value.

Well-known x402 ecosystem tokens include PING (the first token minted through the x402 protocol), Daydreams (focused on building autonomous agents and applications on the x402 payment track), PAYAI (a payment verification infrastructure project), with token prices having dropped 80%-98% from their previous highs.

On-chain data can more intuitively reflect the cooling of the ecosystem. The daily transaction volume on x402 has shrunk from a peak of about 3.8 million transactions in November 2025 to now a few tens of thousands; daily transaction value has fallen from over two million dollars to recent one or two thousand dollars.

Source: x402scan

This contrast of "hot concept, cold implementation" reflects several core logical misalignments in the crypto market:

1. Decoupling of "protocol standards" from "token capture": The success of a protocol does not mean that a certain ecosystem token can capture all value. When on-chain data shows no real application growth, market capitalization solely supported by narrative will inevitably collapse. More critically, the x402 protocol itself has obvious architectural limitations and application shortfalls; lacking built-in fraud detection, tax calculation, and refund logic, these defects are sufficient to become fatal shortcomings for the scalable application of enterprise-level AI Agents, making it difficult to support long-term value expectations for the token.

2. Asymmetry between institutional entry and retail expectations: When AWS and Coinbase announced their entry, formal protocol development and commercial realization might take years. The crypto market is accustomed to discounting the narrative of "the future is vast" prematurely. When the pace of actual adoption cannot keep up with the expansion speed of the narrative, a correction follows.

3. Early data being misleading: Although the x402 ecosystem once experienced explosive growth, Artemis's analysis at the end of 2025 pointed out that approximately 48% of transaction counts and 81% of transaction volumes in the x402 protocol were marked as non-organic. The data clearly indicates that the "prosperity" of the protocol was never supported by genuine demand from the beginning. However, the current situation is improving.

4. The drastic fall of x402 concept tokens is also partly affected by the overall market environment.

But there is no doubt that real agency commercial activities are far from emerging.

An Honest Conclusion

The launch of the x402 Foundation is a crucial step for this protocol to become a truly open standard. The simultaneous presence of Visa, Mastercard, and Google on the initiators' list is not just for show; it indicates that the x402 proposal has been recognized by traditional financial infrastructure as a direction "worth participating in shaping."

The fate of the x402 protocol ultimately depends on one simple thing: whether there are enough AI Agents that genuinely need and can autonomously complete micro-payments without human intervention.

The concept is real, and the future is real. But for investors, it is essential to distinguish between "technical victories" and "token speculation." A 98% drop is the collapse of a bubble, but upon the ruins, this foundational structure of the AI economy is just beginning to break ground.

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