Something very important is happening in Silicon Valley right now, and it will directly affect the future structure of the internet. Major cloud companies such as Google, AWS, Microsoft, and Cloudflare, along with payment firms such as Stripe, Visa, and Mastercard, are working together on the x402 protocol. This isn’t just about reviving an old technical code—it’s an attempt to rewrite the future internet’s payment system.

Think about how the internet works today. Information flows very quickly—sending messages, booking taxis, ordering food—everything seems instant. But when it comes to actually spending money, the story changes. Open an account, link a bank card, recharge, and then buy a package. This process works fine for humans, but it’s completely unsuitable for AI agents.

An AI agent isn’t a human sitting somewhere and working. It’s a continuously running engine that makes decisions every moment. Need computing power? Buy it directly. Need a data interface? Pay instantly. It doesn’t think, “I’ll upgrade to the professional version,” but only decides whether to spend 0.001 dollars right now to complete the task or not. This is where x402 comes in.

In fact, this number 402 has been in HTTP for 402 years, but it was never used. It was originally reserved for digital currency and micro-payments. But this logic didn’t work for human users. No one wants to feel the hassle of paying again and again for small amounts, and then checking balances through programming. But machines? Machines don’t get tired, and they don’t complain. If the protocol is correct, it can automatically handle millions of tiny payments.

Now the question is: why did all these companies suddenly come together at the same time? Because they know that in the future, the most purchased resources won’t be content, but capabilities—computing power, bandwidth, model inference, data interfaces. These are what machines will need. Previously, all of these were sold in the form of packages: a full account system, billing, reconciliation for every transaction. If x402 starts working, these resources can be sold repeatedly in small amounts.

Stipe has made it clear that with the stablecoin feature, AI will be able to pay directly over the HTTP protocol without any complex account system. Visa has issued special standards for card payments. All of this shows that this isn’t just a new payment method—it’s an effort to completely remake the internet’s fee structure.

For Web3 companies like Coinbase and Circle, this is the biggest opportunity. Stablecoins will no longer just represent dollars; they will become a global payment tool that can be called directly through programs—especially when commerce shifts from humans to machines.

But this raises the real question for China. In the past, Chinese and foreign payment methods were different, but it didn’t make much of a difference because the trade infrastructure remained the same. But now, when fee collection starts happening directly at the protocol level, and settlement follows a global standard, the situation changes completely.

A question will arise for Chinese companies: will they only use this network, or can they become fee nodes? Will they provide capabilities only, or will they also define the rules? This isn’t just a technical question—it’s a question of securing a place in the fundamental infrastructure of the internet.

In the coming days, when AI agents truly start making payments at scale, this won’t be only a technological issue—it will become a matter of industrial power. Who will control the fees, who will build the settlement network, and who will set the default standards—all of that will be the most critical in the next era.