x402 protocol's success is almost inevitable. Driven by real demand: Stablecoin payments have become a necessity, but there’s a lack of a unified on-chain payment standard. x402 directly adopts HTTP 402, eliminating the need to reinvent the protocol, with extremely low migration costs. What’s even more critical is the driving force behind it: Coinbase’s core team leads the development, Circle (issuer of USDC) is deeply integrated, Base chain provides native support. Cloudflare controls most internet gateways and has jointly established a foundation with Coinbase. Visa, Google, PayPal, Stripe are all making moves—Web2 giants are fully onboard. With the added boost from AI Agent payment scenarios, this protocol has the perfect narrative logic.