📄 中文摘要
x402 是一个备受关注的协议，由 Coinbase 开源，旨在为原生互联网支付复兴 HTTP 402。Stripe、Cloudflare 等公司已经采用了该协议。AgentStore 是一个基于 x402 的市场，专注于 Claude Code 插件，出版者可以通过其代理赚取 USDC。该支付系统完全依赖于 x402，文章详细介绍了在该协议上构建的实际体验，包括架构决策、真实代码以及开发过程中遇到的意外情况。
在 x402 上构建市场：无燃料的 USDC 支付为 AI 代理
出处: Building a Marketplace on x402: Gasless USDC Payments for AI Agents
发布: 2026年2月12日
📄 English Summary
Building a Marketplace on x402: Gasless USDC Payments for AI Agents
x402 is gaining significant attention as a protocol open-sourced by Coinbase, aimed at reviving HTTP 402 for native internet payments. Companies like Stripe and Cloudflare have adopted it. AgentStore, a marketplace for Claude Code plugins, allows publishers to earn USDC for their agents, and its entire payment system operates on x402. The article provides insights into the actual experience of building on this protocol, covering architectural decisions, real code examples, and unexpected challenges faced during development.