【Coinbase开发者平台宣布推出基于HTTP的开源支付协议x402】金色财经报道，Coinbase开发者平台宣布推出全新开源支付协议x402，旨在激活互联网长期保留未启用的HTTP 402 状态码“Payment Required”，将其转化为真正的链上支付层，适用于API服务商、内容创作者、上下文协议等新型场景。x402允许服务器请求支付，客户端（包括人类与智能代理）即时响应，支持微支付按次付费，无需繁琐订阅。Coinbase表示，该协议有望简化Web3支付流程，为代理经济与链上服务提供新基础设施，目前x402已开放源码，欢迎开发者参与共建。
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