Tracked since July 13 at 18:06 · 14 analyses · Updated July 18 at 14:03

x402:让 AI 智能体按次购买 API 与数据

x402 把 HTTP 402 Payment Required 状态码变成开放支付协议,使智能体无需注册账号或预充订阅,就能用稳定币按次购买网络服务。

  • 智能体请求 API;服务端返回 HTTP 402,并附带金额、币种和收款地址等付款要求。
  • 智能体钱包自动签署付款载荷并再次提交;服务端或 Facilitator 通过 /verify 与 /settle 完成验证和结算。
  • 付款有效后返回 API、内容、算力或数据,支付与资源请求处于同一个 HTTP 流程。
  • 适用于按请求收费的 API、付费内容、智能体购买数据与算力,以及微服务之间的机器支付。

它把 AI 服务商业化从“开户、API Key、订阅额度”改成机器可以自主完成的即时按次支付。

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