我构建了无需 API 密钥的付费 AI 服务供代理使用——x402 的工作原理
📄 中文摘要
x402 是一种基于 HTTP 的原生支付协议，允许代理通过发送请求、使用 USDC 付款来获取响应，而无需注册、仪表板或 OAuth 认证。作者在现有的 cortex API 上构建了三个认知服务接口，包括去重门（Dedup Gate）、新颖性门（Novelty Gate）和上下文门（Context Gate）。去重门以 0.002 美元的价格提供语义去重服务，帮助用户判断文本是否新颖；新颖性门以 0.005 美元的价格帮助代理决定是否存储信息；上下文门则以 0.01 美元的价格提供上下文相关的服务。这些服务简化了用户体验，降低了使用门槛。
📄 English Summary
I Built Paid AI Services That Agents Can Use Without API Keys — Here's How x402 Works
x402 is a native payment protocol for HTTP that allows agents to send requests and receive responses by paying with USDC, without the need for signup, dashboards, or OAuth authentication. The author has built three cognitive service endpoints on the existing cortex API: Dedup Gate, Novelty Gate, and Context Gate. The Dedup Gate, priced at $0.002, offers semantic deduplication to help users determine if text is novel; the Novelty Gate, at $0.005, assists agents in deciding whether to store information; and the Context Gate, priced at $0.01, provides context-related services. These offerings simplify user experience and lower the barrier to entry.
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