Unverified50% confidenceFactExact time
In the x402 protocol, when the server receives an unpaid request it returns 402 along with the payment requirements (amount, receiving address, chain, currency); the client constructs an on-chain transfer or signed authorization and replays the request, and the server returns the resource after verification.
1
Sources
50%
Confidence
Long-term
Relevance
10/13/2026
First Seen
Sources
Related Entities
Related Claims
UnverifiedIn the x402 protocol flow, when an AI agent requests a paid resource, the server returns a 402 status, whereupon the agent automatically completes payment authorization and re-sends the request, with no human intervention required throughout.77% similarUnverifiedThe x402 payment protocol allows service providers to directly require payment at the HTTP layer, enabling agents to complete the full request–payment–response loop in a single step when requesting model inference.72% similarUnverifiedL402协议的机制是：服务器返回402状态码并附带闪电网络发票和macaroon，客户端支付后获得preimage，将macaroon与支付凭证组合作为访问令牌70% similarUnverified资源服务器可通过令牌自省（Token Introspection，RFC 7662）确认请求方是否具备所需权限55% similarUnverifiedSome serverless and PaaS platforms collect the complete response before returning it, breaking streaming output.54% similar
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