Verified65% confidenceFactExact time
HTTP 402 is a status code reserved in RFC 7231 but rarely used historically, originally designed for future digital payment scenarios.
3
Sources
65%
Confidence
Long-term
Relevance
7/20/2026
First Seen
Sources
Related Claims
UnverifiedHTTP/1.1规范RFC 2616于1999年发布，在定义4xx客户端错误码时保留了402状态码72% similarUnverifiedHTTP status code 401 indicates authentication failure, 429 indicates rate limiting has been triggered, and 500 indicates a server-side error.66% similarUnverifiedCustom Connectors only support REST APIs exposed via HTTPS.59% similarUnverifiedWhen a rate limit dimension of an API provider is hit, the provider returns an HTTP 429 error.57% similarUnverifiedLog4j漏洞（CVE-2021-44228）允许攻击者通过特制字符串触发JNDI查找实现无需认证的远程代码执行55% similar
Cite This Claim
Stable URI
https://kongchang.com/claim/570220API
curl https://kongchang.com/api/v1/knowledge/claims/570220MCP
get_claim(id=570220)