Unverified50% confidenceFactExact time
The HTTP 429 status code is defined by RFC 6585 as 'Too Many Requests,' is a retryable status code, and is fundamentally different from 401 (authentication failure) and 403 (insufficient permissions).
1
Sources
50%
Confidence
Long-term
Relevance
10/15/2026
First Seen
Sources
Related Entities
Related Claims
UnverifiedHTTP status code 401 indicates authentication failure, 429 indicates rate limiting has been triggered, and 500 indicates a server-side error.77% similarUnverifiedHTTP 429 error indicates Too Many Requests; when multiple agents concurrently call the same free API, the server will frequently return this error.72% similarUnverifiedHTTP/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68% similarVerifiedHTTP 402 is a status code reserved in RFC 7231 but rarely used historically, originally designed for future digital payment scenarios.67% similarUnverifiedHTTP status codes that should be retried include: 429, 502, 503, 504, as well as network-layer failures such as connection resets and timeouts.67% similar
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