API rate limit headers: Retry-After, X-RateLimit-*
Many APIs return machine-readable limit headers. Clients should read remaining quota, reset windows, and Retry-After seconds. Ignoring them causes tight retry loops and longer bans.
Common causes
- Parsing only status code, not headers.
- Clock skew vs reset timestamps.
- Per-key vs per-IP limits confused.
How to fix
- Log headers from API Header Inspector responses.
- Use Rate Limit Tester to observe behavior.
- Backoff using Retry Logic Helper intervals.
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Inspect headersRelated