Rate Limit Header Parser
Parse RateLimit/Limit headers — limits, remaining, reset times — from any API response. Read 429s correctly before retrying — local parsing, free, no signup.
How to Use the Rate Limit Header Parser
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Frequently Asked Questions
Which header standard?
IETF RateLimit (Limit/Remaining/Reset seconds) and legacy X-RateLimit-* both parse. GitHub-style (X-RateLimit-Reset epoch) converts to wait durations automatically.
429 handling?
Read Retry-After first (seconds or HTTP-date), else Reset timestamp. Sleep that long plus jitter — immediate retries extend bans.
Why do limits differ per endpoint?
Search, write, and auth endpoints carry separate buckets with different costs. Parse per-endpoint headers, never assume global.
Is header data uploaded?
No — parsing runs locally in your browser. Nothing leaves your device.
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Last updated October 2026