Rate limits and the 429 error

Updated 3 October 2026

Every plan has a daily lookup limit and a requests-per-second limit. Both apply to your whole account, across all of its keys.

• Daily limit: resets at 00:00 UTC. Each response includes the X-RateLimit-Remaining-Day header so you can see how many lookups are left.
• Per-second limit: short bursts above it are refused with HTTP 429.

Avoiding 429 errors

• Cache results for repeat visitors instead of looking up the same IP again.
• Spread batch jobs out over time rather than sending everything at once.
• If you regularly need more, contact us about a higher plan.