API Rate Limit Calculator
Rate Limit Planning
Calculate request distribution within rate limits
Concurrent User Estimation
Estimate API calls generated by concurrent users
Formula
Requests/Second = Rate Limit / Period | Total Time = Total Requests / Requests per Second
Frequently Asked Questions
What is API rate limiting?
Rate limiting restricts the number of API requests a client can make within a time window. Common limits are 100 requests/minute or 1000 requests/hour. Exceeding the limit typically returns HTTP 429 (Too Many Requests). It protects servers from abuse and ensures fair usage.
How should I handle rate limits in my application?
Implement exponential backoff (wait 1s, 2s, 4s, etc. on retries), use request queuing, cache responses when possible, batch requests, and monitor your usage. Check response headers like X-RateLimit-Remaining to track your quota.
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