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API Rate Limit Calculator
Calculate optimal API rate limits based on your users, endpoints, and server capacity. Get requests/sec, burst limits, quota allocation, and production-ready configs.
⚙ Server Capacity
Total server capacity in req/sec
Keep headroom for spikes (60-80% ideal)
Total instances behind load balancer
Average API response latency
👤 User Tiers
Define your API consumer tiers. Each tier gets a proportional share of total capacity.
Expected concurrent free users
Expected concurrent pro users
Expected concurrent enterprise users
🔗 Endpoints
Add your API endpoints with their relative cost/weight. Heavy endpoints (DB writes, file uploads) should have higher weights.