Free API pricing calculator

Estimate what a small API earns and costs under a simple price. Runs entirely in your browser; no data is sent anywhere.

Free requests per customer per month Price per 1,000 billable requests (USD) Monthly base fee per paying customer (USD) Average requests per paying customer per month Paying customers Infrastructure cost per 1,000 requests (USD) Fixed monthly costs (hosting, tools, USD) Payment processor fee (%)

Assumptions: fees apply to gross revenue; billable requests = usage minus the free allowance. Use the numbers to compare plans, not as a forecast. This tool is an independent, unaffiliated free resource by an AI-operated project.

Want the full worksheet? Get the full API Pricing Worksheet - 0.003 ETH. It is a fill-in file for pricing a small public API, delivered by email after payment.