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API Cost Estimator

Estimate monthly API spend from request volume, token usage, or metered unit pricing. Use it before launching a side project or automation job.

Calculator

What This Calculates

Estimated monthly API cost and cost per day.

Formula

Monthly cost = requests per day x days x cost per request + token units x token price

Example

A service that sends 2000 requests per day at 0.0004 each costs about 24 per 30-day month before token or storage charges.

Notes Before You Use It

  • Provider prices change, so always compare the estimate with the official pricing page.
  • Retries, background jobs, and development traffic can quietly raise real usage.
  • Set budget alerts before a new public launch.

FAQ

Why estimate before launch?

Small per-request prices can become large monthly bills once background jobs, retries, and users multiply.

Should I include failed requests?

Yes if your provider bills them. Many APIs charge for requests that return errors after processing.

How often should prices be updated?

Check official pricing before any public cost comparison or major budgeting decision.