Glossary

What is a reCAPTCHA assessment?

By the CaptchaKit team

Definition

In Google's reCAPTCHA, an assessment is the backend call that evaluates a token, created with the CreateAssessment method. It is also the unit that Google counts for billing.

What is Assessment?CCaptchaKitIn Google's reCAPTCHA, an assessment is the backend callthat evaluates a token, created with the CreateAssessmentmethod. It is also the unit that Google…

How it works

  1. The page gets a token from reCAPTCHA.
  2. Your backend calls CreateAssessment with the token.
  3. Google returns the result, and the call counts as one assessment.

Where it matters

  • Google's docs say the free tier covers 10,000 assessments a month per organization, with higher volumes billed.
  • Count assessments from your own server logs to predict cost.

In CaptchaKit

CaptchaKit does not bill per verification. Packs are one-time payments. The verify endpoint is rate limited, not metered.

Questions

What counts as an assessment?

Each CreateAssessment call. Google says SiteVerify requests are billed as CreateAssessment calls.

Is there a free tier?

Google lists 10,000 assessments a month free. Check its billing page for current terms.

Does CaptchaKit use assessments?

No. It verifies one token per call and does not charge per call.

Source

  1. Google Cloud: reCAPTCHA billing information (checked 2026-10-18)

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