This document describes the billing requirements for reCAPTCHA.
When to enable billing
To enable and use reCAPTCHA on Google Cloud, you don't need to enable billing for your Google Cloud project. However, you need to enable billing for your Google Cloud project in the following scenarios:
You expect to exceed the free monthly allowance of reCAPTCHA, which is 10,000 assessments per month. For more information about the free monthly allowance, see Pricing.
You are about to exceed the free monthly allowance of reCAPTCHA and you want to continue using reCAPTCHA to protect your website or mobile application.
You will receive email notifications to enable billing when you are approaching the free monthly allowance and when you exceed it. Enabling the billing account before you exceed the free monthly allowance helps to keep you and your users safe from fraudulent activities, spam, and abuse.
If you don't enable billing for your Google Cloud project, reCAPTCHA returns an error for any new request after you reach the free monthly allowance.
You want access to features that are exclusive to reCAPTCHA Standard and Enterprise tiers. Enabling billing is required for those features even if you expect your usage to be within the free monthly allowance.
To learn how to enable billing for your project, see Enable billing for a project.
Billing resources
Use the following resources to get help with billing questions:
To view billing reports, see View your billing reports and cost trends.
To learn more about billing, read the Cloud Billing documentation.
To resolve billing concerns, use the Google Cloud Billing Troubleshooter.
To request help with billing questions, contact Cloud Billing Support.
To change or disable billing on a project, go to the Billing page in the Google Cloud console. For more information, see Modify a project's billing settings.