Google Recaptcha 3

reCAPTCHA is a free service that protects your website from spam and abuse. reCAPTCHA uses an advanced risk analysis engine and adaptive challenges to keep automated software from engaging in abusive activities on your site. It does this while letting your valid users pass through with ease.

If you looking to setup reCapthcaV3 and Modx we would recommned using the following Modx Extra. 

In order to use this Extra you need to first install via the installer in your Modx manager and then generate API keys for your domain here: https://www.google.com/recaptcha/admin. Be sure to generate keys for the version of ReCaptcha you wish to implement.