MemberPress + Invisible Recaptcha plugin integration (untested)

mepr-plus-invisible-recaptcha.php

<?php
//Integrates MemberPress with https://wordpress.org/plugins/invisible-recaptcha/
//This is untested code ATM
function add_invisible_recaptcha_mepr_signup($membership_ID) {
  ?>
    <div class="mp-form-row mepr_invisible_recaptcha">
      <?php do_action('google_invre_render_widget_action'); ?>
    </div>
  <?php
}
add_filter('mepr-checkout-before-submit', 'add_invisible_recaptcha_mepr_signup');

function validate_invisible_recaptcha_mepr_signup($errors) {
  $is_valid = apply_filters('google_invre_is_valid_request_filter', true);
  if(!$is_valid) {
    $errors[] = "Failed Captcha";
  }
  return $errors;
}
add_filter('mepr-validate-signup', 'validate_invisible_recaptcha_mepr_signup');

@cartpauj

Ah, thanks, that's good to know. I missed that.

I may give that a try instead of ReCaptcha v3 and see if it solves my client's issue.

I appreciate you getting back to me.