The IP address for external connections to your WordPress site can be found in MyKinsta under your site’s Info tab.
This is the IP address that other parties see when your site connects to another server. For example, if your site connects to a third-party payment processor like PayPal, you might need to provide PayPal with the external IP address so that they can add the IP to their allowlist on their end.
The IP address for external connections is different from your Site IP address. Your Site IP address is the IP address that your domain should be pointed to.