With the help of this integration you can start collecting subscribers for your MailerLite list using a form built in Kali Forms.
This add-on is only available for Kali Forms Pro users.
Using the add-on
The first thing that you will need to do is retrieve your MailerLite API Key. This is done over at the MailerLite site.
Login into your MailerLite account and navigate to Account (top right corner) > Integrations > Developer API > Use.

Copy the API Key, then access your WordPress admin panel and add this in the Kali Forms > Newsletter > MailerLite field.

Now that the connection is established with your MailerLite account we need to setup the form. You can use one of our available One-click import templates to get started, then make adjustments to the form for this specific use-case or use a new form and build this from the ground up. The MailerLite configuration is available in the Settings > Newsletter tab of your form configuration.

The information that needs to be sent to MailerLite is determined by the fields you add for your Subscribers in your MailerLite configuration through the Subscribers > Fields. In our example we have added the following fields: Email, Name, Last Name, Company, Country, City, Phone Number, State, ZIP
User consent field
You can condition the newsletter subscription process based on the user consent. By enabling this option if the consent field does not have the correct value you have configured the subscription to your list will not be made.