You can use these credentials to authenticate the following nodes:
Create a MailerLite account.
Refer to MailerLite’s API documentation for more information about the service.
To configure this credential, you’ll need:
Enable the Classic API toggle if the API key is for a MailerLite Classic account instead of the newer MailerLite experience.
Most new MailerLite accounts and all free accounts should disable the Classic API toggle. You can find out which version of MailerLite you are using and learn more about the differences between the two in the MailerLite FAQ.