This is the setting for API like Google, Facebook, etc…
- Mailchimp API Key: To connect your MailChimp account you will need to enter your API keys into the necessary field. For reference https://kb.mailchimp.com/integrations/api-integrations/about-api-keys
- Google Map API Key: To connect Google map for your site, you must give the API key. For reference https://developers.google.com/maps/documentation/javascript/get-api-key