After the changes from Google, WordPress Rankie now depends on an external API service named BrightData Serp API to get the SERP info. while it is not a free API but it is still much cheaper than depending on a web service that charges monthly subscriptions

1. Click on this link and create your account
2. Visit your billing tab and make sure you have added balance

   

3. Visit Proxies and Scraping tab

   

4. Click the Add button

   

5. Click SERP API

   

6. Click the ADD button

   

7. Copy the API token and paste to the plugin settings page

   

8. Copy the zone ID and paste to the plugin settings page