This Plugin makes use of the Contextual Web Search API (https://contextualwebsearch.com/). This Plugin allows you to create your own search engine from scratch or just integrate a search functionality into one of your apps. You can Sign Up for free API Key via https://rapidapi.com.
After installing this Plugin, head over to https://rapidapi.com and create an account (if you don't have one already). Once done, search for the "Contextual Web Search API" and copy your "X-RapidAPI-Key". Paste the key into the "API Key" section of this Plugin. You can access this Plugin via Dynamic Data-> Get Data from external API.