If you would like to add custom/additional headers (user agents, cookies, etc.), simply add them as parameters to the request, with the “wsa-” prefix.
Only use this feature to get customized results, do not use this feature to avoid blocks. WebScrapingAPI has a powerful internal engine that takes care of everything for you.
In the right-side box, you will find an example request used to scrape the URL https://httpbin.org/headers, which will mirror the headers sent.