Whitelist specific IP to scrap links from website using CURL

I have created a script which checks every page of my site for any kind of error. For this i’m using PHP CURL library and scraping contents of my site. But due to ithemes security plugin it shows 403 (server refused) error. Now i want to whitelist my IP so that it will allow to scrape data only for requests coming from my IP.

what settings or configurations i need to change to achieve this ?

Thanks.

https://www.ads-software.com/plugins/better-wp-security/