Not sure why this is getting downvoted, because it's a reasonable question - the answer being that such scraping requires a lot more time and technical expertis

Not sure why this is getting downvoted, because it's a reasonable question - the answer being that such scraping requires a lot more time and technical expertise to engineer than a simple API call. Also devolves into a cat and mouse game between your application's backend and whatever proxy they put in front of yelp like cloudflare, which you'll probably lose or will be prohibitively expensive.