Calling local api on a server from a hosted website

I'm currently hosting a website and I'm trying to call an API on a remote server. This remote server has a website running locally, and I'm trying to call a certain API from my website to the remote server's localhost. Is something like this possible, or would I have to host the website on the remote server so it isn't locally hosted.

For instance, would something like http://IP_address_of_server_goes_here:8000/get_matching_data/?XXXX be possible to get some data from this localhost?