Specify Server In Item Search

Bit of an odd question, but is there a way to specify what server you're doing an item search on from the URI? I don't mean selecting the server from the drop-down, but specifically as an endpoint that can be changed in the URI, similar to the following (which does not work):

https://www.ffxiah.com/search/item?q=Sphere&sid=20

If a GET param exists to do this, it's eluding me, or if there's an existing public API that can be called, I'm unaware of it.

As far as I know, there isn't a public API, they probably don't want people scraping as a ghetto backend for their bots. It isn't real time anyway.