wp_enqueue_script + how to load JS or CSS in one URL merge call?

Is there any proper wordpress way of including the JS and CSS through one merged URL?

So that instead of loading in x number of separate calls for each JS asset, it can be all merged into one URL? Samething for CSS.

I know this is easy enough to do using straight up PHP, but I wanted to check if wordpress has some nifty way of combining requests.

WordPress core has not such a mechanism. I’ve seen Caching plugins who do this. One of them is Semiologic Cache (WordPress Pluin) and there are probably others who do this as well.