The title on the website says "licensing & distribution", the paragraph under that repeats it and the code example shows some software trying to authorize a serial key to see if it's valid or not.

I'm not sure how they could make it clearer? Maybe I'm in some sort of licensing-bubble, yet I haven't actually done any of those things myself, just seemed crystal-clear what it is from spending 30 seconds on the top of their website.

It seems reasonably clear to me, yes - although "distribution" could mean a lot of things.

As the documentation is all public, though, it's easy enough to see what they're offering.