> It's still a LOT better than COinS for Zotero, I assume though.

Yes, if only because you get more complete metadata with things like
RIS than COinS does via OpenURL.  I do like the theoretical benefit of
a metadata format request API , but the promise of richer metadata
(primarily for Zotero) was ultimately why I chose unAPI over COinS.
And yeah, better documentation would be nice, thanks for looking into
it.

-Chad