What's this API stuff?
It comes in flavors
LibraryThing API flavors
Covers from LibraryThing
LibraryThing makes all its 1,000,000 member-uploaded covers available.
Basic APIs and Easy Linking
These APIs are basic REST-ful URL transactions. You hit a URL and LibraryThing sends back some data. It doesn't get much easier than that.
Web Services APIs
The LibraryThing Web Services APIs offer a slightly more advanced form of interaction but it's still easy. The format is a simple HTTP GET or POST action. The only hiccup is that you must get an API Key to use the services. We plan to dramatically expand the offerings of the LibraryThing Web Services APIs soon.
In the wild
Are you using the APIs?
If you are using any of the LibraryThing APIs in your application or on your web site we would love to hear about it and link to it.