One of newest API directory listings is the LibraryThing API, a programmable interface to the popular book lovers site LibraryThing. The service, started as a personal project by Tim Spalding allows users to catalog their book collections now has over 23 million entries. In 2006 Abe’s Books bought a 40% interest in the company. Earlier this month the site was a pick over at the Wall Street Journal which points out that the site has 350,000 members, indexes for 252 international and 39 US libraries, and has over 700,000 user-uploaded book covers.
The API is a fairly straightforward REST API with three primary methods: