API Terms of Use

By using any of LibraryThing's APIs you agree to our site-wide Terms of Use and the terms listed here.

  • LibraryThing's APIs are available for non-commercial use only, except with permission.
  • You can make only one request per second on an API.
  • You access to the LibraryThing APIs are at LibraryThing's sole discretion and can be revolked at any time.