Archive for the ‘lccn’ Category

Friday, February 15th, 2008

ThingISBN adds LCCNs, OCLC numbers

ThingISBN, our popular ISBN-based API, supports and returns data for two more identifiers: LCCN and OCLC.

At core, ThingISBN—blogged before here and here—takes an ISBN and returns a simple XML list of other ISBNs, corresponding to other “editions” of the work, eg.

Now, if you add &allids=1 to the ISBN, the XML will include relevant LCCN and OCLC numbers, eg.

You can also feed ThingISBN both numbers, eg.,

If you feed it an LCCN or an OCLC number you don’t need to add “&allids=1″ to get back these identifiers.

What’s next?

  • I haven’t added LCCNs and OCLC numbers to the ThingISBN feed, yet.
  • Although there are some details to be worked out, this advance looks forward to adding support for LCCNs and OCLC numbers to LibraryThing for Libraries.

Tell us what’s going on. I know that ThingISBN gets a lot of use, some of it even in accordance with its Terms of Use. If you’re using ThingISBN, I’d love to hear how on a new wiki page I’ve created, Projects Currently Using ThingISBN.

Caveat. ThingISBN is free for non-commercial use. Commercial use requires our say-so. Read more here.

In the news! Coincidentally, LCCNs are in the news this week. Yesterday, the Library of Congress announced a “LCCN Permalink,” a smart bid to convert a vital but underused set of permanent, unique IDs, the LCCN (Library of Congress Control Number), into the regnant permanent, unqiue ID, the URL. See Catalogablog for the announcement.

Labels: apis, lccn, lccns, oclc, oclc numbers, thingisbn