Python module for interacting with OCLC's WorldCat APIs, including the WorldCat Search API, the WorldCat Registry API and the xID APIs (xISBN, xISSN, and xOCLCNUM).
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worldcat is a Python module that works with OCLC's WorldCat Affiliate web
services (see <>). worldcat currently works
with the WorldCat Search API, the xID (xISBN, xISSN, and xOCLCNUM) APIs, and
lookups using the WorldCat Registry API.

Requests to the WorldCat Search API key require an API key provided by OCLC
(see <>), available to all
OCLC members at no charge. The authors of this module do not endorse the terms
of use of OCLC APIs nor are liable for any violations of their Terms of Use.

You can use easy_install to install worldcat:
    easy_install worldcat
If you prefer, you can check out the latest version of the source using

    git clone
To install:

    python install


- Develop test suite
- Write detailed documentation
- Add support for WorldCat Identities, Terminologies Services, Metadata 
  Crosswalk Services, and WorldCat Registry Search
- Add access token support to xISBN and xISSN requests


GPL/BSD (Dual Licensed), portions under the Apache License


Mark A. Matienzo <>
Etienne Posthumus <> (Google App Engine example)