The OCLC is a nonprofit computer library service and research organization which maintains WorldCat, a global network of library content. The knowledge base API is a service used for e-resource discovery and linking. It provides developer access to a library's information in the WorldCat knowledge base where users can find out what electronic journals or ebooks their library has, and how to link to them. The API uses RESTful calls and responses are formatted in XML and JSON.
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