The WorldCat Search API is currently experiencing an outage due to performance issues. We are investigating the problem and will post further information when we have a resolution timeline. None of OCLC’s other APIs are effected by this outage. We apologize for the inconvenience.
Update:
As of 2:30pm U.S. Central time, the WorldCat Search API is up and running. We will continue to monitor the service but please let us know if you experience any performance issues. Thank you for your patience.
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Karen Coombs
Senior Product Analyst