- WorldCat Search API 2.0
There are slight changes to the WSKey set up between 1.0 and 2.0. Depending on when you requested your Search API WSKey, your Key might need to be updated.
You can try to use your Key and see if it still works, if it doesn't please reach out to OCLC Support to have your key updated. Please include the name of your key and any error message that you are receiving when you submit your support ticket.