Now that we have access to worldcat we can add a lookup item next to the ISBN field in Cite book and possibly other templates where an ISBN might be expected. Although I am not 100% sure this is allowed, it kind of depends on how you read the contract.

Please note that if we do this, we must include the text ("Provided by WorldCat" OR "Powered by WorldCat") AND include the pinwheel Worldcat logo, in either the horizontal or vertical format, available here: https://www.oclc.org/en/news/media-kit.html