Maker of the Cat API the author uses here - love his use-case, and a wonderfully useful & concise write-up to boot.
We also make the results available for each safe image via the API so anyone can create their own ML model on top.
Both theCatAPI.com and its sister theDogAPI.com are used in a lot of schools, colleges, bootcamps, and even coding interviews so we try and make them as clean as possible.