How do you moderate what is uploaded and check for copyright for example. I am always confused how solo developers make sure that nothing malicious is uploaded. Surely you don't have time to moderate everything yourself.

We layer AWS Rekognition and GCP Vision to check if it's safe, does not contain a human, and actually contains a Cat. The ones that make it through are then manually reviewed to be included in the public results.

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.