I’ve made a few JSON apps as long as I have paid hosting. Most of these are non-practical for the average user and I only make them for my own personal internet use. Here is one that anyone can use. It returns image dimensions, bit size, mime type and more info about any image.
Here is the source so you can self host an app like this: http://jakeis.com/json/image_info/index.php?source I have shared economy Godaddy hosting now and I have no longer have my dedicated IP with SSL so this application/json will not embed on https websites.
Click “Generate” and see. It’s easier to show than explain.
This is an iFrame that shows the JSON.
Also, the reason I use $_SERVER["REQUEST_URI"] instead of a $_GET["query"] like a normal callback app, is because many hosts blacklist entire URLs passed as queries. Also the query of the url in query gets included this way.