JSONPress - Allows you to request WordPress site via JSON/JSONP output.

Quick and easy world news headlines reader with multiple languages, categories and full search.

Moby Blog - One APP for All Your Wordpress Blog! FREE! Are you a Blogger? Have a WordPress Blog? Turn it for free into a user friendly app for smartphones and tablets in few minutes and Boost users and mobile visits by 25-60%! Moby Blog is a completely free mobile app that allows you to make your blog optimized for viewing on mobile devices. It allows your users to read the latest news from your blog through a user friendly app available for Android and iOS, at no extra charge. Only few minutes to activate!

Use the UI interface to test WP-JSON friendly.