I decided to create this app because the API I had been using for my Random Quote Machine no longer works. Mashape merged with another company, and I believe the apis are no longer free.
Subsequently, I searched for other quote apis, and the only one I came across that is free, does NOT require keys, and is working, is the "What Does Trump Think?" API!.
I just started this app today (October 24, 2018), so it has a little way to go before it will be complete. Stay tuned!