JANIS
JANIS is a C# powered personal assistant. J.A.N.I.S stands for Just Another Non-human Intelligence Software. Currently JANIS supports Windows OP, but in the future it may will support Android and IOS. JANIS is provided with a simple interface, for now you can type your requests, and JANIS will answer with voice. In the not so far future, JANIS will have the ability to hear, which will make the UI & UX much better.
I bypassed JANIS's server completely by creating my own backend using APIs from services such as Google, Wikipedia and Wolfram Alpha.