Is there any Google Now API that we can integrate our own Apps into Now?

Question

How can I provide my information or cards of my App-Data to Google Now? Is there any API that I can use?

Answer 1

Google Now API is only provided for who register their app with Google, it has been private. Google control which Cards will be shown on their Google Now App. So you need to contact with Google and register your app to get the Now API and then you can build your own Now Card.