Does Apple provide an API for SIRI?

Question

Is it possible that Apple does or will provide an API for Siri? It would be great if I can be sipping my coffee and say,

User: Hey Si

Answer 1

THIS IS NO LONGER ACCURATE:

There is no API and there is no indication of it changing anytime soon. There are private headers that you can look at by decompiling the SDK. This is a great synopsis:

Quora

You can be clever like RTM though, this is as close as it gets:

http://www.rememberthemilk.com/services/siri/