I think it's Actions on Google (but I've never tried it): https://developers.google.com/actions/ https://developers.google.com/actions/ It looks like there's

I think it's Actions on Google (but I've never tried it): https://developers.google.com/actions/ https://developers.google.com/actions/ It looks like there's a "user friendly" version that's api.ai, and then there's an SDK, and the SDK seems to be node.js based. I'm not clear from reading it if you can do a private version just for your device. I'll have to kick the tires one of these days - thank you!