Google Assistant supports "Actions" that are configurable,
and support voice syntheses in SSML
Informative podcast interview with many useful links:
Actions on Google with Mandy Chan | Google Cloud Platform Podcast
Build Actions for the Google Assistant (Level 1)
"Actions on Google is a developer platform that lets you create software to extend the functionality of the Google Assistant, Google's virtual personal assistant, across more than 500 million devices, including smart speakers, phones, cars, TVs, headphones, and more."
- Your Actions run entirely in the cloud, even when users talk to them on their phone, smart home device, or watch.
- Every Action supports a specific intent and has a corresponding fulfillment that processes the intent.
- The user's device sends the user's utterance to the Google Assistant, which routes it to your fulfillment service via HTTP POST requests.
- Your fulfillment figures out a relevant response and sends that back to the Assistant, which ultimately returns it to the user.
SSML-Builder - Building Better Google Home and Amazon Alexa Skills
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