Rasa

Rasa provides a framework to manage dialogue and conversational agents. Get started with a tutorial on building a voice agent with Rasa and Cartesia, from start to finish:

Tutorial: Build a Voice Agent with Rasa and Cartesia

Full tutorial for building a voice agent with Rasa and Cartesia.

For implementation details, see their documentation:

Rasa > Docs > Cartesia

Rasa documentation for using Cartesia TTS.