Vapi Support Voice Demo

Realtime voice support demo built on Deepgram Voice Agent + Aura sandbox TTS.

Features

• Vapi-style customer support flow
• Sandbox voice only (aura-3-canopy-en)
• Optional progressive TTS (/speak + /add_text)
• Expressive mode toggle in UI
• Debug panel with latency and flow events

Local Run

1. Create .env from .env.example
2. Set DEEPGRAM_API_KEY
3. Install deps and run

python3 -m venv .venv
source .venv/bin/activate
pip install -r requirements.txt
python client.py

Open http://127.0.0.1:5051.

Deploy (Fly.io)

1. Login:

flyctl auth login

2. Pick a unique app name and create app:

flyctl apps create <your-unique-app-name>

3. Update fly.toml:

• Set app = '<your-unique-app-name>'

4. Set required secret:

flyctl secrets set DEEPGRAM_API_KEY=<your_key>

5. Deploy:

flyctl deploy

6. Open:

flyctl open

Your public URL will be:

https://<your-unique-app-name>.fly.dev