LiveKit

pip install livekit-agents livekit-plugins-cartesia

from livekit.plugins import cartesia

# using cartesia STT and TTS in a LiveKit agent
session = AgentSession(
    stt=cartesia.STT(
        api_key=os.environ.get("CARTESIA_API_KEY"),
    ),
    tts=cartesia.TTS(
        api_key=os.environ.get("CARTESIA_API_KEY"),
    ),
)

# clone and setup livekit/agents
git clone git@github.com:livekit/agents.git
cd agents
uv sync

# run with required API keys:
# - CARTESIA_API_KEY
# - LIVEKIT_URL, LIVEKIT_API_KEY, LIVEKIT_API_SECRET
# -  some LLM provider's API key
uv run examples/other/cartesia.py console

npm i @livekit/agents @livekit/agents-plugin-cartesia

import * as cartesia from "@livekit/agents-plugin-cartesia";

// using cartesia STT and TTS in a LiveKit agent
const session = new voice.AgentSession({
  stt: new cartesia.STT({
    apiKey: process.env.CARTESIA_API_KEY,
  }),
  tts: new cartesia.TTS({
    apiKey: process.env.CARTESIA_API_KEY,
  }),
});

# clone and setup livekit/agents-js
git clone git@github.com:livekit/agents-js.git
cd agents-js
pnpm i && pnpm run build

# run with required API keys:
# - CARTESIA_API_KEY
# - LIVEKIT_URL, LIVEKIT_API_KEY, LIVEKIT_API_SECRET
# -  some LLM provider's API key
node ./examples/src/cartesia.ts dev

# go to https://agents-playground.livekit.io/
# find your agent (make sure you're in the right org)
# then connect to it with WebRTC transport