livekit-plugins-cartesia

What it is and what it does

This package provides a plugin that connects Cartesia's voice AI services to the LiveKit Agents framework, enabling real-time speech-to-text and text-to-speech capabilities in video and audio applications. It acts as a bridge between LiveKit's agent orchestration layer and Cartesia's API, allowing developers to build voice-interactive applications without directly managing Cartesia's HTTP endpoints.

The plugin requires a Cartesia API key and integrates as a standard LiveKit Agents component. It supports Python 3.10 and later, and is distributed as a pure Python wheel with a single runtime dependency on livekit-agents. The package is actively maintained and part of the larger LiveKit agents ecosystem.

Use it for:

• Build real-time voice chatbots that transcribe user speech and synthesize responses in live video calls.
• Add voice AI capabilities to LiveKit conference applications for automated transcription and voice commands.
• Create voice-driven interactive agents that listen, process, and speak within a LiveKit session.
• Integrate Cartesia's voice quality into existing LiveKit Agents workflows without custom API management.
• Develop accessibility features that provide real-time speech-to-text and text-to-speech in live meetings.

Worth the install?

AI-flagged interpretation of the facts on this page — verify before relying

Integrates Cartesia's voice AI services (speech-to-text and text-to-speech) into LiveKit Agents for real-time voice applications.

Yes. The package is actively maintained (released 1 day ago), has low installation friction, permissive licensing, no known vulnerabilities, and integrates a well-documented third-party voice service into a popular framework. Install if you need Cartesia's voice AI in a LiveKit Agents application and have a valid API key.

Install

livekit-plugins-cartesia on PyPI

pip install livekit-plugins-cartesia

uv add livekit-plugins-cartesia

poetry add livekit-plugins-cartesia

Installing livekit-plugins-cartesia

Before you install

Low friction installation as a pure Python wheel. Actively maintained with a release 1 day old and a well-starred upstream repository (13003 stars). Single runtime dependency on livekit-agents.

License in practice

Apache 2.0 permissive license allows commercial and private use with minimal restrictions.

Quickstart

pip install livekit-plugins-cartesia

import livekit_plugins_cartesia
# Set CARTESIA_API_KEY environment variable, then use Cartesia STT/TTS with LiveKit Agents

Requires Python 3.10 or later and a valid Cartesia API key set as the CARTESIA_API_KEY environment variable.

Verify before relying

• Whether Cartesia STT and TTS are feature-complete or have known limitations compared to other providers.
• Pricing and rate limits for Cartesia API calls through this plugin.
• Whether the plugin supports streaming audio or only batch processing.

Package facts

Evidence: livekit_plugins_cartesia-1.6.10-py3-none-any.whl

Keywords: ai, audio, cartesia, livekit, realtime, video, voice

Tags

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Further reading