FastRTC
The Real-Time Communication Library for Python.
Turn any python function into a real-time audio and video stream over WebRTC or WebSockets.
Installation
pip install fastrtc
to use built-in pause detection (see ReplyOnPause), and text to speech (see Text To Speech), install the vad and tts extras:
pip install fastrtc[vad, tts]
Key Features
- 🗣️ Automatic Voice Detection and Turn Taking built-in, only worry about the logic for responding to the user.
- 💻 Automatic UI - Use the
.ui.launch()method to launch the webRTC-enabled built-in Gradio UI. - 🔌 Automatic WebRTC Support - Use the
.mount(app)method to mount the stream on a FastAPI app and get a webRTC endpoint for your own frontend! - ⚡️ Websocket Support - Use the
.mount(app)method to mount the stream on a FastAPI app and get a websocket endpoint for your own frontend! - 📞 Automatic Telephone Support - Use the
fastphone()method of the stream to launch the application and get a free temporary phone number! - 🤖 Completely customizable backend - A
Streamcan easily be mounted on a FastAPI app so you can easily extend it to fit your production application. See the Talk To Claude demo for an example on how to serve a custom JS frontend.