Fastrtc

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fastrtc is a Python library for real-time communication that turns any Python function into an audio and video stream. It supports WebRTC and WebSockets for seamless integration and offers automatic voice detection and turn-taking.

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At a glance

Pricing

Open Source

Free tier

Yes

API

Yes

Skill level

Technical

About

What is fastrtc?

fastrtc is a powerful Python library designed for real-time communication, enabling developers to transform any Python function into a live audio and video stream. It leverages WebRTC and WebSockets for robust and flexible communication, making it suitable for a wide range of applications. Key features include automatic voice detection and turn-taking, simplifying the development of interactive voice applications. The library also provides automatic UI generation with Gradio, WebRTC and WebSocket support for custom frontends, and even automatic telephone support with temporary phone numbers. Its customizable backend allows for easy integration with existing FastAPI applications, offering extensive control for production environments.

Best used for

Ideal for developers who need to implement real-time audio and video streaming, build interactive voice assistants, and integrate live communication into web applications. Especially valuable for creating custom communication backends and leveraging existing Python functions for real-time interactions.

Common actions

stream audio/video

build real-time communication

integrate WebRTC

create voice assistants

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Capabilities

Key features

Real-time audio/video streaming
Automatic voice detection
Automatic UI generation
WebRTC support
WebSocket support
Automatic telephone support
Customizable backend

Target Audience

developer

Integrations

fastapigradio

Pricing & Plans

Open Source

Free

FAQs

What kind of real-time communication does fastrtc support?

fastrtc supports real-time audio and video streaming over both WebRTC and WebSockets. This allows for flexible integration into various applications, whether you need direct browser-to-browser communication or a server-mediated approach for your real-time data.

Can fastrtc be integrated with existing web frameworks?

Yes, fastrtc can be easily mounted onto a FastAPI application, providing a WebRTC or WebSocket endpoint for your custom frontend. This makes it highly adaptable for integrating real-time communication features into your existing production systems.

Does fastrtc offer any built-in UI for testing?

Yes, fastrtc includes a built-in Gradio UI that can be launched with the `.ui.launch()` method. This provides a convenient way to test and share your real-time streams without needing to develop a custom frontend immediately.

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