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The Rust SDK provides a comprehensive set of libraries and tools for building real-time media applications with Media over QUIC. Built for performance and reliability, the Rust implementation is ideal for server-side components, native applications, and CDN infrastructure.

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Architecture

The Rust SDK follows a layered architecture: 
┌─────────────────┐
│   Application   │   Your business logic
├─────────────────┤
│      hang       │   Media-specific encoding/streaming
│                 │   - codecs, containers, catalog
├─────────────────┤
│    moq-lite     │   Generic pub/sub transport
│                 │   - broadcasts, tracks, groups, frames
├─────────────────┤
│  WebTransport   │   Browser-compatible QUIC
│      QUIC       │   - HTTP/3 handshake, multiplexing
└─────────────────┘
Rule: The CDN must not know anything about your application, media codecs, or available tracks. Everything can be fully E2EE.

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Core Crates

moq-lite

Core pub/sub transport protocol with built-in concurrency and deduplication.

moq-native

Helper library for configuring QUIC endpoints in native applications.

hang

Media-specific encoding/streaming layered on top of moq-lite.

moq-mux

Media muxers and demuxers for fMP4, CMAF, and HLS formats.

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Applications

moq-relay

Clusterable relay server for fan-out and cross-region distribution.

moq-cli

CLI tool for publishing media to MoQ relays.

moq-token

JWT authentication library and CLI tool.

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Advanced

libmoq

C bindings for moq-lite, enabling integration with C/C++ applications.

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Key Features

  • Real-time latency using QUIC for prioritization and partial reliability
  • Massive scale designed for fan-out and cross-region clustering
  • Generic pub/sub for any live data, not just media
  • Built-in concurrency with async/await and Tokio
  • Production-ready with comprehensive error handling

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Package Repository

All crates are published on crates.io and documented on docs.rs.

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Source Code

The Rust SDK is open source and available on GitHub.

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Getting Started

Ready to start building? Check out the Getting Started guide to install the SDK and run your first example.

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