LibreFang

LibreFang is an open-source Agent Operating System written in Rust.

Website: https://librefang.ai/ GitHub: https://github.com/librefang/librefang

Quick Links

Getting Started — Install, configure, and run your first Agent
GitHub — Source code

Features

7 Built-in Hands

Clip, Lead, Collector, Predictor, Researcher, Twitter, Browser

16-Layer Security

WASM Sandbox, Merkle Hash Chain, Taint Tracking, SSRF Protection

40+ Channel Adapters

Telegram, Discord, Slack, Email, Webhooks, and more

27 LLM Providers

OpenAI, Anthropic, Gemini, Groq, DeepSeek, Ollama, and more

MCP & A2A Protocols

Model Context Protocol & Agent-to-Agent communication

Open Source

100% open source, Rust-based, self-hostable