OpenFang: The Rust-Powered Agent OS That Works While You Sleep
A 32MB open-source agent operating system built in Rust that runs 7 autonomous agents on schedules — no prompts needed.
Most agent frameworks are glorified chatbot wrappers. OpenFang is something different: a full Agent Operating System written in Rust that runs autonomously on schedules, with zero user input required.
It ships with 7 built-in "Hands" — autonomous agents for tasks like competitor research (Collector), lead discovery (Lead), deep web research (Researcher), and social media management (Twitter). Under the hood: 137K lines of code, 14 Rust crates, 40 channel adapters, and 16 security layers including WASM sandboxing, Merkle audit chains, and prompt injection scanning. Cold start is ~180ms; idle memory ~40MB — a fraction of comparable Python frameworks.
Currently at v0.3.30 (pre-1.0, targeting mid-2026 stable), it supports 3 LLM backends (Anthropic, Gemini, OpenAI-compatible) and can import agents from LangChain or AutoGPT.
Why it matters: while everyone ships yet another Python wrapper, OpenFang is betting that the agent runtime layer needs to be rebuilt from scratch — in a systems language, with production-grade security baked in from day one.
Sources
- OpenFang on GitHub github.com
- OpenFang Official Site openfang.app
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