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NullClaw

Fastest, smallest, and fully autonomous AI assistant infrastructure written in Zig

Zig active 6.0k performancelightweightzig

About

The smallest fully autonomous AI assistant infrastructure — a static Zig binary that fits on any $5 board, boots in milliseconds, and requires nothing but libc. 678 KB binary, <2 ms startup, 22+ providers, 17 channels, fully pluggable architecture.

At a Glance

Runs On

Server / VPS / DockerEmbedded / IoT / RPi

LLM Required

Yes — needs API key

MCP Support

Integrations

22+

Ecosystem Role

Reimplementation

Performance

Binary: 678KB

Startup: <2ms

678 KB Zig binary — runs on $5 hardware, 22+ providers, 17 channels, fully pluggable everything

Editorial Take

NullClaw sits in the OpenClaw family as a reimplementation rather than a generic AI agent tool. It is written in Zig and currently shows 6.0k GitHub stars, which gives a quick sense of where it fits between experimentation and mainstream adoption.

NullClaw is best understood as a response to the tradeoffs in OpenClaw itself. Compared with the flagship project, its community is roughly 47x smaller, but that smaller scope often exists because the project is optimizing for a sharper use case: minimal-footprint environments.

Operationally, this project targets minimal-footprint environments. Its deployment surface spans Server / VPS / Docker, Embedded / IoT / RPi.

Best For

Minimal-footprint environments

+ It already has meaningful community validation at 6.0k GitHub stars.
+ Its platform story explicitly includes constrained hardware, not just servers and laptops.
+ 22+ integrations give it a broader out-of-the-box workflow surface than most peer projects.
+ The published performance profile suggests a deliberate focus on runtime efficiency rather than feature sprawl.

Tradeoffs

What to understand before choosing NullClaw over another project in the ecosystem.

- It still depends on an external LLM provider, so token spend and vendor reliability remain part of the operating model.
- Teams standardizing on MCP will need custom integration work or a different tool choice.
- Its specialization around performance can be a limitation if you need a broader, more general-purpose assistant runtime.

GitHub Stats

#15 of 41 on the leaderboard →

Stars

★ 6.0k

+1.6k this week

Forks

709

Open Issues

Last Commit

0d ago

License: MIT Latest release: v2026.3.8

OpenClaw Relationship

NullClaw is an OpenClaw-inspired project — part of the growing ecosystem of personal AI agent frameworks that trace their lineage to Peter Steinberger's original self-hosted assistant.

nullclaw/nullclaw

Added to Shelldex on February 26, 2026

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