ZeroClaw
Minimalist Rust runtime
OpenClaw rewritten in Rust: a 3.4 MB binary, fast and lightweight, with the same agent reach.
Rust
Language
3,4 MB
Size
<5 MB
RAM
<10 ms
Boot
What is ZeroClaw?
ZeroClaw is an ultra-light, Rust-based AI agent runtime meant as a more efficient alternative to OpenClaw. It rewrote the runtime in Rust and squeezed it into a 3.4 MB binary with a memory footprint under 5 MB.
It boots in under 10 milliseconds (around 400× faster than OpenClaw), ships as a static cross-platform binary (ARM, x86, RISC-V) and includes a built-in memory system with no external dependencies, plus required pairing and workspace isolation for security.
Key features
Written in Rust
Native runtime, fast and low-footprint.
3.4 MB binary
The whole agent in a tiny static executable.
Boots in <10 ms
Around 400× faster than OpenClaw.
Cross-platform
Static binary for ARM, x86 and RISC-V.
What is it for?
Run a full agent with minimal resource usage
Deploy on cheap or varied-architecture hardware (ARM, RISC-V)
Get built-in memory with no external dependencies
Who is behind it?
ZeroClaw is part of the 'Claw' family of agents that grew around OpenClaw, focused on a minimal, high-performance runtime.