meclaw is a framework for composing complex agentic systems, not just agents: fast, secure, ontology-grounded, auditable and made for agents to build with, in one Rust binary. Use it to try a new harness structure in an afternoon, to grow an agentic OS of your own, or to build the next thing before it has a name.
meclaw-os is the reference implementation: a complete agentic OS, grown on that substrate and nothing else.
Three things that make a meclaw agent unique. A voice cell that listens and speaks on a wire protocol built for it. A web cell that gives the assistant a display of its own, where it shows you instead of telling you. And a vault that keeps your secrets secret, with every cell inside a kernel sandbox.
meclaw talks to any OpenAI-compatible endpoint and to MCP servers.
curl -fsSL https://github.com/mmeyerlein/meclaw/releases/latest/download/start.sh | sh
It asks for an OpenRouter key, grows the assistant and asks it one question. Set OPENROUTER_API_KEY first and it does not ask.
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MIT (LICENSE-MIT) or Apache 2.0 (LICENSE-APACHE), whichever you like.