Not a SaaS. There’s no hosted version, no account system, no billing.
Not only a chat UI. It ships chat front-ends, the zerocode terminal interface, the web dashboard, and chat-platform channels, but those sit on top of an agent runtime. The runtime is the product; the chat surfaces are how you reach it, alongside the CLI, the REST gateway, and the ACP JSON-RPC interface.
Not a framework. You don’t build apps on top of ZeroClaw. You configure it and connect channels.
Not a toy. Production deployments run 24/7 on homelab SBCs, VPSes, and cloud VMs. The zeroclaw service subcommand manages systemd / launchctl / Windows Service registration out of the box.