Tiny, open, native coding agent.

fx

$curl -fsSL https://fx.sh/setup.sh | bash

fx · running through mesh · experimental

Needs Chrome/Edge 137+ with JSPI. The agent's LLM goes through zenproxy → OpenCode Zen free models — keys stay on the proxy, nothing to configure in the browser. Free models are rate-limited occasionally; set FX_ZENPROXY in localStorage to point at your own proxy.