Fa - AI Agent

Fa is a personal AI agent that lives on your phone and your Mac. Chat with any OpenAI-compatible provider, run a real sandboxed coding agent, let it build mini-apps for you, and generate images, speech, and music — privacy-first, with your keys in the Keychain. ANY PROVIDER, YOUR KEYS - OpenRouter, OpenAI, Anthropic, Google, Ollama — any OpenAI-compatible endpoint - Add custom providers with your own base URL and models - On-device models (Gemma, WebLLM) for offline, zero-key chats - API keys stay in the iOS/macOS Keychain — never in config files, never uploaded A REAL AGENT, NOT JUST A CHAT - Fa thinks out loud: watch live reasoning, tool calls, and results - Sandboxed shell, file system, git, Python, Lua, SQLite, and JavaScript - Reads, writes, and patches code; searches the web; fetches pages - Approval tiers keep you in control of every write and command MINI-APPS ON DEMAND - Ask Fa…