Show HN: Cai – Local AI Action Layer for macOS (Free, MIT, MLX)

Category: cli-tool

Tags: macos, local-ai, productivity, automation, swift

Score: 7.3/10 (Innovation: 7, Technical: 7, Documentation: 8, Utility: 7)

Cai is a macOS utility that provides a global hotkey (⌥C) to run AI prompts, scripts, and integrations on selected text or images entirely locally, without app switching. It's interesting because it combines native macOS integration, local MLX inference, smart content detection, and extensibility into a privacy-focused productivity tool.

Target audience: macos users, developers, power users, productivity enthusiasts

Repository: https://getcai.app/ · Swift · MIT · 25 stars

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