Yappy

AI voice agent for macOS that types what you say or takes action in your apps — free, on-device, and private.

Yappy is an AI-powered voice agent built exclusively for macOS that lets users control their computer hands-free using simple voice commands. By holding a key and speaking, Yappy either transcribes speech into text or executes tasks directly inside existing apps — filling forms, sending emails, booking tables, and more. All audio processing happens entirely on-device, ensuring complete privacy with no data leaving the Mac. Yappy learns each user's unique file structure, app layout, and workflows over time, adapting to personal routines. It also offers a public REST API, MCP server, and OpenAPI 3.1 spec for developers who want to build on top of its capabilities. Designed for Apple Silicon running macOS 13 and above, Yappy requires no account or API key to get started.