Atticus: a free voice assistant for Mac that runs on your Claude plan
Atticus is a free, open-source app that lets you hold Control, Option and Space, speak a request, and have your Mac open apps, arrange windows, search files by their contents or draft an email reply. The developer says it never sends email on its own and asks before anything deletes, sends, buys or changes a file. Its optional Meeting Copilot transcribes calls and saves transcripts on your Mac. These are the developer's descriptions, not results Byte has tested.
- For
- A Mac user on macOS 26 or later who already pays for Claude Pro or Max and wants hands-free help with everyday computer tasks without adding another subscription.
- Cost
- Atticus itself is free and MIT-licensed open source. It requires a paid Claude Pro or Max plan with Claude Code, or a Devin plan through the Devin CLI. The developer estimates each AI request uses about 0.18 cents of plan usage (roughly 550 requests per $1 at API list rates). Simple commands like opening apps skip the AI and cost nothing.
- Access
- Requires macOS 26 or later, a paid Claude Pro or Max plan with Claude Code (or a signed-in Devin CLI), Apple's command line tools, and Accessibility permission. Installation means pasting a command into Terminal, the Mac's text-based command window. By default, Claude reads meeting transcripts to write summaries, and the app sends one anonymous daily ID to PostHog, an analytics service. Both can be turned off in Settings.
Your moveIf your Mac runs macOS 26 and you already pay for Claude Pro or Max, read the GitHub page's install, safety and data-sharing sections, then decide whether to switch off AI meeting summaries and usage counting before trying it.
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