WhatsMyUsage

WhatsMyUsage is a macOS menu-bar utility for people whose work runs on AI subscriptions. It shows how much of each usage limit is left, when it resets, and whether the current pace will run out early — with dedicated integrations for Claude, Codex, Cursor, and Grok Build, and 65 more providers connected through the login your tool keeps on your Mac, a browser session, or an API key.

The app records how fast each limit drains, warns 15, 30 or 60 minutes before it runs out, flags when paid extra usage starts, and keeps 30 days of local history. Credentials and usage data stay on the Mac: requests go straight to each vendor's own usage endpoint and nothing passes through a WhatsMyUsage server. It is made by independent developer Dominique Rosario in Portugal, sold as a one-time purchase via Polar, and is also available on Setapp.