Claude Usage Monitor shows your live Claude.ai session and weekly usage limits — with burn-rate warnings — right in your browser toolbar.
Current Session, Weekly All Models, Sonnet, and Opus — updated automatically every 5 minutes.
Tracks how fast you're consuming limits. Shows "~2h 30m left at this rate" so you can save work before a cutoff.
Desktop notifications and an in-page banner at two configurable thresholds (default 75% and 90%).
48-point sparkline chart so you can see consumption trends over the last several hours.
24-hour grid showing which hours you burn through usage fastest — plan intensive sessions accordingly.
Optional SwiftBar/xbar plugin shows your highest usage % in the menu bar at all times.
Blue → Yellow → Red as you approach your thresholds. Configurable at any level.
The burn-rate engine watches your rate of consumption and tells you exactly how much time you have left — updated in real time.
A yellow or red banner appears directly on claude.ai when you hit a threshold — so you can't miss it mid-conversation.
Built as a tool I use myself. No business model, no data collection, no backend. Your usage data never leaves your device.