A macOS menu bar app that shows your Claude.ai usage limits in real-time. Know exactly when you're burning through tokens faster than your rate limit resets — so you can see if you'll end up paying for overages before your window refreshes.
- Live usage percentage in your menu bar
- Reset countdown — see exactly when your limits refresh
- Burn rate indicator — know if you're using tokens faster than the clock is ticking
- Over-limit warning — clear indicator when you've crossed 100% and are on paid usage
- Multi-org support — switch between organizations
- Secure — session key stored locally, API calls via embedded browser engine
☁ 49% 3h44m 🟡1.2x
☁ 49%— current usage percentage3h44m— time until rate limit resets🟡1.2x— burn rate (1.2x = using 20% faster than even pacing)
| Color | Meaning |
|---|---|
| 🟢 | Under 0.8x — well within budget |
| 🟡 | 0.8x–1.0x — approaching even pace |
| 🟠 | 1.0x–1.5x — burning faster than time passes |
| 🔴 | Over 1.5x — will hit limit before reset |
- macOS 14.0 (Sonoma) or later
- XcodeGen (for generating Xcode project)
- Xcode 15+
# Install XcodeGen if needed
brew install xcodegen
# Generate Xcode project
xcodegen generate
# Open in Xcode
open ClaudeLimitChecker.xcodeproj
# Or build from command line
xcodebuild -project ClaudeLimitChecker.xcodeproj -scheme ClaudeLimitChecker -configuration Release build- Build and run the app
- Click the
☁ --icon in your menu bar - Open Settings (⌘,)
- Add your Claude.ai session key:
- Go to claude.ai in your browser
- Open DevTools (F12 or ⌘⌥I)
- Go to Application → Cookies →
https://claude.ai - Copy the value of
sessionKey - Paste it in the app settings
| Setting | Default | Description |
|---|---|---|
| Refresh interval | 60s | How often to poll Claude.ai for usage data |
| Show burn rate | On | Display burn rate multiplier in menu bar |
| Rate limit window | 5h | Duration of one rate limit cycle (adjust for your plan) |
The burn rate compares your actual token consumption speed against the "even pacing" speed — i.e., how fast you'd use tokens if you spread them perfectly evenly across the rate limit window.
- 1.0x = exactly on pace
- < 1.0x = you'll have budget left when the window resets
- > 1.0x = at this rate, you'll exceed 100% before the window resets
The app tracks your usage over time and calculates the trend. It needs a few data points before showing an accurate burn rate.
- Your session key is stored locally in the macOS Keychain
- The app only communicates with
api.claude.ai - No data is sent to any third party
- No analytics or telemetry
MIT