BurnRate

Always-on-top desktop widget showing your AI subscription usage at a glance.

What it does

BurnRate sits on top of your windows as a compact pill, showing how much of your Claude subscription you've used. Click to expand for detailed breakdowns with progress bars and reset timers.

Currently supported: Claude.ai (Pro/Max subscription usage)

Features

• Compact always-on-top pill with live usage percentages
• Expandable detail view with progress bars and reset countdowns
• 5-hour window, 7-day window, and extra credits tracking (€)
• Dark/light theme toggle
• Auto-refresh every 60 seconds (pauses when hidden)
• System tray with hide/show/refresh/quit
• Autostart with Windows
• Drag handle on compact pill, titlebar drag on expanded view
• Session key stays in the Rust backend (never exposed to the webview)
• Org ID auto-detected from API

Install

Download burnrate.exe from the latest release and run it. No installer needed.

Requirements: Windows 10/11 with WebView2 (pre-installed on modern Windows)

Setup

1. Run burnrate.exe
2. Open claude.ai in your browser
3. Press F12 → Application → Cookies → copy the sessionKey value
4. Paste it into BurnRate's Settings
5. Org ID is auto-detected — click Save

That's it. BurnRate will refresh every 60 seconds.

Build from source

Prerequisites

• Rust (1.70+)
• Node.js (20+)
• Windows: Microsoft C++ Build Tools

Steps

git clone https://github.com/offbyone1/BurnRate.git
cd BurnRate
npm install
npx tauri build

The binary will be at src-tauri/target/release/burnrate.exe.

Development

npm install
npx tauri dev

How it works

1. BurnRate calls claude.ai/api/organizations/{org_id}/usage using your session cookie
2. The response includes utilization percentages for different rate limit windows
3. Data refreshes every 60 seconds
4. All credentials are stored locally — no external servers, no telemetry

License

MIT - offbyone1