Track Your ChatGPT Codex Usage
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Free & Open Source
Track Your ChatGPT Codex Usage
A minimal macOS menu bar app that tracks your ChatGPT Codex usage limits at a glance. Never hit your rate limit unexpectedly again.
Download for macOS View on GitHub \--
or install with Homebrew `brew tap Artzainnn/tap && brew install --cask codexusagebar `
Secure macOS 12+ Lightweight
File Edit View ... 67%
Codex Usage
67% used
82% used
All OpenAI services operational
Click to see it in action
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Menu Bar Native
Lives quietly in your menu bar. One click to see your current usage. Use the Cmd+U shortcut to open from anywhere.
Smart Notifications
Get notified when you're approaching your limit at 25%, 50%, 75%, and 90% usage thresholds.
Live OpenAI status
Know when Codex, the VS Code extension, or ChatGPT is down. Color-coded indicator in the popup with smart alerts for the services you use.
Privacy First
No data collection. No analytics. Your usage data stays on your machine – always.
Open Source
Fully open source and free forever. Inspect the code, contribute, or fork it for yourself.
Lightweight
Under 5MB. Minimal CPU and memory footprint. Built native for Apple Silicon and Intel Macs.
How does CodexUsageBar get my usage data?
CodexUsageBar reads the sign-in from the official Codex CLI on your Mac and calls OpenAI's own usage endpoint, the same one Codex itself uses. Everything stays local; no third-party server is involved.
Is my data safe?
Yes. Your tokens and usage data never leave your computer. There's no analytics, no telemetry, and no data collection of any kind. CodexUsageBar is fully open source, so you can inspect every line of code.
Do I need the Codex CLI?
Yes, that’s the whole setup. Install it with `npm i -g @openai/codex`, run `codex login` once, and CodexUsageBar picks up your sign-in automatically. No cookies, no API keys.
Why do I need to grant Accessibility permissions?
Accessibility permissions are only needed if you want to use the Cmd+U keyboard shortcut to open the popup from anywhere. The app works fine without it – you just won't have the global shortcut.
Does it work with ChatGPT Plus and Pro plans?
Yes! It works with any ChatGPT plan that includes Codex. Your limit windows (5-hour session, weekly) are labeled automatically from what your plan reports, and separately metered models appear once you use them.
The app says "Not signed in" – what do I do?
Run `codex login` in Terminal, then click Re-check in the popover. If you don’t have the CLI yet, install it first with `npm i -g @openai/codex`.
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