Why Codex usage is easy to lose track of
Codex gives you an allowance over a weekly window, which is long enough that you stop thinking about it. You work normally for days, then discover on a Thursday afternoon that the week is spent, with three days still to go before it refills.
The reset also does not land at a tidy time. It runs on a rolling clock from when the window opened, so "sometime Friday" is usually as precise as anyone can tell you without looking it up.
What Pane shows you
Weekly and session bars. How much is left as a percentage, with a bar you can read without reading.
The real reset time. "Resets in 6d 17h" rather than a vague day of the week.
Pace warnings. Pane watches how fast you are spending inside the window and flags it when your current rate will empty the allowance before it refills, optionally as a Windows notification.
Reset credits, with expiry. Banked credits are listed with the exact date each one dies, and you can redeem one with a single click from the card.
Local spend. Your Codex request logs, priced with live per-model rates, in the same donut as the rest of your tools.
Reset credits are the part people miss
Reset credits are genuinely useful and genuinely easy to waste, because they sit somewhere you never look and they expire quietly. Pane surfaces them on the Codex card itself, with the expiry next to each one, so redeeming becomes a decision rather than an accident.
How it connects to Codex
The Codex CLI stores its login at %USERPROFILE%\.codex\auth.json. Pane reads that file and calls the same usage endpoint the official apps use, so there is no API key to paste and no account to create. The token only ever goes to OpenAI, never through any server of ours, and expired tokens are refreshed and written back so your CLI stays signed in.
Setting it up
- Install Pane with
winget install paneor the installer from the releases page. - Click the tray icon. If the Codex CLI is signed in, the card is already live.
- Star the weekly metric to pin it into the tray as a live number next to your clock.
Track the rest of your stack too
Codex is rarely the only subscription running. Pane covers 21 providers in one popover, so you are comparing one picture instead of six dashboards.
Questions
What is a Codex AI tracker?
A Codex AI tracker shows your weekly Codex limit, the exact reset time, and any banked reset credits. Pane is a free Codex usage tracker for Windows that sits in the tray next to Claude, Cursor and the rest.
How do I check my Codex usage?
Install Pane. It reads the auth file the Codex CLI already keeps on your PC, calls the same usage endpoint the ChatGPT apps use, and shows your remaining weekly allowance in the tray with its exact reset time.
What are Codex reset credits?
When you run out early, you can be granted credits that restore your allowance. They expire, and it is easy to forget you have them. Pane lists each banked credit with its exact expiry and lets you redeem one with a single click.
Does tracking Codex usage need an API key?
No. If you are signed into the Codex CLI, Pane reads the token it already stores in your user folder. The token is only ever sent to OpenAI's own endpoint.
Can I track Codex and Claude at the same time?
Yes, that is the point of Pane. Codex, Claude, Cursor, Copilot and the rest of the 21 providers appear as cards in the same tray popover, each with its own limits and reset timers.