FuelBar
Usage
Meter
Every AI coding limit,
on the edge of your screen.
For Mac and Windows.
Reads the limits of the tools you already use
- Claude
- Codex
- Cursor
- Copilot
- Freebuff
- Antigravity
How it works
A glance tells you how much is left.
It finds your tools on its own. Only the ones you are signed in to on this PC appear, and there is nothing you have to set up.
- 01
At rest
A slim pill with one ring per tool, showing its main limit. Rings go green, yellow, orange, then red as you use more, and pulse above 90%.
- 02
On hover
It opens to every limit window with a percentage. Hover a ring for bars, how much is left, and when it resets.
- 03
Drag it
Move it along an edge or onto the left, top or right one. On top it becomes a row of rings. It remembers where you left it.
- 04
Click to refresh
Numbers also refresh in the background and after your PC wakes from sleep.
- 05
Settings
Show, hide and reorder tools, connect one that is not signed in, pick the edge, and resize the pill from 70% to 160%.
- 06
Nothing extra to install
On Windows it uses PowerShell, WPF and the .NET Framework that ship with the system. On a Mac it is a single app.
What it shows
Six tools, one pill.
Claude
5-hour session and weekly limits, plus weekly Opus and Sonnet when your plan has them.
The Claude desktop app, with nothing to set up. Or your Claude Code login.
Codex
5-hour and weekly limits on a ChatGPT plan.
The Codex app or command-line login (sign in with ChatGPT).
Cursor
Included usage for the billing month, Auto and named-model usage, and on-demand spend.
The Cursor app's own login.
Copilot
Monthly premium requests, plus chat and completion limits on the free plan.
Your GitHub account: press Connect and paste a one-time code on github.com.
Freebuff
Daily free sessions and daily Freebucks.
The Freebuff app or command-line login.
Antigravity
Gemini and Claude/GPT model pools: 5-hour and weekly limits.
The Antigravity app, read locally. Keep it open for live numbers.
Download
Pick your system, about a minute.
One payment gets you the Windows app (10 or 11) and the Mac app (macOS 14 or newer). You pay once and download right after. To update later, come back here; to remove it on Windows, run Uninstall.cmd.
Already paid? Get your download again
Enter the payment ID from your Razorpay receipt (it starts with pay_).
On Windows (10 or 11)
- 01
Pay and download
After paying you land on a page with FuelBar-Windows.zip. It is small: the app is a single script.
- 02
Unzip
Put the folder somewhere it can stay. The app runs from that folder.
- 03
Run Install.cmd
Double-click it. It builds the app, adds Desktop and Start menu shortcuts, starts the pill, and opens it whenever you sign in or unlock your PC. Windows may ask you to confirm first.
On a Mac (macOS 14 or newer)
- 01
Pay and download
After paying you land on a page with FuelBar-Mac.zip.
- 02
Unzip and move
Drag FuelBar to Applications.
- 03
Open it
Right-click the app and choose Open the first time. It then sits on the edge of your screen.
Help
Can't sign in, or numbers not updating?
FuelBar has no account of its own. It reads the sign-in each tool already keeps on your PC, so most problems are fixed by opening that tool. If these answers don't solve it, contact me and I will help.
Contact
Aswin D G
Tell me which tool it is and what the pill or Settings says. Attaching log.txt (see below) helps a lot.
Claude shows old numbers, or Settings says "Sign in inside the Claude app"
You do not need to sign out and in again. When Claude Code is not signed in, FuelBar reads the numbers the Claude desktop app records, and the app only records them while it is open and in use. Press Connect next to Claude to open the app, leave it open for a few minutes, then right-click the pill and choose Refresh now. For live numbers that do not depend on the app, sign in to Claude Code once (Connect opens the sign-in for you when it is installed).
A tool is missing from the pill
Only tools you are signed in to on this PC appear. Open Settings (the small gear beside the pill) and check that the tool's switch is on. If it shows "Not connected yet", press Connect, sign in in the app that opens, then wait a minute.
It says my sign-in has expired (Codex, Cursor, Freebuff)
Open that tool's own app once and use it for a moment. It renews its own sign-in, and FuelBar picks the new one up within a few minutes. Meanwhile the last numbers stay on screen, marked as old, with the time they were read.
Copilot asks me to sign in to GitHub
Press Connect next to Copilot. A one-time code appears in Settings and is copied for you. Paste it on github.com when the page opens and approve. No terminal needed. If the GitHub account has no Copilot plan, Copilot is hidden.
Antigravity says to open it
Antigravity has no public usage service, so FuelBar asks the Antigravity app running on your PC. Keep Antigravity (or its IDE) open. If it says the request was not accepted, restart Antigravity.
It says "Busy right now" or "Couldn't refresh"
The tool's service limits how often it can be asked, or your connection dropped. Nothing is wrong with your sign-in. The last numbers stay on screen and it tries again by itself every few minutes, and after your PC wakes from sleep. You can also right-click the pill and choose Refresh now.
The Connect button opens an app but nothing changes
Sign in inside the app that opened, then give it a minute. FuelBar checks again every 20 seconds for three minutes after you press Connect. If the app was already signed in, just leave it open.
Where do I find the log to send you?
Right-click the pill and choose Open log folder, then send log.txt. It lists, per tool, what state it is in and why, and never contains your sign-in details.
Privacy
Your logins stay yours. Tokens are read from your own profile folder and sent only to each tool's own service. FuelBar never stores them, and it has no server of its own.