LLM-O-Meter

A system tray application for Windows and macOS that monitors your quota usage in real-time.

Designed for Claude Code and Google AntiGravity users, LLM-O-Meter sits in your system tray and gives you at-a-glance visibility into your model usage quotas — before you hit a wall mid-task.

Features

• Live quota monitoring — Polls the Claude API at a configurable interval (10–600 seconds) and updates tray icons instantly
• AntiGravity support — Detects a running AntiGravity language server and shows per-model quota alongside Claude quotas
• Pie-chart tray icons — Color-coded icons show utilization at a glance: green, amber, and red as you approach limits
• Detailed popup — Click any tray icon to open a draggable popup with progress bars, reset times, and rate estimates
• Usage rate tracking — Calculates how fast you're burning quota (% per hour) and predicts when it will be exhausted (experimental, enable it in settings window)
• Desktop notifications — Alerts you when utilization crosses a configurable threshold, when quota is exhausted, and when it renews
• Automatic credential detection — Watches ~/.claude/.credentials.json and starts monitoring automatically when Claude Code credentials appear

Screenshots

Windows

MacOS

Requirements

Component	Version
Qt	6.10.1
Compiler	MinGW 13.1.0 64-bit (Windows)
CMake	3.16 or later
Ninja	any recent version

All of the above are installed by the Qt Online Installer. The default Qt install paths are expected:

• Qt: C:\Qt\6.10.1\mingw_64
• MinGW: C:\Qt\Tools\mingw1310_64
• Ninja: C:\Qt\Tools\Ninja

Building on Windows

Run the provided batch script from the project root:

build_win.bat

The finished, distributable application is in dist_win/ when the script completes successfully.

Building on macOS

Requires create-dmg for packaging:

brew install create-dmg

Run the provided shell script from the project root:

./build_mac

Output goes to build_mac/, distribution to dist_mac/. The script also produces dist_mac/LLM-O-Meter.dmg ready for distribution.

Configuration

Settings are stored in the OS-native settings store (registry on Windows, plist on macOS) and are accessible via right-click tray icon → Settings:

Authentication

LLM-O-Meter reads the OAuth token that Claude Code writes to ~/.claude/.credentials.json. If you are already using Claude Code, no manual configuration is needed — the app detects the file automatically and starts monitoring.

You can also enter a token manually in the Settings dialog.

About

Made by Brekel - brekel.com