AIUsageMonitor

AI Usage Monitor

AI Usage Monitor is a compact, always-on-top Windows desktop widget for real real-time subscription usage monitoring across OpenAI Codex, Claude Code, Google Antigravity, and Cursor. It displays used quota, reset times, and provider state without requiring a browser dashboard.

Pairs with Angesn Hardware Monitor, a sibling
widget for CPU, GPU, RAM and fan monitoring — same widget shape, same appearance options, side by
side on the desktop.

Download

Download the newest automatic Windows x64 build from GitHub Releases, or download the executable directly:

- AIUsageMonitor.exe
- SHA-256 checksum

The release is a self-contained single-file application and does not require a separate .NET installation. It is currently unsigned, so Windows SmartScreen may display an Unknown publisher warning.

Features

Usage

- Shows usage windows, reset times, and provider status
- Supports Codex, Claude Code, Antigravity, and Cursor
- Refreshes manually, on a schedule, while idle, or through optional provider hooks
- Caches the last-known values between restarts

Widget

- Compact, translucent, always-on-top design
- Vertical or side-by-side provider cards
- Customisable provider visibility, text size, colours, opacity, and window position
- System-tray controls and optional automatic refresh hooks
- Optional multi-monitor taskbar widget: enable a compact usage strip independently on each taskbar, with shared provider visibility/font styling, per-monitor text/icon sizing and positioning, and hover details for status, last updated, and reset times

Under the hood

The taskbar widget is a separate top-level WPF window—not a child of explorer.exe. That isolation means a widget fault cannot hang the Windows taskbar. It monitors shell, taskbar, and display events;…