Win-CodexBar - Windows Port of CodexBar

A Windows port of CodexBar - the tiny menu bar app that keeps your AI provider usage limits visible.

This is an unofficial Windows port. The original CodexBar is a macOS Swift app by Peter Steinberger. This port is built with Rust + egui for native Windows support.

Features

• 15 AI Providers: Codex, Claude, Cursor, Gemini, Copilot, Antigravity, Windsurf, Zai, Kiro, Vertex AI, Augment, MiniMax, OpenCode, Kimi, Kimi K2
• System Tray Icon: Dynamic two-bar meter showing session + weekly usage
• Native Windows UI: Built with egui - no web runtime required
• Browser Cookie Extraction: Automatic extraction from Chrome, Edge, Brave, Firefox (DPAPI encrypted)
• CLI Commands: codexbar usage and codexbar cost for scripting
• Preferences Window: Enable/disable providers, set refresh intervals, manage cookies

Screenshots

Main Window

Settings

Overview

Install

Download

Download the latest release from GitHub Releases.

Build from Source

cd rust
cargo build --release
# Binary at: target/release/codexbar.exe

Usage

GUI (System Tray)

codexbar menubar

CLI

# Check usage for a provider
codexbar usage -p claude
codexbar usage -p codex
codexbar usage -p all

# Check local cost usage (from JSONL logs)
codexbar cost -p codex
codexbar cost -p claude

Providers

Provider	Auth Method	What's Tracked
Codex	OAuth / CLI	Session, Weekly, Credits
Claude	OAuth / Cookies / CLI	Session (5h), Weekly
Cursor	Browser Cookies	Plan, Usage, Billing
Gemini	OAuth (gcloud)	Quota
Copilot	GitHub Device Flow	Usage
Antigravity	Local Language Server	Usage
Windsurf	Local Config	Usage
Zai	API Token	Quota
Kiro	CLI	Monthly Credits
Vertex AI	gcloud OAuth	Cost Tracking
Augment	Browser Cookies	Credits
MiniMax	API	Usage
OpenCode	Local Config	Usage
Kimi	Browser Cookies	5-Hour Rate, Weekly
Kimi K2	API Key	Credits

First Run

1. Run codexbar menubar to start the app
2. Click Settings in the menu
3. Go to Providers tab and enable the providers you use
4. Make sure you're logged into the provider CLIs (e.g., codex, claude, gemini)

Browser Cookie Extraction

Win-CodexBar automatically extracts cookies from:

• Chrome (DPAPI + AES-256-GCM)
• Edge (DPAPI + AES-256-GCM)
• Brave (DPAPI + AES-256-GCM)
• Firefox (unencrypted SQLite)

For providers that need web authentication (Claude, Cursor, Kimi), cookies are extracted automatically when you're logged into the web interface.

Manual Cookies

If automatic extraction fails, you can add cookies manually:

1. Go to Settings → Cookies tab
2. Select the provider
3. Paste the cookie header from browser DevTools (F12 → Network → Request Headers → Cookie)

Differences from macOS Version

Feature	macOS	Windows
UI Framework	SwiftUI	egui (Rust)
System Tray	NSStatusItem	tray-icon crate
Cookie Decryption	Keychain	DPAPI
Widget	WidgetKit	Not available
Auto-update	Sparkle	Manual

Privacy

• No disk scanning: Only reads known config locations and browser cookies
• On-device only: No data sent to external servers (except provider APIs)
• Cookies are opt-in: Browser cookie extraction only happens for enabled providers

Credits

• Original CodexBar: steipete/CodexBar by Peter Steinberger (MIT)
• Inspired by: ccusage for cost tracking

License

MIT - Same as original CodexBar

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This is an unofficial Windows port. For the official macOS version, visit steipete/CodexBar.