onWatch is a free, open-source CLI tool that tracks Synthetic, Z.ai, and Anthropic (Claude Code) API quota usage in real time.
Cost / License
- Free
- Open Source (GPL-3.0)
Platforms
- Mac
- Linux
- Windows
- Docker




AIQuotaBar is described as 'See your Claude.ai and ChatGPT usage limits live in your macOS menu bar — zero setup, reads browser cookies automatically' and is an app in the office & productivity category. There are six alternatives to AIQuotaBar for Mac, Windows, Linux and Docker. The best AIQuotaBar alternative is onWatch, which is both free and Open Source. Other great apps like AIQuotaBar are Claude Usage, Usage for claude, Usage4Claude and ClaudeCodeMonitor.
onWatch is a free, open-source CLI tool that tracks Synthetic, Z.ai, and Anthropic (Claude Code) API quota usage in real time.




A lightweight macOS menubar app that displays your Claude Code usage limits at a glance.

Monitor your Claude subscription usage from your menu bar. Track session & weekly limits with beautiful widgets. Never hit limits unexpectedly.






A lightweight macOS menu bar application that monitors and manages Claude Code instances in real-time. Keep track of multiple Claude sessions, their resource usage, and running processes - all from your menu bar.
