ClaudeWatch

Experimental / Alpha — This is a personal project I built for my own workflow. It works for me but is rough around the edges. macOS only. Contributions and feedback welcome, but expect breaking changes.

A macOS menubar app that shows your Claude Code rate limit usage and active sessions at a glance.

What it shows

Menubar (always visible):

• Rate limit usage with smart burn-rate color indicator
• Countdown to 5-hour window reset
• Claude system status alerts (from status.anthropic.com)

Dropdown (click to expand):

• 5-hour and 7-day rate limit details
• Active sessions grouped by project with T3 thread titles
• Per-session details (model, context, cost, tokens)
• Live Claude system status (clickable → status.anthropic.com)

Supported clients

• Claude Code CLI — full status via statusline hook
• Claude Code VSCode extension — session detection
• T3 Code — thread titles and session grouping via T3's local database

Other Claude clients (claude.ai web, Claude desktop app) are not tracked — they don't go through Claude Code.

Limitations

• macOS only — uses native menubar via PyObjC/rumps
• Claude Max subscription — rate limit data comes from the OAuth usage API, which requires a Claude Max account
• Experimental — built for personal use, lightly tested, expect bugs
• ~55MB RAM — Python + PyObjC baseline; a Swift rewrite would be much lighter

Install

pip

pip install claudewatch

uv

uv tool install claudewatch

From source

git clone https://github.com/hendrickmelo/claudewatch.git
cd claudewatch
uv sync
uv run claudewatch

Setup

After installing, set up the statusline hook so Claude Code sends status data:

# Install the hook (auto-detects existing statusline)
claudewatch install

If you already have a custom statusline, chain it:

claudewatch install --chain ~/.claude/statusline.sh

Run

claudewatch

The app appears in your macOS menubar.

How it works

ClaudeWatch pulls data from multiple sources:

1. OAuth usage API — polled every minute for account-wide rate limits (5-hour and 7-day)
2. Statusline hook — writes per-session status files on each Claude Code interaction (context %, cost, lines changed)
3. Transcript files — reads ~/.claude/projects/ JSONL files for session activity and token counts
4. T3 SQLite database — reads ~/.t3/userdata/state.sqlite for thread titles and session mapping
5. Status page — polls status.anthropic.com for incident alerts

Rate limits are account-wide, so data from any session reflects your total usage across all Claude Code clients.

Uninstall

claudewatch uninstall          # remove the statusline hook
pip uninstall claudewatch      # or: uv tool uninstall claudewatch

Requirements

• macOS
• Python 3.10+
• Claude Code installed
• jq (for the statusline hook)