Usage Monitor for Claude

About

See your Claude.ai usage at a glance — right on your browser toolbar.

Claude Monitor displays your current usage percentage as a colored badge on the extension icon, just like Gmail shows unread email count. No more opening claude.ai/settings/usage every few hours to check if you're about to hit your limit.

━━━ FEATURES ━━━

🔢 USAGE BADGE
See your current usage % directly on the toolbar icon. The badge color changes based on how close you are to your limit:
🟢 Green — usage under 70% (safe)
🟡 Yellow — usage at 70%+ (warning)
🔴 Red — usage at 90%+ (critical)

📊 DETAILED BREAKDOWN
Click the icon to see all your usage windows in one popup:
- 5-Hour Session usage
- Weekly (All Models)
- Weekly (Sonnet / Opus)
- Reset countdown for each window
- Plan detection (Free / Pro / Max / Team / Enterprise)

🚨 ANTHROPIC SERVICE STATUS
Live status from status.claude.com — see at a glance whether Claude.ai, Claude API, and Claude Code are operational. Get notified instantly when a new incident is reported.

🔔 SMART NOTIFICATIONS
- Threshold alerts when usage crosses your warn or critical level
- Incident alerts when Anthropic reports a new outage
- Configurable on/off

⏱️ AUTO-REFRESH
Updates every minute by default (configurable 1–60 minutes). Always shows current data without you having to refresh manually.

🔐 PRIVACY & SECURITY
- Uses your existing Claude.ai browser session — no API keys, no passwords, no cookies to copy
- Only communicates with claude.ai and status.claude.com
- No data ever sent to any third-party server
- No analytics, no tracking, no ads

⚙️ CUSTOMIZABLE
- Set your own warn / critical thresholds
- Choose refresh interval
- Toggle threshold and incident notifications independently
- Light/dark mode follows your system preference

━━━ HOW IT WORKS ━━━

1. Install the extension
2. Log in to claude.ai (if you aren't already)
3. Click the icon → "Open Usage Page" once so the extension can detect your plan's endpoint
4. That's it — the badge updates automatically every minute

━━━ SUPPORTED PLANS ━━━

Works with all Claude.ai plans: Free, Pro, Max (1x/5x/20x), Team, and Enterprise.

━━━ PERMISSIONS EXPLAINED ━━━

- storage — save your settings locally
- alarms — schedule the auto-refresh timer
- notifications — alert you on threshold/incident events
- claude.ai access — read your usage data (using your existing browser session)
- status.claude.com access — read public service status

The extension runs entirely on your machine. Source-available and verifiable.

━━━

Disclaimer: Claude Monitor is an unofficial tool not affiliated with or endorsed by Anthropic. "Claude" and "Anthropic" are trademarks of Anthropic, PBC.