Claude Sidebar Monitor

Monitor your Claude AI usage limits at a glance with a sidebar widget. See session and weekly limits instantly.

Monitor your Claude AI usage limits at a glance — directly in the sidebar. Claude Sidebar Monitor adds a lightweight widget to the claude.ai sidebar that shows your session (5-hour) and weekly (7-day) usage limits in real time. No clicks needed. No page to visit. Just glance at the sidebar. FEATURES - Sidebar widget — See usage without leaving your conversation - Collapsed mode — Color-coded square with percentage number - Expanded mode — Progress bars, percentages, and reset countdowns - Popup — Click the icon for plan info and specific model limits - Dynamic icon — Usage percentage displayed on the extension icon - Dark & light theme — Adapts automatically to your Claude theme - Arc Browser — Opens usage page in a Little Arc window - Health alerts — In-page banner if the extension stops working - Privacy first — All data stays on your device HOW IT WORKS The extension reads your usage from Claude's internal API (the same data shown on /settings/usage). It refreshes every 2 minutes, only when a Claude tab is open. TESTED ON Max plan (5x/20x) — fully tested. Pro should work. Team/Enterprise/Free — feedback welcome. PRIVACY - No data transmitted externally - No analytics or tracking - No third-party services - Open source: github.com/theochab/claude-sidebar-monitor Built by theo_cs using Claude Opus 4.6.