Claude Usage Monitor

Tracks claude.ai usage and displays it in a dashboard with JSON export.

What's new in version 1.4.1: * Improved the usage forecast mini-chart, with advice colored by urgency and a clearer "limit reached" state * Added hover tooltips to the chart markers so you can check the exact times behind each point * The forecast now falls back to the other window automatically when the selected one has no data yet What's new in version 1.4.0: * Added a usage forecast mini-chart in the popup that projects how usage will trend before the next reset, with a warning when you are likely to reach 100% * Switch the forecast between the 5-hour and 7-day window * When you have multiple organizations, the popup now shows them one at a time in a carousel and remembers your last selection What's new in version 1.3.1: * Click an organization card in the popup to open the visualization page with that organization already selected What's new in version 1.3.0: * Added display of per-model usage limits (such as limits for individual models like Fable and Opus) in the popup and on the visualization chart What's new in version 1.2.0: * Added a toolbar badge that shows remaining usage or time left until reset (choose what to show and which window in the settings panel) * Added a crossfade animation when switching between light and dark themes What's new in version 1.1.0: * Added notifications when the 5-hour or 7-day usage window resets (can be turned on or off per window in the settings panel) * Improved the remaining-time display to a more readable format * Organizations with no usage data are now hidden in the popup Claude Usage Monitor is a Chrome extension that helps users understand and manage their claude.ai usage. The extension periodically retrieves usage information from claude.ai while the user is logged in, stores usage snapshots locally in the browser, and displays the data in an easy-to-read dashboard. Users can check usage for each organization, view remaining usage and reset timing, switch between light and dark themes, and open a full visualization page for more detailed analysis. Key features: * Track claude.ai usage for each organization * Display 5-hour and 7-day usage windows * Display per-model usage limits (such as limits for individual models like Fable and Opus) when available * Show remaining usage, utilization rate, and reset timing * Forecast upcoming usage with a mini-chart and get an alert when you are likely to reach 100% before the reset * Automatically update usage data in the background and when opening the popup * Manually refresh usage data from the popup * Visualize historical usage with charts * Open the visualization page for a specific organization by clicking its card in the popup * Filter chart ranges by 24 hours, this week, last week, this month, last month, or all time * Change chart granularity by 1 minute, 5 minutes, 15 minutes, hourly, daily, or monthly * Show remaining usage or time left until reset on the toolbar badge * Get notified when a 5-hour or 7-day usage window resets * Export locally stored usage data as JSON * Open exported JSON files for read-only visualization * Switch between light and dark themes * Manage preferences including language, theme, and notifications through a unified settings panel This extension is designed only for monitoring and visualizing the user’s own claude.ai usage. It does not provide automation for sending messages, bypassing usage limits, modifying claude.ai behavior, or accessing unrelated websites. Usage data is stored locally in the user’s browser using Chrome storage. The extension does not sell user data, does not use the data for advertising, and does not share the data with third parties. JSON export is initiated by the user, and exported files are saved by the user for their own use. Please note that this extension relies on claude.ai internal endpoints that may change without notice. The user must be logged in to claude.ai for usage data retrieval to work.