Claude Usage Counter (Modular, No API Key) by Humberto
Counts messages/text/file/image tokens with a 5h window. Modular code layout.
Extension Metadata
About this extension
📊 Smart Usage Tracking for Claude.ai
Keep track of your Claude conversations with intelligent counting that respects plan limits:
• Message & Token Counting: Tracks messages and estimates text tokens using configurable algorithms (~1 token/4 chars or ~1.3 tokens/word)
• 5-Hour Reset Window: Auto-resets counters every 5 hours to match Claude's limits
• Plan-Aware Limits: Supports Free (9), Pro (45), Max 5× (225), and Max 20× (900) with remaining count display
• File & Image Support: Counts attachment tokens with customizable rates for PDFs, documents, and images by resolution
• Real-Time Draft Tracking: See estimated tokens as you type
• Privacy First: All data stays local - no API keys, no external servers, no data collection
Perfect for:
- Power users monitoring usage patterns
- Teams managing message budgets
- Anyone wanting transparent token estimation
Permissions Explained:
- Storage: Save your settings and usage data locally
- Claude.ai access: Count messages and attachments on the site
Works entirely offline after installation. Your conversation data never leaves your browser.
Keep track of your Claude conversations with intelligent counting that respects plan limits:
• Message & Token Counting: Tracks messages and estimates text tokens using configurable algorithms (~1 token/4 chars or ~1.3 tokens/word)
• 5-Hour Reset Window: Auto-resets counters every 5 hours to match Claude's limits
• Plan-Aware Limits: Supports Free (9), Pro (45), Max 5× (225), and Max 20× (900) with remaining count display
• File & Image Support: Counts attachment tokens with customizable rates for PDFs, documents, and images by resolution
• Real-Time Draft Tracking: See estimated tokens as you type
• Privacy First: All data stays local - no API keys, no external servers, no data collection
Perfect for:
- Power users monitoring usage patterns
- Teams managing message budgets
- Anyone wanting transparent token estimation
Permissions Explained:
- Storage: Save your settings and usage data locally
- Claude.ai access: Count messages and attachments on the site
Works entirely offline after installation. Your conversation data never leaves your browser.
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Permissions and dataLearn more
Required permissions:
- Access your data for all websites
More information
- Add-on Links
- Version
- 0.5.0
- Size
- 27.45 KB
- Last updated
- 2 months ago (Aug 21, 2025)
- Related Categories
- License
- MIT License
- Privacy Policy
- Read the privacy policy for this add-on
- Version History
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