Privacy Policy

What Claude Usage Deck Does

Claude Usage Deck is a Chrome extension that reads your usage statistics from the Claude.ai API and displays them as a badge icon and popup in your browser toolbar. It helps you monitor session, weekly, and Sonnet usage limits without navigating to the Settings page.

Data Collection

Claude Usage Deck does not collect, store, or transmit any data to third parties.

• No analytics — no tracking, no telemetry, no usage statistics about you
• No external servers — the extension only communicates with claude.ai
• No accounts — no sign-up, no authentication beyond your existing Claude.ai session

Data Handling

Every 5 minutes, the extension fetches your usage data from the Claude.ai API:

• Session utilization percentage and reset time
• Weekly all-models utilization percentage and reset time
• Weekly Sonnet utilization percentage and reset time

This data is fetched using your existing Claude.ai browser cookies (via the host_permissions grant for claude.ai). The extension developer has no access to your cookies, your usage data, or your Claude.ai account.

Data Storage

The extension stores the following in Chrome's built-in chrome.storage.local:

• Cached usage data (utilization percentages and reset times)
• Your organization ID (fetched once from Claude.ai)
• Your badge metric preference (Session / Weekly / Sonnet)
• Timestamp of the last successful data fetch

All data stays in your browser. Nothing is synced, uploaded, or shared.

Permissions

• alarms — to schedule polling every 5 minutes so usage data stays current
• storage — to cache usage data and your badge preference locally in the browser
• host_permissions (claude.ai) — to read usage data from the Claude.ai API using your existing browser cookies. This is the only network request the extension makes.

Network Requests

The extension makes exactly two types of API calls, both to claude.ai:

• GET /api/organizations — once on first install, to discover your organization ID
• GET /api/organizations/{org_id}/usage — every 5 minutes, to fetch current usage data

No other network requests are made. No data is sent anywhere.