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Privacy Policy — AI Cost Viewer Chrome Extension

Last Updated: March 2026

1. What This Extension Does

AI Cost Viewer is a Chrome extension with a single, narrow purpose: to display the real-time cost of OpenAI API calls directly on ChatGPT (chat.openai.com) and OpenAI Playground (platform.openai.com/playground) pages.

When a response is generated, the extension reads the token usage metadata (model name, input token count, output token count) from the API response, calculates the cost using a built-in pricing table, and displays it as an overlay on the page — entirely within your browser.

2. Data We Do NOT Collect

AI Cost Viewer does not collect, transmit, store, or share any of the following:

• Your name, email address, or any personally identifiable information
• The content of your messages or conversations
• Your OpenAI API key or any credentials
• Your browsing history or visited URLs (outside openai.com)
• Your location or IP address
• Financial or payment information
• Any data from other tabs, windows, or websites

3. What the Extension Reads (Locally Only)

The extension reads only the following from completed OpenAI API responses:

• Model name — e.g., gpt-4o, o3
• Input token count — to calculate input cost
• Output token count — to calculate output cost

This data is used exclusively to calculate and display the cost of each API call. It is never transmitted to any server — not ours, not anyone else's. All processing happens locally in your browser.

4. Local Storage

• Session storage: Running cost totals are kept in browser session storage only and are automatically deleted when you close the tab.
• Extension local storage: Your overlay preferences (position, theme) are saved to Chrome's local extension storage on your device. This data never leaves your device.

5. Permissions Explained

5.1 storage

Purpose: To remember your overlay display preferences (position and theme) between browser sessions. No usage data, token counts, or cost history is ever written to persistent storage.

5.2 activeTab

Purpose: To inject the cost overlay UI into the currently active ChatGPT or OpenAI Playground tab when the user clicks the extension icon. The extension only activates on openai.com pages and only when explicitly triggered by the user.

5.3 Host Permission (*://*.openai.com/*)

Purpose: Required for two specific reasons:

• To inject the overlay widget into ChatGPT and Playground page DOM
• To detect completed API responses and extract token usage metadata

The extension does not access any website other than openai.com. No data from openai.com is transmitted to any external server.

6. Remote Code

AI Cost Viewer does not use remote code. All JavaScript is fully bundled inside the extension package. No external scripts are loaded, no CDN resources are fetched, and no eval() or dynamic code execution is used. The extension is entirely self-contained.

7. Third-Party Services

AI Cost Viewer integrates with no third-party services. There are no analytics SDKs, no advertising networks, no crash reporters, and no tracking tools included in the extension.

8. Data Security

Because we collect no data and operate no servers, there is no data to secure or breach. All extension data is stored locally on your device and is protected by your browser's own security model. Uninstalling the extension permanently removes all locally stored preferences.

9. Children's Privacy

AI Cost Viewer does not collect any personal data from any user, including children. Since no personal information is collected, children's privacy is inherently protected.

10. Your Rights and Control

Since we collect no personal data, there is nothing stored on our side to access, correct, or delete. You have full control over all extension data:

• Reset session costs at any time using the Reset button in the popup
• Clear all preferences by going to chrome://extensions → AI Cost Viewer → "Clear storage"
• Remove all data permanently by uninstalling the extension

11. GDPR & CCPA Compliance

AI Cost Viewer is compliant with GDPR (Europe) and CCPA (California) by design — because it collects no personal data whatsoever. No consent banners, data processing agreements, or opt-out mechanisms are required.

12. Changes to This Privacy Policy

We may update this Privacy Policy if we add new features that affect data handling. Any changes will be reflected in the Chrome Web Store listing and in the updated "Last Updated" date above. Continued use of the extension after changes constitutes acceptance of the updated policy.

13. Contact Us

Questions about this Privacy Policy or AI Cost Viewer?

Credible Arena (OPC) Private Limited
Email: info@crediblearena.com
GitHub: github.com/crediblearena/ai-costguard
Phone: +91 8950 281 868
Address: B-11, Greater Kailash Enclave - 1, New Delhi, 110048, India

14. Summary