Privacy Policy
Last updated: March 14, 2026 — Effective for KuyTools Chrome Extension
1. Overview
KuyTools ("we", "us") operates the KuyTools Chrome Extension. This policy explains what data we collect, how we use it, and your rights regarding that data.
2. Data We Collect
The extension collects and processes the following data:
- Platform Authentication Token — Captured from your active AI music platform session to enable batch song creation. Stored locally in your browser's extension storage. Never transmitted to our servers.
- License Key — Your activation code is verified against our server (kuytools.com) to validate your subscription. We store the license key, activation date, and device identifier (a random hash, not your actual device info).
- Extension Settings — Your preferences (genre, mood, language, LLM provider selection) are stored locally in Chrome's storage API. These never leave your browser.
3. Third-Party AI Services
When you use the AI-powered lyrics and style generation features, your prompts (genre, mood, theme descriptions) are sent to the LLM provider you selected:
- Google Gemini (generativelanguage.googleapis.com)
- Anthropic Claude (api.anthropic.com)
- OpenAI (api.openai.com)
You provide your own API key for these services. We do not store, transmit, or have access to your API keys — they are stored locally in your browser only. Each provider has its own privacy policy governing how they handle your data.
4. Server Communication
The extension communicates with our server (kuytools.com) for:
- License validation and activation status checks
- Version checking for updates
- Genre/artist search and embedding queries
We do not collect browsing history, personal information, or any data beyond what is listed above.
5. Data Storage
- Local storage: Platform auth tokens, API keys, extension settings, and generated content are stored in Chrome's local extension storage on your device.
- Server storage: Only license keys, activation records, and anonymous device identifiers are stored on our server.
6. Data Sharing
We do not sell, trade, or share your personal data with any third parties. Data is only transmitted to:
- kuytools.com (our server) for license validation
- Your selected LLM provider for AI generation (using your own API key)
- Supported AI music platforms for song creation (using your own account)
7. Permissions
The extension requires the following Chrome permissions:
- activeTab, tabs, scripting — To interact with supported AI music platforms for batch song creation
- storage — To save your settings and preferences locally
- downloads — To download generated songs
- sidePanel — To display the extension UI as a side panel
- alarms — For scheduled batch processing
- webRequest — To capture platform authentication tokens from your active session
8. Data Retention & Deletion
Local data is deleted when you uninstall the extension or clear Chrome's extension data. Server-side license records are retained for subscription management. To request deletion of your server-side data, contact us at the email below.
9. Security
We implement industry-standard security measures including HMAC integrity verification, CSRF protection, rate limiting, and encrypted communications (HTTPS) for all server interactions.
10. Changes to This Policy
We may update this policy from time to time. Changes will be posted on this page with an updated revision date.
11. Contact
For questions about this privacy policy or to request data deletion, contact us at: