# Introduction
Welcome to the Developer Guide. This section provides technical documentation and guides for integrating User.com features into your application.
Here you will find resources for:
- JavaScript SDK: Complete reference for the Web SDK, including installation, customer identification, event tracking, and widget management.
- E-commerce Integration: Guides for integrating e-commerce platforms and tracking purchase data (coming soon).
- Product Recommendations API: Technical documentation for implementing personalized product recommendations using the User.com prediction engine.