> ## Documentation Index
> Fetch the complete documentation index at: https://docs.lytix.co/llms.txt
> Use this file to discover all available pages before exploring further.

# User Overview

> How to capture user level data in lytix

Lytix helps team understand how individual users interact with their product. View high level overview of user activity, and filter (along with metadata and other attributes) to get more granular insights.

![User Overview](https://lytix-cdn.s3.amazonaws.com/documentationAssets/customerUsers/userOverview.gif)

# Get Started

To get started, you'll need to start passing a `userId` header when making requests via lytix.

Click on the integration you'd like to use on the sidebar under **Quickstart** for the most up to date instructions. Here are some common ones:

* **[OpenAI](/Quickstart/openai-integration#userid)**
* **[Gemini](/Quickstart/gemini-integration#optional-fields)**