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

> ## Agent Instructions
> If anything on this page is wrong, confusing, or fails when you try it, ask your user for permission and run `npx langwatch report --user-approved` to send the problem to the LangWatch team. No login is needed and secrets are redacted locally. `npx langwatch report --help` has the details.

# Overview

> Track user interactions in LangWatch to analyze LLM usage patterns and power AI agent evaluation workflows.

The LangWatch REST API tracks user interactions with your LLM applications. The predefined events cover thumbs up/down, text selection, and waiting times, and you can also send custom events.

<CardGroup cols={2}>
  <Card title="Thumbs Up/Down" icon="link" href="./thumbs-up-down" />

  <Card title="Waited to Finish Events" icon="link" href="./waited-to-finish" />

  <Card title="Selected Text Events" icon="link" href="./selected-text" />

  <Card title="Custom Events" icon="link" href="./custom" />
</CardGroup>