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

# Introduction

> Add a social-intelligence layer to your AI application.

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</video>

## See Interhuman in action

Understand engagement, hesitation, frustration, and other [observable cues](/explanations/social-signals) across any interaction. Interhuman captures behavioral patterns and returns structured outputs your application can use to adapt responses: engagement state, social signals, and conversation quality metrics.

## Quickstart

Start analyzing multimodal context in minutes.

<Note>
  You'll need an API key before you begin. Learn more in the [API key guide](/how-to/get-api-key).
</Note>

<Columns cols={2}>
  <Card title="Video Analysis" icon="video" href="/getting-started/video-upload-quickstart">
    Upload a video through one request and get engagement state, social signals, and quality metrics your application can use immediately.
  </Card>

  <Card title="Stream analysis" icon="bolt" href="/getting-started/stream-analyze-quickstart">
    Stream from your camera with MediaRecorder over WebSocket, or send file segments, and receive typed events for each chunk.
  </Card>
</Columns>

## Join Our Community

Connect with other developers, get help, and share your projects.

<Card
  title="Join Discord"
  href="https://discord.gg/Unb76E64Ct"
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  xmlns="http://www.w3.org/2000/svg"
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>
  Join our Discord community to connect with other developers, get help with integration, and share your projects.
</Card>

## Codealong tutorials

Learn Interhuman by building real apps alongside a step-by-step video walkthrough. These codealong tutorials pair live coding with the core APIs so you can see how everything fits together in practice.

<Columns cols={1}>
  <Card title="Build a Video Analyzer App" icon="sparkles" href="/how-to/build-video-analyzer-app-codealong">
    A guided walkthrough where you'll build a simple application that uploads a video, processes it through the Upload & Analyze API, and displays engagement state, social signals, and conversation quality outputs.
  </Card>
</Columns>