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

# Hello Inworld

> Inworld AI developer docs: TTS (Text-to-Speech), STT (Speech-to-Text), Realtime (Speech-to-Speech), and LLM Router API. Quickstarts, guides, and API reference.

## Build with Inworld

<CardGroup cols={2}>
  <Card title="Realtime Text-to-Speech" icon="waveform-lines" iconType="light" href="/tts/tts">
    State-of-the-art voice AI at a radically accessible price point
  </Card>

  <Card title="Realtime Speech-to-Text" icon="microphone" iconType="light" href="/stt/overview">
    Transcribe audio to text through a single, multi-provider API
  </Card>

  <Card title="Realtime API" icon="comment-dots" iconType="light" href="/realtime/overview">
    Low-latency, natural speech-to-speech conversations
  </Card>

  <Card title="Realtime Router" icon="shuffle" iconType="light" href="/router/introduction">
    Powerful LLM routing to optimize for every user and context
  </Card>
</CardGroup>

<Tip>
  **Using AI to code?** Paste `https://docs.inworld.ai/llms.txt` into your assistant so it knows every page on this site. Want live search? [Add the MCP server](https://docs.inworld.ai/tts/resources/vibe-coding).
</Tip>