> ## Documentation Index
> Fetch the complete documentation index at: https://docs.spatius.ai/llms.txt
> Use this file to discover all available pages before exploring further.
# Welcome to Spatius
> What Spatius is, the core components, and how to start integrating.
export const SpatiusArchitectureDiagram = () => {
return
;
};
Spatius turns avatar speech audio into real-time motion data. Your client renders the avatar locally, so you do not need to stream finished avatar video.
## Core components
| Term | What it is |
| ----------------- | --------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| **Spatius** | The platform — [Spatius Studio](https://app.spatius.ai) for managing apps and avatars, Motion Server in the cloud, and the AvatarKit SDKs you ship in your app. |
| **AvatarKit** | The client SDK family that downloads avatar assets, renders the avatar locally, and plays synchronized audio. Available for Web, iOS, Android, and Flutter. |
| **Motion Server** | The Spatius cloud service that receives avatar speech audio and returns lip-sync motion data, \~10–15 KB/s. |
## Pick your path
Spatius integrations split into two categories.
Not sure which path fits your team? Start with [Choose Your Integration Path](/getting-started/how-to-integrate) to compare latency, production ownership, and developer effort.
### Already using a third-party agent or realtime platform?
Add `livekit-plugins-spatius` to your LiveKit Agents worker. Web client today.
Add Spatius as a Convo AI avatar provider and render from an Agora channel.
### Building directly with Spatius SDKs?
Your client connects to Motion Server directly. Smallest footprint; your backend only mints Session Tokens.
Your backend owns ASR, LLM, TTS, the Server SDK, and the downstream transport.
## Next steps
App ID, Avatar ID, Session Token, API Key — who issues each and where each is used.
Compare latency, client support, production ownership, and developer effort.
Web, iOS, Android, and Flutter first-run quickstarts.