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

# Overview

> A gentle introduction

**SID is the most accurate way to use custom information with AI.**
We offer RAG across information from almost anywhere:
Your own servers, your customers' data, and third-party APIs like Google Mail, Notion, and Google Drive.

<CardGroup cols={2}>
  <Card title="Quickstart tutorial" icon="rocket" href="/start/quickstart">
    Query your first capsule
  </Card>

  <Card title="Core concepts" icon="book" href="/start/core-concepts">
    Learn about the basics of SID
  </Card>
</CardGroup>

SID...

* takes data from almost anywhere
* automatically extracts information
* hosts that information publicly or privately
* lets you use that information with any AI modelå

In order to be the most accurate, we need to be opinionated about how the data is structured, processed, and stored.
SID is probably not a fit if you care about the `ef_construction` value for the <Tooltip tip="If you care, we might be interested in hiring you!">HNSW index</Tooltip>.
We are a fit if you're looking for a self-improving, reliable retrieval pipeline for RAG.

If you're new to SID, we recommend starting with our [quickstart tutorial](/start/quickstart).
<Note>We never train on your data.</Note>

## Help

This documentation will be insufficient in uncountable ways.
If you're stuck on something, please [email us](mailto:support@sid.ai) or book a time to chat in the dashboard.
Should you find a bug or an error, you can use the "Suggest edits" and "Raise issue" buttons at the bottom of every page.