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

# Introduction

> Age-verify your users without ever touching their identity documents.

AnonAge lets your site or app confirm a user meets an age requirement — **18+**, **21+**,
and so on — while learning **only a yes/no**. You never see their name, date of birth, or
documents; identity verification happens in the user's AnonAge wallet against a KYC provider,
not on your servers.

## How it works

<Steps>
  <Step title="Open a session">
    Your server calls the API with an age requirement and a callback URL, and gets back an
    opaque `session_id` + `nonce`.
  </Step>

  <Step title="Show the user a code">
    You render a QR code (or a tap-to-verify link) containing only `{ session_id, nonce }`.
    Your API key and callback URL never leave your server.
  </Step>

  <Step title="The user approves in their wallet">
    They scan/tap and consent to share a yes/no. AnonAge computes the result **server-side**
    from their already-verified age — never from anything the client sends.
  </Step>

  <Step title="You receive a signed result">
    AnonAge POSTs your callback URL with a **signed** `above_age_required` boolean and a
    receipt id. You verify the signature and unlock your content.
  </Step>
</Steps>

## What you get — and don't

| You receive                                   | You never receive     |
| --------------------------------------------- | --------------------- |
| `above_age_required` (true/false)             | Name                  |
| A `receipt_id` for your records               | Date of birth         |
| An `assurance` level (KYC vs family-asserted) | ID documents / selfie |

<Note>
  The result is always computed on AnonAge's servers from a verified age claim. A client can't
  claim to be older than they are — closing the classic "trust the client's age" hole.
</Note>

## Next steps

<CardGroup cols={2}>
  <Card title="Quickstart" icon="rocket" href="/quickstart">
    Integrate the full flow in about 10 minutes.
  </Card>

  <Card title="Authentication" icon="key" href="/authentication">
    Create and use API keys.
  </Card>

  <Card title="Callbacks" icon="signature" href="/webhooks">
    Verify the signed result (with copy-paste recipes).
  </Card>

  <Card title="API Reference" icon="code" href="/api-reference/introduction">
    Every endpoint, request and response.
  </Card>
</CardGroup>