> For the complete documentation index, see [llms.txt](https://docs.keyless.io/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.keyless.io/consumer/readme.md).

# Keyless SDK Documentation

Key steps embed privacy-preserving biometric authentication in your mobile applications:

{% hint style="info" %}
**Step 1**: Understand how the Keyless components [interact with your application server](/consumer/introduction/components.md).
{% endhint %}

{% hint style="info" %}
**Step 2**: Understand a typical [biometric authentication flow](/consumer/introduction/integration-flows.md) and how it interacts with your application.
{% endhint %}

{% hint style="info" %}
**Step 3**: Follow the [getting started guide](/consumer/mobile-sdk-guide/getting-started.md) for Android or iOS.
{% endhint %}

{% embed url="<https://files.gitbook.com/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F-MCDr5oxGulTybKzhddo%2Fuploads%2FWMJlkbM6KeKLWSTeBPjl%2FDemo%20Oct%202025%20-%20Login.mp4?alt=media&token=f97c6e1e-86e1-4a18-a1fb-086138a803f7>" %}