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

# Getting started with Hanko Authenticator

> Prerequisites and setup for registering, authenticating, and de-registering devices with the Hanko Authenticator app.

This guide demonstrates how you can use the Hanko API and Hanko Authenticator to

* [**REGISTER**](/hanko-authenticator/quickstart/authenticator-app-registration) a device
* [**AUTHENTICATE**](/hanko-authenticator/quickstart/authenticator-app-authentication) with a device
* [**CONFIRM TRANSACTIONS**](/hanko-authenticator/quickstart/authenticator-app-transactions) with a device
* [**DEREGISTER**](/hanko-authenticator/quickstart/authenticator-app-de-registration) a device

Note that this section is not accompanied by a sample application. We will use manual HTTP requests using an HTTP client to exemplify the required interactions with the Hanko API. For the purpose of properly contextualizing the processes, we still assume the participation of a relying party application.

## Prerequisites

You will need:

* access to the Hanko Authentication API, which is currently not publicly available. To request test access, please
  contact us at [info@hanko.io](mailto:info@hanko.io).
* an HTTP client to send requests to our API (the following sections include examples using [HTTPie](https://httpie.org/) and [curl](https://curl.haxx.se/))
* the Hanko Authenticator app to register an account:

<Warning>
  The unbranded/Hanko-branded Android app is currently not available on the Google Play store. Contact us for an APK download link.
</Warning>

<a href="https://itunes.apple.com/us/app/hanko-authenticator/id1435048235?mt=8">
  <img src="https://mintcdn.com/hanko/DAs0LNceUiIaZd6m/images/hanko-authenticator/badges/ios-badge-en.png?fit=max&auto=format&n=DAs0LNceUiIaZd6m&q=85&s=f49cfcd12ff359430483ff24b0613efe" alt="Download on the App Store" style={{ height: "53px" }} width="504" height="168" data-path="images/hanko-authenticator/badges/ios-badge-en.png" />
</a>

You can view a list of supported devices on the [Authenticator Apps page](/hanko-authenticator/guides/authenticator-apps)