> For the complete documentation index, see [llms.txt](https://help.citrusad.com/retail-media-interface/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://help.citrusad.com/retail-media-interface/partner/es/partner-api-authentication/authenticating-requests.md).

# Solicitudes de autenticación

Epsilon Retail Media utiliza el método User Key para autenticar las solicitudes de API. También puedes recuperar la User Key a través de la [Recuperar la clave de usuario](/retail-media-interface/partner/es/partner-api-authentication/getuserkey.md) API, que sirve como un método alternativo para obtener la User Key desde la configuración del usuario. La API Retrieve user key permite a los socios generar una clave de autenticación proporcionando un nombre de usuario y una contraseña válidos.

## User key

En la Epsilon Retail Media plataforma, los anunciantes pueden encontrar su clave de usuario en la sección **User Settings**. Esta clave es única a nivel de **usuario** y se puede integrar en tu aplicación para gestionar la autenticación con el Epsilon Retail Media sistema.

<figure><img src="/files/q0a6qFeSxPMyuETbnLfD" alt="" width="100%"><figcaption></figcaption></figure>

{% hint style="warning" %}
Esta clave de usuario no representa a un equipo y no debe tratarse como tal.
{% endhint %}

### Diagrama del flujo de autenticación

<figure><img src="/files/KWcCljGMoeAC8I6BEC4Z" alt="User key flow.png" width="100%"><figcaption></figcaption></figure>


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