> 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/integration/es/brand-pages/brand-page-retailer-integration-guide/authentication-1.md).

# Autenticación

Brand Pages utiliza la misma clave de API que la Epsilon plataforma de RMN; no se requiere una clave independiente.

Las solicitudes incluyen un `Authorization` encabezado utilizando la autenticación básica de HTTP, con la clave de API codificada según la especificación de la Request for Comments (RFC):

```apache
/Authorization: Basic base64(<apiKey>:)
```

Además del formato definido por la RFC anterior, la plataforma también admite pasar el valor existente de la clave de API directamente en el `Authorization`encabezado para mantener la compatibilidad con las integraciones de clientes establecidas.

```apache
Authorization: Basic \<existing_api_key>
```

<br>


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