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

# Autenticação

O Brand Pages usa a mesma chave de API que a Epsilon plataforma RMN; nenhuma chave separada é necessária.

As requisições incluem um `Authorization` cabeçalho usando a autenticação HTTP Basic, com a chave de API codificada de acordo com a especificação Request for Comments (RFC):

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

Além do formato definido pela RFC acima, a plataforma também suporta a passagem direta do valor da chave de API existente no `Authorization`cabeçalho para compatibilidade com integrações de clientes estabelecidas.

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

<br>


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