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

# Transactional API

See the Transactional API docs [here](https://app.emaildelivery.com/api/doc)

Transactional docs are also hosted on your installation at your own domain on the email marketing platform frontend 

Go to Messages -> Transactional -> API Documentation at the bottom of the page

{% hint style="warning" %}
You will only see your API key if you [log in as a user account](/docs/backend-administration/creating-user-accounts.md) on the frontend, if you impersonate a customer account as a backend admin the API key will be blank
{% endhint %}

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