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

# Login into Castmill

Castmill allows you to login using different mechanisms, you can create a custom Castmill account, or if you prefer you can login using your existing Google, Facebook or LinkedIn accounts. Access the castmill app by pointing your browser to <https://app.castmill.com>.

![The login dialog](/files/-M_LD7JgBnbnDMznr8IF)

As soon as you login, you will get to the main dashboard. From this dashboard you have access to everything you need in order to operate your players and program the content that you want to display on them.

![](/files/-M_LDb65uJafBtRqGCNP)

As you can see, the "Players" tab is preselected, and as expected there are no players in the list.

{% hint style="info" %}
In Castmill a Player and a Display are often interchangeable. In reality, a player is usually a piece of hardware connected to a display, but sometimes the display has a built in player.
{% endhint %}


---

# Agent Instructions
This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com.

## Querying This Documentation
If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://docs.castmill.com/getting-started/signup-in-castmill.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.