> ## Documentation Index
> Fetch the complete documentation index at: https://docs.stream.estate/llms.txt
> Use this file to discover all available pages before exploring further.

# Authentication

Welcome to the beginning of your journey with our API. This page will guide you through the initial steps of understanding and utilizing our API to its fullest potential.

If you want to get an access and try out the API, please [sign up](https://stream.estate/signup) and create an API key in your settings. It is important to keep your API Key private and secure.

## Basic Example

All API calls require the `X-API-KEY` header. For an example of how to do this, see the code snippet below:

```bash Example Request theme={null}
curl --location -g --request GET 'https://api.stream.estate/documents/properties/{id}' \
--header 'Content-Type: application/json' \
--header 'X-API-KEY: <api_key>' \
```