# Streams

### Streams are the core functional units of Streamly.

{% content-ref url="../concepts/stream" %}
[stream](https://happybara.gitbook.io/streamly/concepts/stream)
{% endcontent-ref %}

### They are also the basis on which customers are [billed](https://dev.happybara.io/stripe/app_page/streamly).

{% embed url="<https://api.happybara.io/stripe/app_page/streamly>" %}

{% content-ref url="streams/create" %}
[create](https://happybara.gitbook.io/streamly/reference/streams/create)
{% endcontent-ref %}

{% content-ref url="streams/find" %}
[find](https://happybara.gitbook.io/streamly/reference/streams/find)
{% endcontent-ref %}

{% content-ref url="streams/modify" %}
[modify](https://happybara.gitbook.io/streamly/reference/streams/modify)
{% endcontent-ref %}