# API

## Overview

Nado's API is divided into the following categories:

1. A **websocket/REST** API (**gateway**) that supports writes (executes) and polling (queries).
2. A **subscriptions** API that allows to subscribe to live data feeds.
3. An **indexer** API (**archive**) that allows you to query historical data.
4. A **trigger** API that allows to execute orders only under specified price conditions.

{% hint style="info" %} <mark style="color:purple;">**NOTE**</mark>: To contact the Nado team with any questions or inquiries about Private Gateway connections, such as increased limits, please reach out on the Telegram channel below:

* **Telegram Group =** TBD
  {% endhint %}

{% content-ref url="api/gateway" %}
[gateway](https://docs.nado.xyz/developer-resources/api/gateway)
{% endcontent-ref %}

{% content-ref url="api/subscriptions" %}
[subscriptions](https://docs.nado.xyz/developer-resources/api/subscriptions)
{% endcontent-ref %}

{% content-ref url="api/archive-indexer" %}
[archive-indexer](https://docs.nado.xyz/developer-resources/api/archive-indexer)
{% endcontent-ref %}

{% content-ref url="api/trigger" %}
[trigger](https://docs.nado.xyz/developer-resources/api/trigger)
{% endcontent-ref %}