# Using Plugins

## Plugin Types

There are several types of plugins:

* [Scenario steps](/plugins/using-plugins/scenario-steps-plugins.md) (Integrations). For example, the [Trello](https://trello.com/) plugin
* [External authentication](/plugins/using-plugins/user-authentication-plugins-not-web3.md): Facebook, Google, Open ID
* [Web-plugins](/plugins/using-plugins/web-plugins.md): Web-components for the [Directual portal](/web-pages/portal.md)
* [Blockchain (Web3)](/plugins/using-plugins/blockchain-web3.md) plugins: These include integration with like MetaMask, WalletConnect, fetching transactions, performing transactions, calling smart-contracts.

## Installing/Uninstalling plugins

Before you can use a plugin, you must to install it.

Follow these steps:

* Go to the Plugins section in the main menu
* Choose the plugin
* Install it by following the instructions in the modal window. 

![Example of installing a Scenario plugin](/files/-MfX-ldQCXkTF6mDav1P)

{% hint style="info" %}
On free plans, you can use only one plugin. However, with any [paid plan](/pricing-and-billing/pricing-plans.md), you can enjoy unlimited access to plugins.
{% endhint %}


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