> For the complete documentation index, see [llms.txt](https://superfluid.gitbook.io/superfluid/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://superfluid.gitbook.io/superfluid/protocol-overview/in-depth-overview.md).

# In-Depth Overview

![Oh, you're approaching me?](/files/mNrNaMQF2sp4fDNzDGs9)

## What is Superfluid?

Superfluid is a smart contract framework that adds new ways to move digital value to the traditional ERC20 token standard we know and love. 

Superfluid consists of 4 main components: Super Tokens, Super Agreements, Super Apps, and the Superfluid Host. Read this overview to understand the "what" and the "how" behind these components and how they interrelate.

## Contents

First, learn about these Superfluid-enabled tokens which are the base of the Superfluid Protocol

{% content-ref url="/pages/GanKp5ANkCku8XE37amb" %}
[Super Tokens](/superfluid/protocol-overview/in-depth-overview/super-tokens.md)
{% endcontent-ref %}

Then, understand these Super Agreement features we've made which give Super Tokens cool untraditional value transfer methods (like money streaming!)

{% content-ref url="/pages/DyVZT8pnZ2vMLmwk4m4P" %}
[Super Agreements](/superfluid/protocol-overview/in-depth-overview/super-agreements.md)
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Next, learn about Super Apps which are smart contracts that can respond to Super Agreements with custom logic.

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[Super Apps](/superfluid/protocol-overview/in-depth-overview/super-apps.md)
{% endcontent-ref %}

And finally, get to know what brings all these parts together - the Superfluid Host.

{% content-ref url="/pages/KDb0a73Vsfc2abHr7Sw8" %}
[Superfluid Host](/superfluid/protocol-overview/in-depth-overview/superfluid-host.md)
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