> For the complete documentation index, see [llms.txt](https://docs.ipor.io/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.ipor.io/build-on-fusion/introduction.md).

# Fusion Introduction

What IPOR Fusion is, who this documentation is for, and how onchain and offchain responsibilities split between vaults and Alphas.

## What is Fusion?

IPOR Fusion is an [institutional-grade](https://docs.ipor.io/fusion-for-institutions/) asset management infrastructure for automated execution. It is an unopinionated and customizable framework that asset managers can use to deploy assets onchain while implementing custom algorithms offchain.

Functioning as a universal integration layer, the protocol utilizes a modular [vault architecture](/build-on-fusion/architecture-overview/what-is-a-fusion-vault.md) to connect with the entire DeFi ecosystem. Complex cross-protocol interactions are routed through isolated, standardized adapter contracts known as "Fuses." This composable design allows builders to bundle multiple operations into a single, atomic execution, abstracting the technical overhead of managing diverse protocol interfaces.

It can be considered the *Prime Brokerage Protocol of DeFi*. From a TradFi asset manager's perspective, Fusion is a single entry point for the integration, coordination, monitoring, execution, and accounting of sophisticated DeFi strategies.

The protocol clearly separates concerns between onchain state and offchain computation:

* **Onchain components:** Smart contracts enforce transparent asset allocation, strict risk limits, and verifiable accounting.
* **Offchain execution:** External agents (called "[Alphas](/build-on-fusion/architecture-overview/what-is-an-alpha.md)") execute strategy operations based on parameters and logic configured by vault managers (called "[Atomists](/build-on-fusion/architecture-overview/what-is-an-atomist.md)").

## Who is this documentation for?

This section provides technical specifications and integration guides for anyone building on or interacting with the Fusion ecosystem. The primary audience includes:

* **Vault Managers (Atomists) & Risk Managers** configuring market substrates, exposure limits, and role-based access controls.
* **Backend Developers** building offchain execution agents (Alphas).
* **Smart Contract Engineers** integrating new protocols via the Fuse architecture.
* **Integrators** connecting external applications to Fusion's ERC4626 vault interfaces.

If you require technical support or have specific integration questions, please open a ticket on the IPOR Labs Discord server.

{% hint style="info" %}
To stay up to date on frontend, MCP and SDK feature updates, join the [**announcement channel on Telegram**](https://t.me/fusionsdk)
{% endhint %}