> ## Documentation Index
> Fetch the complete documentation index at: https://developers.particle.network/llms.txt
> Use this file to discover all available pages before exploring further.

# Introduction to Account Abstraction

> ERC-4337 smart accounts, powered by Particle Network’s SDK.

**Account Abstraction (AA)** brings smart account capabilities to users, enabling features like gasless transactions, batched operations, and programmable account logic.

Particle Network provides a full-stack **Account Abstraction SDK**, designed for developers who want to implement **ERC-4337 Smart Wallet-as-a-Service** with minimal effort. Whether paired with **Particle Auth** (MPC-secured EOAs) or integrated externally, the SDK handles the heavy lifting of smart account deployment and UserOperation management.

<Frame caption="User flow of Particle Network’s Account Abstraction.">
  <img className="block dark:hidden" src="https://mintcdn.com/particlenetwork-fccf74d2/mClkbH824kJJ1cTu/aa/images/aa.png?fit=max&auto=format&n=mClkbH824kJJ1cTu&q=85&s=3c7c812eb3f437d9e60a222ca957b7fd" alt="Account Abstraction" width="3840" height="2160" data-path="aa/images/aa.png" />

  <img className="hidden dark:block" src="https://mintcdn.com/particlenetwork-fccf74d2/mClkbH824kJJ1cTu/aa/images/aa.png?fit=max&auto=format&n=mClkbH824kJJ1cTu&q=85&s=3c7c812eb3f437d9e60a222ca957b7fd" alt="Account Abstraction" width="3840" height="2160" data-path="aa/images/aa.png" />
</Frame>

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# Understanding Account Abstraction

From a technical standpoint, Account Abstraction (ERC-4337) separates account logic from EOAs, replacing them with **Smart Accounts**. These programmable accounts allow for improved UX while staying fully decentralized.

The **Particle AA SDK** enables developers to:

* Deploy smart accounts bound to EOAs (MPC-secured via Particle Auth or external).
* Construct, sponsor, and send **UserOperations**.
* Retrieve fee quotes and handle gas sponsorship.
* Support recovery flows and custom logic.

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## Key Features

### User Experience

* **Gasless transactions** through paymaster sponsorship.
* **Batched operations** (e.g., approve + swap in one click).
* **Programmable logic** for recovery, spending limits, or custom policies.

### Developer Benefits

* **Full ERC-4337 support** out of the box.
* Works natively with Particle Auth (MPC EOAs) or external wallets.
* Simple SDK integration for constructing, simulating, and sending UserOperations.

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<Card title="Explore the AA SDK" icon="cogs" href="/aa/introduction">
  Start building with ERC-4337 smart accounts.
</Card>

<Tip>
  **Smart Wallet-as-a-Service**

  Particle’s AA SDK provides the infrastructure to launch fully programmable smart wallets, with sponsorship, batching, and recovery built-in. Ideal for consumer-ready dApps.
</Tip>