# Building with Account Abstraction

Igra supports both EIP-7702 (protocol-level EOA delegation) and ERC-4337 (smart accounts). Prague/Pectra is active from genesis.

## What's Available

| Feature                        | Status    | Requires                            |
| ------------------------------ | --------- | ----------------------------------- |
| EIP-7702 atomic batching       | Works now | Nothing — protocol-level            |
| ERC-4337 smart accounts        | Works now | EntryPoint + Factory deployed       |
| Gas sponsorship (paymaster)    | Not yet   | VerifyingPaymaster + bundler needed |
| Session keys / spending limits | Works now | Via Simple7702Account delegation    |

## EIP-7702 — Batch Transactions from Any EOA

Send a type-4 transaction that delegates an EOA to Simple7702Account and batches multiple calls in one atomic tx. No smart account deployment needed.

```javascript
// Example: EOA delegates to Simple7702Account for one tx
// Approve token + swap on DEX in a single atomic transaction
// No smart account deployment needed

const authorization = {
  chainId: 38833,
  address: "0x4Cd241E8d1510e30b2076397afc7508Ae59C66c9", // Simple7702Account
  nonce: await provider.getTransactionCount(wallet.address),
};

// Sign authorization with EOA
const signedAuth = await wallet.signAuthorization(authorization);

// Send type-4 tx with batched calls
const tx = await wallet.sendTransaction({
  type: 4,
  authorizationList: [signedAuth],
  to: wallet.address, // calls execute on your own EOA (now delegated)
  data: encodeBatchedCalls([approveCall, swapCall]),
  gasPrice: ethers.parseUnits("1100", "gwei"),
});
```

## ERC-4337 — Create a Smart Account

Deploy a smart account via SimpleAccountFactory:

```javascript
const factory = new ethers.Contract(
  "0x13E9ed32155810FDbd067D4522C492D6f68E5944",
  ["function createAccount(address owner, uint256 salt) returns (address)"],
  wallet
);

const tx = await factory.createAccount(ownerAddress, 0, {
  gasPrice: ethers.parseUnits("1100", "gwei"),
});
```

## Reference

* [EIP-4337](https://eips.ethereum.org/EIPS/eip-4337) — Account Abstraction Using Alt Mempool
* [EIP-7702](https://eips.ethereum.org/EIPS/eip-7702) — Set EOA account code
* [Contract Addresses](https://igra-labs.gitbook.io/igralabs-docs/for-developers/contract-addresses/account-abstraction) — Deployed contracts and ABIs


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