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

# Quickstart

Superbeam uses viem internally. You can get started with the installation in a single command

{% code fullWidth="false" %}

```sh
npm i superbeam
```

{% endcode %}

### Import and Initialize

```javascript
import {superSDK} from "superbeam"
const superbeam = new superSDK();
```

### Fetch Balance across all the superchains

`getBalance`  api lets you fetch Balance of any asset across superchain interop enabled chains\
\
It accepts two arguments \
a) `address : Address`  Your wallet address\
b)  `tokenAddress ? (optional) : Address`  Token Address you want to find the balance for. \
( It will fetch the balance of the native token - (ETH) if not provided ) \
\
Code example :- 

```javascript
import { superSDK } from "superbeam";
const superbeam = new superSDK();
const balance = await superbeam
    .getBalance("0xf39Fd6e51aad88F6F4ce6aB8827279cffFb92266")
// to fetch ETH Balance - tokenAddress field is empty
console.log(balance);  
```

```sh
{
total: 19999999831999998824000n,
breakdown: {
supersim0: '9999.999936999999559',
supersim1: '9999.999894999999265'
},
asset: 'ETH'
}
```

> **Info:** Currently, Superbeam is live on Supersim and Devnets. You can choose a specific environment by initializing the sdk with the respective fields.