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

# Cronos

> Cronos is especially beneficial for those looking to boost performance while maintaining the decentralized principles of Ethereum.

## Overview

[Cronos](https://cronos.org/) is a Layer 2 solution enhancing Ethereum by providing developers with faster and more cost-efficient transactions.

**As Cronos is EVM compatible**, you can follow the [Ethereum](/embedded-wallets/blockchains/ethereum/javascript) documentation to send your first transaction and utilize all other wallet features.

## Configure Cronos

Via Magic SDK, you can connect to [Cronos](https://cronos.org/). Cronos is EVM compatible so you can directly follow the [Ethereum installation](/embedded-wallets/blockchains/ethereum/javascript).

### Mainnet

Mainnet Block Explorer: [https://cronoscan.com/](https://cronoscan.com/)

```javascript JavaScript icon="square-js" theme={null}
const customNodeOptions = {
  rpcUrl: "https://evm.cronos.org/", // Cronos mainnet URL
  chainId: 25, // Your own node's chainId
};

// Setting network to Cronos
const magic = new Magic("YOUR_PUBLISHABLE_API_KEY", {
  network: customNodeOptions,
});
```

### Testnet

Testnet Block Explorer: [https://testnet.cronoscan.com/](https://testnet.cronoscan.com/)

```javascript JavaScript icon="square-js" theme={null}
const customNodeOptions = {
  rpcUrl: 'https://evm-t3.cronos.org/', // Cronos testnet URL
  chainId: 338, // Cronos testnet chainId
}

// Setting network to Cronos
const magic = new Magic('YOUR_PUBLISHABLE_API_KEY', { network: customNodeOptions });
```

## Compatibility

* All `Auth`, `User` and most `Wallet` module methods\*
* All EVM Provider functionality to respond to supported [RPC methods](/embedded-wallets/sdk/client-side/javascript#evm-rpc-methods)

*\*Some Widget UI features are not yet compatible such as NFT Viewer and Fiat On-ramps.*

*Need a feature or see a problem?* File an issue on our [github repo](https://github.com/magiclabs/magic-js).

## Resources & Tools

* Documentation: [https://docs.cronos.org/getting-started/readme](https://docs.cronos.org/getting-started/readme)

* Block Explorer:

  * [https://cronoscan.com/](https://cronoscan.com/) (Mainnet)
  * [https://explorer.cronos.org/testnet/](https://explorer.cronos.org/testnet/) (Testnet)

* [GitHub](https://github.com/magiclabs/example-cronos)