# Getting Started

DerpDEX is built on the zkSync ERA and Base chain which are Ethereum compatible including opBNB (BNB Layer-2 Optimistic Rollup) and you can use any EVM-compatible wallet to interact with DerpDEX.

To add the **zkSync ERA** network to your wallet, you can try adding the below credential to you respective wallet.

* Network Name: `zkSync ERA Mainnet`
* RPC URL: `https://mainnet.era.zksync.io`
* Chain ID: `324`
* Currency Symbol: `ETH`
* Block Explorer URL: `https://explorer.zksync.io/`

To add **Base chain** on the wallet, you can add the below credential to the wallet.

* Network Name: `Base Mainnet`
* RPC URL: `https://mainnet.base.org`
* Chain ID: `8453`
* Currency Symbol: `ETH`
* Block Explorer URL: `https://basescan.org`

To add **opBNB** network on the wallet, you can add the below credential to the wallet.

* Network Name: `opBNB Mainnet`
* RPC URL: `https://mainnet.base.org`
* Chain ID: `204`
* Currency Symbol: `BNB`
* Block Explorer URL: `http://opbnbscan.com/`

By default DerpDEX works on zkSync chain, it can be switched to Base or opBNB chain using the button on the top right corner.

<figure><img src="https://3050206827-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FYiUQ0TCTeU3ZWoBCdNEi%2Fuploads%2FYigDLbD2DoNwIW6dqYlq%2Fimage.png?alt=media&#x26;token=0ecec8dc-b466-4d2e-b3c4-c951d5abdca4" alt=""><figcaption></figcaption></figure>

Using DerpDEX requires some tokens on the **zkSync ERA**, **Base chain** and **opBNB** to perform a swap or add liquidity to the pool. Bridge can be used to bridge tokens from Ethereum to zkSync or Base chain including BNB to opBNB. We have already developed **zkSync** and **opBNB** bridge which can be accessed from link below:

{% embed url="<https://app.derpdex.com/#/bridge>" %}

To bridge tokens between Base<->ETH, the official base bridge can be used.

{% embed url="<https://bridge.base.org/deposit>" %}

You can access the web app through [https://app.derpdex.com/](https://test.derpdex.com/) and try out swapping some tokens or adding liquidity to the pool.