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

# ETH → Base Bridge Guide

> Step-by-step guide to bridge ETH from Ethereum Mainnet to Base network using MetaMask

> [!NOTE]
>
> **Before You Start**
>
> * Ensure you have ETH deposited in your MetaMask wallet
> * Keep extra ETH on Ethereum Mainnet for gas and future bridge fees
> * MetaMask defaults to Ethereum Mainnet - verify your network

## Bridge Your ETH to Base

Follow these simple steps to bridge your ETH from Ethereum Mainnet to Base network using MetaMask.

> **Requirements**
>
> MetaMask wallet (app or browser extension) with ETH balance on Ethereum Mainnet

## Step-by-Step Guide

### 1. Open MetaMask

Launch your MetaMask app or browser extension with ETH deposited.

> **Network Check**
>
> MetaMask connects to Ethereum Mainnet by default. Verify you're on the correct network.

### 2. Verify Ethereum Mainnet

![](https://mintcdn.com/craftengine/-V4djIuMeLYqrhxj/token/bridging/eth-base1.png?fit=max\&auto=format\&n=-V4djIuMeLYqrhxj\&q=85\&s=a091348f7455902dda50403a9d2fc016)

Select **Ethereum Mainnet** in the network dropdown (upper left corner) if not already selected.

### 3. Access Bridge Feature

Click the **"Bridge"** option to swap ETH from Ethereum Mainnet to Base network.

### 4. Configure Your Bridge

![](https://mintcdn.com/craftengine/-V4djIuMeLYqrhxj/token/bridging/eth-base2.png?fit=max\&auto=format\&n=-V4djIuMeLYqrhxj\&q=85\&s=631de26ff1d999e48dbd3cf37ea0e160)

> **Bridge From**
>
> **ETH** (Ethereum Mainnet)

> **Bridge To**
>
> **ETH** (Base Network)

Select Base in the "Bridge to" option and select ETH token on the Base Mainnet.

### 5. Enter Bridge Amount

Input the amount of ETH you want to bridge to Base network.

> [!NOTE]
>
> **Important**: Always keep enough ETH on Ethereum Mainnet for:
>
> * Current gas and bridge fees
> * Future bridging transactions
> * Emergency operations

### 6. Review Fees

![](https://mintcdn.com/craftengine/-V4djIuMeLYqrhxj/token/bridging/eth-base3.png?fit=max\&auto=format\&n=-V4djIuMeLYqrhxj\&q=85\&s=003329f04193349820ca3759d6e6b77b)

Carefully check the gas and bridge fees before proceeding. Ensure you have sufficient ETH remaining.

### 7. Submit and Approve

1. Click **"Submit"** to initiate the bridge
2. **Approve** the transaction in MetaMask
3. Wait for the transfer to complete

> **Processing Time**
>
> Bridge typically completes in 1-5 minutes. Track progress in MetaMask Activity tab.

### 8. Switch to Base Network

![](https://mintcdn.com/craftengine/-V4djIuMeLYqrhxj/token/bridging/eth-base4.png?fit=max\&auto=format\&n=-V4djIuMeLYqrhxj\&q=85\&s=c1d74bddf2f7e87ebc632a076d61b1bc)

After bridging completes, add and switch to Base Mainnet:

* Click the network dropdown (upper left corner)
* Add Base Mainnet if not already added
* Switch to Base Mainnet

### 9. View Your ETH on Base

Your bridged ETH is now visible and ready for:

* Trading on Base DEXs
* Swapping for tokens on Base network
* Interacting with Base dApps

> **Success!**
>
> Your ETH has been successfully bridged to Base network and is ready to use.


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