# EASY Bridging to Blast ### Before we even start... {% hint style="info" %} To those who don't already hold their ETH on layer 2 networks (such as **Base** or **Optimism**) or **BNB Chain**: \ \ Ensure you have a layer 2 network or **BNB Chain** added in your **MetaMask** (or other self-custodial wallet you use).\ \ You will need one to easily bridge your ETH to **Blast** for a very affordable price (**\~$1**). {% endhint %} ### If you don't have one, visit\ \ 🟡 **Browser Extension** (Chrome & Compatibles)\ [**https://chromewebstore.google.com/detail/metamask/nkbihfbeogaeaoehlefnkodbefgpgknn?utm\_source=google.com**](https://chromewebstore.google.com/detail/metamask/nkbihfbeogaeaoehlefnkodbefgpgknn?utm_source=google.com) 🟡 **Android** & Derivatives\ [**https://play.google.com/store/apps/details?id=io.metamask\&hl=en\_US\&gl=US**](https://play.google.com/store/apps/details?id=io.metamask\&hl=en_US\&gl=US) 🟡 **iOS**/**iPad OS**/**Mac OS** (Apple Silicon)\ [**https://apps.apple.com/us/app/metamask-blockchain-wallet/id1438144202**](https://apps.apple.com/us/app/metamask-blockchain-wallet/id1438144202)\ \ to install **MetaMask**, one of the most widespread and adopted self-custodial wallets that is fully compatible with **Blast** and **Blastex** and is used to write this bridging guide. {% hint style="info" %} Follow MetaMask's simple installation steps then go right back to this guide. {% endhint %} {% hint style="warning" %} Please ensure that you copy and store your 12-word recovery phase in a secure, preferably physical, place. {% endhint %} ### Adding Base You will need a layer 2 network, as was mentioned before. We used **Base** for this guide. In our opinion, it (and **Optimism**) is the fastest and cheapest way to bridge to **Blast**. Add **Base** to your wallet using this convenient link for auto-adding. [**https://chainlist.org/?search=base**](https://chainlist.org/?search=base) The link will take you directly to the **Base** addition button, but, before that, you'll need to connect your wallet first. So click **Connect Wallet**.

ChainList Interface (Logged Out, Base Searched)

Your **MetaMask** will ask you to confirm the connection so hit **Connect**.

Once connected, your **MetaMask** will automatically prompt you to add the **Base** network to your wallet. Click **Approve** to finalize the addition.

Not that Base is added, **MetaMask** will suggest that you switch to Base right away. Do it by pressing **Switch Network**.

**✅ Done! You've successfully added the Base network.** ### Adding Blast Add **Blast** to your wallet by using this convenient link for auto-adding: [**https://chainlist.org/?search=blast**](https://chainlist.org/?search=blast) {% hint style="success" %} This process is the same as **Base**, except that now you have your wallet connected, so there's one less step. {% endhint %} ## Leveraging Rhino.fi Bridge You can now bridge your ETH to **Blast** from any network in 2 minutes for cheap. Nice and easy. To do this, you'll need to visit the [**rhino.fi**](https://app.rhino.fi/bridge?token=ETH\&chainOut=BLAST\&chain=ARBITRUM) bridge. {% hint style="info" %} You're in a lot of luck if you hold your ETH on one of these L1 or L2 networks:\ \ **Arbitrum One**, **Optimism**, **Scroll**, **Starknet**, **zkSync Era**, **Kroma**, **Mantle**, **Mode**, **Rari**, **Zeta**, **Base**, **Arbitrum** **Nova**, **Avalanche**, **BNB** **Smart** **Chain**, **Ethereum**, **Linea**, **Manta** **Pacific**, **Polygon**, **Polygon** **zkEVM**, or **rhino.fi**.\ \ The reason is **rhino.fi** supports all of them for bridging to the one and only **Blast**. {% endhint %} So, open up [**rhino.fi**](https://app.rhino.fi/bridge?token=ETH\&chainOut=BLAST\&chain=ARBITRUM) and connect your wallet.

Let's go for **MetaMask** so we cover the whole bridging process for the vast majority of our community, so choose **MetaMask**.

Then the **Connect Your Wallet** pop-up will appear followed by your **MetaMask** wallet's signature window. Don't touch the **Connect Your Wallet** window just yet and head to the **MetaMask** signature window and hit **Sign**.

{% hint style="info" %} If at any point you don’t see a **MetaMask** window open when it should, simply click the **MetaMask fox icon** with a number (indicating there are signature requests that need your attention) in your browser’s extensions section to make it appear. {% endhint %}

Go back to rhino.fi's **Connect Your Wallet** pop-up and click **Authenticate Your Wallet**, which will take you to another MetaMask signature window.

Click **Sign** here.

Return to the **Connect Your Wallet** window and, finally, hit **Enable L2 access**.

Now you're all set to bridge your precious ETH. ## Selecting Networks & Bridging ETH to Blast Next step, you'll see the following window:

Set **ETH** in **Token**, enter the amount of ETH you'd like to bridge, select the source blockchain, and **Blast** right below as the destination chain. You'll see how much you're going to receive after gas fees. {% hint style="info" %} Remember, **rhino.fi** currently charges no bridging fees of their own. {% endhint %} You can also bridge for another address by clicking **Other Address.** {% hint style="success" %} Per the **rhino.fi** team, bridging from layer 2s as well as **BNB Chain** typically takes less than 30s and up to 1.5 min. tops. {% endhint %} Hit **Bridge** once you've set everything required in the window and ensured everything is correct. The **Initiating Bridge** window will pop up.

Then a **MetaMask transaction confirmation** window will follow where you need to check that you configured the transaction correctly and the gas fee suits you. Then simply click **Confirm** to initiate the bridging.

When you've confirmed the transaction, **rhiho.fi** will give you a notification that your ETH is about to be bridged.

Rhino.Fi Bridging About to Start Notification

Soon you'll get a **MetaMask** pop-up you that your transaction was a success.

{% hint style="info" %} Or, in very rare instances, it may fail, in which case you'll need to try again and check that the info you input is correct and that you have enough ETH on the destination blockchain (**Base** in this case) to make the transaction. {% endhint %} That's when you'll notice a **Success** section in your **rhino.fi** interface with key details about the transaction. This is when the bridging officially starts.

{% hint style="success" %} Only **\~58s** in our case, which is practically instant in terms of bridging. Smooth and seamless too. {% endhint %} You'll also see that you now have a **Recent Transactions** table next to the main bridging window with your transaction shown as processing.

Finally, it will show a green checkmark in the Recent Transactions table which means your ETH has been successfully bridged to **Blast**. Yay 🥳!

Rhino.fi Main Bridging Window + Recent Transaction Table

**✅ Done. Welcome your ETH on Blast!** As you can see, bridging from **Base** only cost us a measly 5 cents. ## But How Do I Get My ETH on a L2? Welp, this question only means you've been a perma CEX (centralized exchange) user, but fret not! Here's how.\ \ Let's, once again, take a look at the example of the most used platform, and we're talking CEXs, so it's **Binance**. {% hint style="info" %} The following process is quite similar among all centralized exchanges, so can use this guide to follow similar steps on Bybit, for example. {% endhint %} Now, log in to your Binance, click the **Wallet** button in your sidebar, then select **Fiat & Spot**.

Here, hit **Withdraw** in the ETH row, which will take you straight to the withdrawal setup page.

Great, only a couple more steps left to send your ETH coins to a Layer 2 network!

Binance Interface: Wallet Withdrawal Page (Fiat & Spot)

1. ETH will be selected by default if you chose it in the previous step. However, make sure that **ETH** is indeed set. 2. Enter your self-custodial wallet address (such as **MetaMask** or **Rabby**). 3. Select a network. Currently, **Base** and **Optimism** are the most cost-effective options. 4. Input the amount and ensure that **Spot Wallet** is selected (or **Funding Wallet** if that’s where your ETH is stored). 5. Check that the gas fee for transferring your ETH to a Layer 2 blockchain is acceptable to you. 6. Verify that you are satisfied with the amount you will receive. After that, you'll see a withdrawal confirmation pop-up. Ensure again that all the details are right and hit **Continue**.

The **Security Verification Requirements** window will open up where you need to approve the withdrawal with your authenticator app of choice (like **Google Authenticator**) and email where you'll receive OTPs (one-time passwords).

Refer to your authenticator app and paste the code in the input field. {% hint style="info" %} Ensure you do everything quickly so the time-based authentication code stays valid. {% endhint %}

Security Verification Window (Authenticator App Code)

Now do the same for **Email**. Press **Email** then click the yellow **Get Code** button to have the code sent to the email you use for **Binance**. Copy and paste the code you got in this field. Once you paste your email code, the system will automatically notify you that your withdrawal request is processing. {% hint style="info" %} For example, for **Base,** it takes just several seconds until you've gotten your ETH on **Base**. {% endhint %}

## I Don't See My ETH in Binance Fiat & Spot Wallet If you don't see your ETH on your Dashboard's **Fiat & Spot** page, this may mean you have them working or lying in Binance's **Futures**, **Funding**, **Cross** or **Isolated** **Margin**, **USDⓈ-M** or **COIN-M Futures**, **Options**, or **Isolated Margin** features.\ \ For either of them, click **Transfer** as you enter their respective pages to get your ETH into **Fiat & Spot**. {% hint style="info" %} Before that, ensure your **ETH** is not engaged in any leveraged trades. {% endhint %} Here's how the button looks on the Wallet's **Futures** page:

You may also find it in the corresponding ETH row:

The **Transfer** pop-up will show up. Set **Futures**, **Funding**, **Cross** or **Isolated** **Margin**, **USDⓈ-M** or **COIN-M Futures**, **Options**, or **Isolated Margin** in **From** (depending on the feature your ETH is currently in), and Fiat & Spot in **To**. Select **ETH** in **Coin** if not selected automatically.

Input your amount and click **Confirm**.

**✅ Done! Now your ETH should be in your Binance Fiat & Spot wallet.** {% hint style="info" %} Such transfers between different wallet features are free on **Binance** and other CEXs. {% endhint %} ### About Bridging from Ethereum Mainnet {% hint style="warning" %} Please note that bridging from the Ethereum mainnet will cost you arm and leg, compared to L2 bridging, at least, especially now that the network activity is surging and the ETH price is experiencing increased volatility. We strongly advise using your CEX or L2-held for transferring to **Blast** to avoid unnecessary capital expenses. Who uses their ETH from the mainnet, are you okay? 🥲 {% endhint %} > Disclaimer > > The **Blastex** development team has no control over, nor is it related to the third parties providing blockchain-to-blockchain ETH transfer services and shall not be held accountable for any malfunction thereof.