# "I do not have enough funds on any network"

## You need to purchase more ETH/USDC on Optimism to proceed. 

Here's how to easily fund your wallet with ETH on the Optimism Mainnet:

{% tabs %}
{% tab title="1. Coinbase" %}
The following process will be nearly identical for both Desktop and Mobile users: 

1. Set up a [coinbase.com](https://coinbase.com) account if you do not already have one
2. Go to [wallet.coinbase.com](https://wallet.coinbase.com)
3. Click **Buy**
4. Purchase enough ETH

   * We recommend funding your wallet with at least \~$135 USD worth of ETH, the additional $15 will be more than enough to cover gas fees for the purchase transaction and other domain management ([Configure your .box](/docs/configure-your-.box/got-a-.box.-whats-next.md)) transactions in the future
   * Select ETH as your **asset to add**
   * Input  $135 USD worth of ETH into the **Buy Ethereum** page and select your payment method
   * Click **Preview buy**
   * **\[IMPORTANT] select Optimism as the network.** Your Order preview page should look like this:

   <figure><img src="/files/uFtHfupUCh8yXbduapz2" alt=""><figcaption></figcaption></figure>

   * Click **Confirm** to complete your purchase
     * You may need to verify yourself via SMS code or other method depending on your security settings on Coinbase
       {% endtab %}

{% tab title="2. MetaMask" %}

1. Create a[ MetaMask wallet](https://metamask.io/download/) if you do not already have one
2. Open your MetaMask wallet Extension / Mobile App
3. **\[IMPORTANT]** Add and switch to the **OP Mainnet** network in your MetaMask wallet
   1. Click the dropdown menu that says **Ethereum Main Network** or **Ethereum Mainnet**
   2. Click **+ Add network**&#x20;
   3. Complete the Optimism Network Add & Switch process
      * Desktop users: Click **Add** next to **OP Mainnet** -> **Confirm** -> **Switch to OP Mainnet**
      * Mobile users: Tap **Add** Next to **Optimism**  -> **Confirm** -> **Switch to network**
4. Initiate the ETH purchase process
   1. Desktop users: Click **Buy & Sell**
   2. Mobile users: Tap the **↑↓** icon -> **Buy**
5. Purchase enough ETH
   * We recommend funding your wallet with at least \~$135 USD worth of ETH, the additional $15 will be more than enough to cover gas fees for the purchase transaction and other domain management ([Configure your .box](/docs/configure-your-.box/got-a-.box.-whats-next.md)) transactions in the future
   * Select your payment method and input  $135 USD worth of ETH into the buy quote page
   * **\[IMPORTANT]** Ensure your buy page looks like the screenshot below, with **Ether** denoted as being on the **Optimism Mainnet** network. If it says another network like Ethereum Mainnet or Base Mainnet, it needs to be switched to **Optimism**<br>

     <figure><img src="/files/FKBppae7y54LUzqNZGW7" alt=""><figcaption></figcaption></figure>
6. Proceed with the purchase, you will likely be sent to a MoonPay or Coinbase 'onramp' process where you can easily input your credit card or other payment methods to complete the funding process
   {% endtab %}
   {% endtabs %}

{% hint style="success" %}
We recommend transacting with ETH since it makes the whole process simpler. Because when using USDC, you'll need a bit of ETH anyway in order to pay gas fees.
{% endhint %}


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