2. Choose a Coinbase Wallet username
As part of setting up your Coinbase Wallet, you will need to choose a username. This username lets other Coinbase Wallet users easily send you crypto. You can keep your username private, but you will need one to access the account.
3. Securely store your recovery phrase
When you create a new self-custody wallet, you'll be given a recovery phrase that consists of 12 random words. The recovery phrase is the key to your crypto, meaning anyone with your recovery phrase has access to your crypto. Do not share your recovery phrase with anyone.
We strongly recommend writing these down on paper and storing them securely, as well as using Coinbase Wallet's cloud backup feature.
Remember, do not share your recovery phrase with anyone. Coinbase will never ask you for your recovery phrase. And if you lose your recovery phrase, Coinbase cannot help you access your wallet.
5. Buy and transfer ETH to Coinbase Wallet
If you don’t have a Coinbase account, you’ll need to create one to buy Ethereum (ETH). Learn more about how to create a Coinbase account and buy Ethereum (ETH) . The way you transfer ETH to your Coinbase Wallet varies depending on whether you’re using the mobile app or the Chrome extension. See detailed instructions .
6. Use your ETH to buy O3 Swap in the trade tab
If you’re using Coinbase Wallet on your mobile phone, you can purchase O3 Swap right in the app. Tap on . Then tap on the “Trade” tab, where you can swap ETH for any token that runs on the Ethereum standard (called “ERC-20 tokens”). Tap “choose coin” and select O3 Swap. Input the amount of ETH you’d like to exchange for O3 Swap. Remember to leave enough for transaction fees. Confirm your purchase and follow the instructions on the screen to finalize.
If you’re using Coinbase Wallet extension, tap the “Convert” button. Search for O3 Swap and input the amount of ETH you’d like to exchange for O3 Swap. Remember to leave enough for transaction fees. Confirm your purchase and follow the instructions on the screen to finalize.