How to set up a Coinbase Wallet username? (cb.id Tutorial)

Understanding Coinbase Wallet Username Basics

1. A Coinbase Wallet username, also known as a cb.id, is a human-readable identifier that replaces long cryptocurrency wallet addresses.

2. This username functions as a permanent alias tied to your Ethereum address and works across all EVM-compatible chains supported by Coinbase Wallet.

3. Unlike traditional usernames on social platforms, cb.id names are registered on the Ethereum blockchain using the Ethereum Name Service (ENS) infrastructure.

4. Each cb.id is unique and cannot be duplicated; once claimed, it remains associated with the registering wallet unless explicitly transferred or abandoned.

5. The registration process requires a small amount of ETH to cover gas fees and an annual renewal fee denominated in ETH.

Prerequisites Before Claiming a cb.id

1. You must have the official Coinbase Wallet mobile app installed on iOS or Android — browser extensions or desktop versions do not support cb.id setup.

2. Your wallet must contain sufficient ETH to pay for both the one-time registration transaction and the recurring yearly renewal cost.

3. You need to ensure your wallet is unlocked and connected to the Ethereum mainnet — testnets like Sepolia are not eligible for cb.id registration.

4. Two-factor authentication should be enabled on your Coinbase Wallet account to prevent unauthorized access during the naming process.

5. No prior ENS domain experience is required, but familiarity with basic wallet interactions improves confidence during confirmation steps.

Navigating the cb.id Registration Flow

1. Open the Coinbase Wallet app and tap the profile icon in the top-right corner to access account settings.

2. Select “cb.id” from the menu options — this opens the dedicated naming interface powered by ENS.

3. Enter your desired username in the search field; real-time availability checks display whether the name is taken or reserved.

4. If available, tap “Register” and review the displayed ETH cost — includes gas and first-year registration fee.

5. Confirm the transaction using your wallet passcode or biometric authentication; the registration completes once the Ethereum transaction is mined.

Managing and Securing Your cb.id

1. After registration, your cb.id appears under the “Profile” section and auto-populates whenever you initiate a send or receive action.

2. You can update the wallet address linked to your cb.id at any time through the “Manage” option inside the cb.id settings.

3. Renewal reminders appear seven days before expiration; failure to renew results in loss of control over the name after the grace period ends.

4. Ownership is verified cryptographically — only the private key holder of the associated Ethereum address can initiate transfers or updates.

5. Coinbase Wallet does not store your private key; therefore, recovery of a lost cb.id depends entirely on securing your seed phrase and wallet access.

Frequently Asked Questions

Q: Can I use my cb.id to receive tokens other than ETH?Yes. Once set, your cb.id resolves to your Ethereum address across all ERC-20, ERC-721, and ERC-1155 tokens on EVM-compatible networks supported by Coinbase Wallet.

Q: Is there a character limit for cb.id names?Yes. Valid cb.id names must be between 3 and 20 characters long and may only contain lowercase letters, numbers, and hyphens — no spaces or special symbols.

Q: What happens if I lose access to my wallet after registering a cb.id?If you lose your seed phrase and cannot restore your wallet, you permanently lose control over your cb.id since ownership is bound to the private key of the original Ethereum address.

Q: Can I transfer my cb.id to another wallet?Yes. From the cb.id management screen, select “Transfer ownership” and enter the recipient’s Ethereum address. The transfer requires signing a transaction with your current wallet.