How to use Coinbase Smart Wallet and Base Account passkey onboarding

The Coinbase Smart Wallet, now known as the Base Account, replaces the seed phrase with a passkey for biometric onboarding. This shift follows 3.4 million ERC-4337 account abstraction deployments. I find the move away from seed phrase custody toward passkeys far more reliable for long-term users. Unlike the traditional Coinbase Wallet, which requires a 12-word phrase, the Smart Wallet uses a passkey stored on a device or a password manager. Users also access accounts through an email code. This change addresses the 70% churn rate that affects crypto applications in 2026. While many users struggle with the complexities of private keys, the Base Account utilizes passkeys to simplify access. This shift also supports users who prefer social sign-in methods. The industry is moving toward these more accessible onboarding flows.

Setting up and recovering the Base Account

To begin using the Base Account, you must download the Coinbase Smart Wallet app from the iOS App Store or Google Play Store. Once installed, the app provides instructions to create a new wallet or import an existing one. If you are new to the system, selecting "Create a New Wallet" prompts the setup of a strong password and enables biometric authentication. If you already hold a Coinbase wallet, the "Import Wallet" option allows for the secure transfer of your data. After setup, you must add funds by tapping the "Add Funds" button. You can then choose to deposit cryptocurrency from another wallet or buy cryptocurrency using a linked bank account or credit card. To use the wallet, tap the "Send" or "Receive" button and enter the required wallet address and amount. You can also navigate to the DeFi section to participate in staking, lending, or liquidity pools, or visit the NFT section to manage digital art. You likely already know that losing a seed phrase means losing everything, so I will focus on how passkey recovery works. If a user loses their device, they can use an email code to regain access. Coinbase also allows for an encrypted backup of the recovery phrase to iCloud or Google Drive. This backup requires a password that the user chooses. If a user forgets this password, they must test various combinations because Coinbase cannot reset it.

Technical architecture of Account Abstraction

Account abstraction uses modular components to manage transactions without the rigid constraints of a traditional Ethereum transaction. The ERC-4337 standard relies on Smart Contract Accounts (SCA) where code, not a single private key, controls the wallet. This system uses a UserOperation to package a user’s intent. Account Factory Contracts deploy these accounts on-demand when a user first wants to use a wallet. This process uses the initCode field in the first UserOperation and the CREATE2 opcode to make the address predictable. Bundlers act as couriers that collect these operations from an alt-mempool and submit them to the EntryPoint contract. The EntryPoint acts as the single, global, and trusted smart contract for the entire ERC-4337 system. It runs a two-phase process. First, it runs a verification loop to check signatures and nonces via the validateUserOp function. Second, it runs an execution loop to dispatch callData to the target smart account. Paymasters can also sponsor gas fees, allowing users to pay for transactions with tokens like USDC. Aggregators also assist by combining signatures from multiple UserOperations to save gas.

The transition to Native AA on Base reduces transaction costs because the protocol co-designs the transaction type rather than bolting it on top of the Ethereum Virtual Machine like the ERC-4337 standard does today. This method reduces gas for USDC transfers by 63.2% and for passkey-sponsored transactions by 56.1%. The use of CREATE2 allows the account address to exist before the code is deployed on-chain. Will the transition to Native AA on all EVM chains happen as quickly as Base predicts?

Industry retention and the UX shift

The crypto industry faces a significant retention problem as 70% of users leave within 30 days of first use. Onboarding friction from seed phrases and gas fees causes many users to depart during the first 72 hours, with a secondary cliff around the two-week mark. I find that products using account abstraction report higher completion rates for first-time user flows. Many firms are testing loyalty programs and gamification to keep users engaged. Some companies use streaks and achievement badges to reduce churn. However, the industry still struggles with the withdrawal of token incentives. When airdrops or liquidity mining programs end, users often leave the platform. This 2026 data shows that cohorts acquired through incentive programs churn at much higher rates than organic users. Companies must now focus on habit formation rather than just shipping code.