Coinbase smart wallets: What they are and how they work

Setting up a crypto wallet used to mean writing down a recovery phrase, installing a browser extension, and hoping you never lost either. Coinbase smart wallets change that.

A Coinbase smart wallet is a self-custodial smart contract wallet designed to make accessing crypto and onchain activity as simple as signing into an app. It removes the need for seed phrases by using passkeys, which means you can get started in seconds without downloading anything extra.

This guide covers what a Coinbase smart wallet is, how it works, its key features, and how it compares to the standard Coinbase wallet.

What is a Coinbase smart wallet?

A Coinbase smart wallet is a browser-based, self-custodial crypto wallet that uses smart contracts to manage transactions and user access. Unlike a traditional crypto wallet, which relies on a private key or recovery phrase to authenticate you, a Coinbase smart wallet uses passkeys tied to your device, such as Face ID or a fingerprint, to verify your identity.

Here is how it differs from a traditional wallet:

• Authentication: Traditional wallets use a recovery phrase or private key. Coinbase smart wallets use passkeys, so there is no phrase to write down or store securely.
• Setup time: Traditional wallets can take several minutes to configure. A Coinbase smart wallet can be created in seconds directly from a browser.
• Blockchain support: Coinbase smart wallets are built for onchain activity and support assets like ETH, USDC, and other tokens on compatible networks.

The wallet is designed for people who want direct access to onchain crypto, decentralized applications (dapps), and Web3 activity without the friction of traditional wallet setup. It is a different product from the standard Coinbase wallet, which is covered in the comparison section below. For more background on the account abstraction technology that makes this possible, see the CoinTracker explainer.

Key features of Coinbase smart wallets

Coinbase smart wallets are designed to improve usability and lower the barrier to onchain activity. Key features include:

• Easy onboarding. No seed phrase, no browser extension, no app download required. You create a wallet directly in a browser using a passkey on your device.
• Self-custody and control. You hold your own private keys. Coinbase does not control or have access to your funds.
• dapp integration. The wallet can connect to and interact with decentralized applications (dapps) across supported onchain networks.
• Two-factor authentication. Passkey authentication adds a layer of security tied to your device, reducing the risk of unauthorized access.
• Multi-asset support. The wallet supports ETH, USDC and other onchain assets.
• Gasless transactions. Coinbase smart wallets can support sponsored transactions, meaning fees may be covered by the app you are using in certain cases.

How does a Coinbase smart wallet work?

Coinbase smart wallets rely on two underlying technologies: smart contracts and account abstraction. Together, these allow the wallet to behave differently from a standard externally owned account (EOA).

In a traditional crypto wallet, a single private key controls your account. If you lose it, you lose access. A smart wallet replaces that model with a smart contract that governs the account. This contract can define custom rules for authentication, recovery, and transaction approval.

Account abstraction, enabled by the ERC-4337 standard, is what allows the smart contract to act as a wallet without needing to rely on a traditional private key for every transaction. This is what makes passkey authentication possible and what enables features like gasless transactions and social recovery.

The result is a wallet that is more flexible and user-friendly than a traditional EOA, while still being self-custodial and onchain.

How to use a Coinbase smart wallet

Getting started with a Coinbase smart wallet is straightforward. Here is a basic setup flow:

1. Download or open the wallet app. Coinbase smart wallets can be accessed through the Coinbase app or directly in a supported browser without a separate download.
2. Create your account. Follow the prompts to set up your wallet. You will use a passkey tied to your device, such as Face ID or a fingerprint, instead of a recovery phrase.
3. Save your recovery options. While there is no traditional seed phrase, you should set up any available account recovery options in case you lose access to your device.
4. Transfer crypto to your wallet. Once set up, you can send ETH, USDC or other supported assets to your wallet address.

To find your smart wallet later, open the Coinbase app or visit the wallet interface in your browser and sign in with the passkey associated with your account. Your wallet address and transaction history will be accessible from there.

Coinbase smart wallet vs. Coinbase wallet

These are two different products with different user experiences. Understanding which one fits your needs depends on how you use crypto.

Smart wallet

• Custody: User controls private keys via passkeys.
• Use case: NFTs, DeFi, onchain activity, and Web3 apps.
• Audience: Users who want direct onchain access without the friction of traditional wallet setup.
• Authentication: Passkeys tied to your device. No seed phrase.
• Setup: Browser-based, no extension or app required.

Coinbase wallet

• Custody: User controls keys, but the Coinbase app provides the interface and access.
• Use case: Trading, buying, selling, and managing crypto.
• Audience: Beginners and users primarily buying or selling through Coinbase.
• Authentication: Recovery phrase required for full self-custody.
• Setup: App or browser extension download required.

For a broader look at self-custodial options, the CoinTracker guide to the best Web3 wallets covers how different wallet types compare.

Upside and downside of Coinbase smart wallets

Smart wallets offer real improvements over traditional setups, but they come with tradeoffs worth understanding.

Upside

• Unified access. One wallet can connect to dapps, hold multiple asset types, and support onchain activity across supported networks.
• Browser convenience. No extension or app download required. You can access your wallet from any supported browser using your passkey.
• Improved security. Passkey authentication is tied to your device and harder to phish than a traditional password or recovery phrase.

Downside

• Hot wallet risk. The wallet is connected to the internet, which means it carries more risk than a hardware or cold wallet for holding large amounts of crypto.
• Self-managed recovery. You are responsible for your own account recovery. Coinbase cannot recover your wallet or funds if you lose access and have not set up recovery options.
• Transaction fees. While gasless transactions are possible in some contexts, standard onchain activity may still involve fees depending on the network and application.

How CoinTracker supports Coinbase smart wallets

CoinTracker supports Coinbase smart wallets, so you can sync your onchain activity and keep your transaction history organized for tax time. As part of the CoinTracker and Coinbase partnership, users can connect their wallets and have their transactions automatically imported and categorized.

Once connected, CoinTracker tracks your ETH, USDC, Bitcoin, and other onchain assets across transactions, calculates your gains, losses, and income, and helps you generate tax reports when you need them.

Add your Coinbase smart wallet to CoinTracker to bring your onchain transaction history into one place and stay organized for tax season.

Disclaimer: This post is informational only and is not intended as tax advice. For tax advice, please consult a tax professional.