A real wallet for your B3 (Base) (B3)
B3 · Base networkLooking for a B3 (Base) wallet or a B3 wallet app that does more than just hold? Zypto App is a non-custodial multichain DeFi wallet where you can hold B3 on the Base network, swap into 24,000+ assets, connect to dApps, top up the Zypto Premium Visa Card, pay bills and buy gift cards. All from one app, with your keys staying on your device.
B3 (Base) (B3) in Zypto: built for holders who actually use their crypto
Most B3 (Base) wallets do one thing: hold B3. Zypto App is a full DeFi wallet built for actually using it. Hold B3 non-custodially on the Base network, swap into 24,000+ assets across 20+ chains via in-app DEX integrations, connect to dApps with WalletConnect, and use the value through the Zypto Premium Visa Card and Zypto's bill-pay and gift-card surfaces.
Whether you're new and looking for your first B3 (Base) wallet app or your first B3 wallet, or an experienced DeFi user who wants one wallet for holding, swapping and real-world spending, Zypto is built for both, without sacrificing self-custody.
From your first B3 to your first swap - Zypto walks the path
New to B3 (Base)? You don't need an exchange account to get a wallet. Download Zypto App, generate your recovery phrase, and you have a working B3 wallet in under a minute. Add your first B3 by receiving from another wallet, or by buying in-app where supported.
From zero to using B3 (Base)
Get the app
Download Zypto App on iOS or Android. Generate your recovery phrase. Your keys stay on your device.
Add B3
Receive B3 from another wallet, or buy in-app where supported.
Use it everywhere
Top up the Zypto Premium Visa Card, swap into other assets, pay bills, or buy gift cards.
Keeping your B3 (Base) safe - how Zypto handles security
Zypto App is non-custodial. Your private keys are generated and stored on your device. Zypto never has access to your B3, and every transaction is signed locally. For higher security, pair with the Vault Key Card, the card-based cold-wallet hardware that signs transactions over NFC without exposing keys to the internet.
What is B3 (Base)?
B3, traded as B3, is a gaming-focused blockchain built on top of Base, Coinbase's Ethereum Layer-2. It operates as a Layer-3 rollup using the OP Stack, settling to Base and ultimately to Ethereum, which gives it cheaper and faster transactions aimed at onchain games. It also runs a discovery platform, Basement.fun, for finding and playing Web3 games. The B3 token is used for governance, in-ecosystem commerce, and coordination across the network's products. B3 was created by a team that previously worked on Base, and the token launched in 2025 with a large maximum supply. As a young gaming-oriented network, its long-term value depends on games and players staying active on the chain, which is worth weighing before holding it. You can track the B3 price and hold B3 in a self-custody wallet.
Beyond holding: what your B3 (Base) can actually do
Every feature works directly with your B3 balance. No selling, no exchange roundtrips.
Use a Crypto Visa Card
Top up the Zypto Premium Visa Card with B3 and use it wherever Visa is accepted. Physical or virtual.
Crypto cardsPay bills with B3 (Base)
Settle utility bills and mobile contracts with billers worldwide, paid from your B3 balance.
Bill payBuy gift cards with B3
Gift cards from popular brands, paid in B3 (Base). Settle in-app, redeem instantly.
Gift cardsTop up any phone
Send mobile credit across many countries in seconds. Pay with B3, recipient gets local airtime.
Mobile top-upsCross-chain swaps
Swap B3 (Base) into 24,000+ assets across 20+ chains. No bridges, no second wallet, all in one tap.
Multichain walletVault Key Card cold storage
Card-based cold-wallet hardware. NFC-tap to sign B3 (Base) transactions, keys never touch the internet.
Vault Key CardPay via KuCoin Pay
Move and pay with B3 across the KuCoin Pay network, straight from your non-custodial Zypto wallet.
KuCoin PayPair B3 (Base) with these in the same wallet
Cross-chain swaps mean your B3 can become any of these in two taps.
662+ dedicated wallet pages
B3 (Base) (B3) wallet: the things people ask
What's the best B3 (Base) wallet app?
That depends on what you want to do with your B3. If you're holding only, any non-custodial wallet works. If you also want to use B3 (Base) for real-world spending through the Zypto Premium Visa Card, pay bills, top up phones, or swap into other assets, Zypto App is purpose-built for that while still being fully non-custodial.
Is the Zypto B3 (Base) wallet non-custodial?
Yes. Your private keys are generated and stored on your device. Zypto never has access to your B3. Every transaction is signed locally on your device before it reaches the network.
Can I use B3 (Base) for real-world spending without selling it?
Through the Zypto Premium Visa Card, your B3 balance is converted at the point of sale, so you use the value of your crypto for real-world spending wherever Visa is accepted, subject to eligibility and applicable limits. You can also swap B3 into stablecoins in-app for bill pay or gift cards.
Which chains can I swap B3 (Base) into?
20+ chains including Ethereum, Solana, Polygon, Arbitrum, Optimism, BNB Chain and TRON. Cross-chain swaps happen inside Zypto App, no separate wallets required.
How do I back up my B3 (Base) wallet?
During setup, Zypto App generates a 12-word recovery phrase. Write it down and store it offline somewhere safe. For higher security, pair Zypto App with a Vault Key Card, the card-based cold-wallet hardware that signs transactions over NFC without exposing your keys to the internet.
Is Zypto App available in my country?
The wallet itself is available globally on iOS, Android and web. Some features (in-app buying, the Zypto Premium Visa Card) are region-restricted. Check the support center for your country's specific availability.
Is Zypto App free?
The app is free to download and use. Standard network fees apply to on-chain transactions. Card and bill-pay services carry transparent transaction fees published in the app.
