Coinbase Wrapped BTC (cbBTC) is a Bitcoin-backed ERC-20 on Base, issued by Coinbase with 1:1 BTC in custody and 8 decimals, matching Bitcoin's own. It brings Bitcoin liquidity into the Base ecosystem for trading and DeFi. On U.CASH, cbBTC swaps through the instant-exchange network on Base, and eSend transfers move it to any recipient.
Straight into the app: Swap CBTC · Buy CBTC · Get UCASH with CBTC
ERC-20 token on Base. Settlement on U.CASH is non-custodial: every payment moves on-chain, direct to a wallet you control. Confirmation policy for Coinbase Wrapped BTC: Follows Base (~2 second blocks).
A single U Account works across accept, swap, and buy. Pick where to start.
Take CBTC in checkout alongside cards on 35 networks. White-label, non-custodial, live in minutes.
Trade CBTC for any asset across the network, routed for the best price.
Get CBTC with any asset you hold, one step, settled to your wallet.
Bitcoin as an ERC-20 on Ethereum.
Ethereum L2 built on the OP Stack.
The original proof-of-work blockchain and largest cryptocurrency.
The largest US-dollar stablecoin, live on Ethereum, Tron, and BNB Chain.
Two things and you are ready. A wallet that can hold Coinbase Wrapped BTC and a little cbBTC for gas on its chain, and the receiving address you want the output delivered to, which can be a raw address or a web3 name where the wallet resolves one. The preview shows the full picture before anything is signed: what leaves, what arrives, the fee, and the network cost. Nothing in the flow asks you to hand over keys; the wallet stays yours and signs only what you approved on screen.
Count the costs on one hand. On the platform side a flat 0.50% covers the swap, all-in, stated in the quote with no spread or routing cut behind the number. On the network side, gas in cbBTC, settling with settles with Base blocks on ERC-20 token on Base, shown per leg before signature. Settlement runs on-chain to your chosen address at this asset's policy, Follows Base (~2 second blocks), and from confirmation onward the balance answers to your keys alone, spendable, sendable, and settled with no platform anywhere in the path.
Execution runs through an instant integration, which means the number you approved is the number that happens or the transaction reverts: swaps are atomic, with no half-settled state to unwind and no exposure window between legs. If a route cannot fill at your approved bounds it fails cleanly and you re-quote, which is the failure mode you want, cheap and loud rather than silent and expensive.
One account unlocks accept, swap, buy, and the rest of the U.CASH network across 35 networks.