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Coinbase Wrapped BTC (CBBTC) is a tokenized representation of Bitcoin issued by Coinbase, giving holders BTC-denominated exposure on the Ethereum network. Traders often swap into or out of CBBTC to move Bitcoin value into Ethereum-based DeFi protocols or to exit positions back into native BTC or stablecoins. Because CBBTC is pegged to BTC price, its exchange rate closely tracks Bitcoin's market movements.
CBBTC operates exclusively on Ethereum, so you must send and receive it using an Ethereum-compatible wallet address — sending to a non-EVM address will result in permanent loss of funds. Unlike some multi-network tokens, there is no network selector to worry about here, but you should confirm your receiving wallet supports ERC-20 tokens before initiating the swap. Ethereum network congestion can influence how quickly your transaction is picked up and settled, so confirmation times may vary depending on on-chain conditions at the time of your swap. Zest displays the exchange rate and estimated output amount before you confirm, letting you review the deal — including any applicable fees — prior to committing. Given that CBBTC tracks Bitcoin's price, rate quotes can shift between the time you initiate and the time you confirm, so reviewing the final rate screen carefully is worthwhile.
Yes, Zest supports swaps between CBBTC and BTC where liquidity is available for the pair. Because CBBTC is an ERC-20 token and native BTC is a separate blockchain asset, the exchange involves a cross-asset route, so the output amount and rate are shown clearly before you confirm. Always verify your Bitcoin receiving address carefully, as BTC transactions are irreversible.
CBBTC runs on Ethereum, so your receiving address must be a standard Ethereum (ERC-20 compatible) address starting with '0x'. Hardware wallets, MetaMask, and most non-custodial Ethereum wallets support this format. Do not use a Coinbase exchange deposit address unless you have confirmed it accepts ERC-20 tokens.
CBBTC is issued and backed by Coinbase, making the custodian and minting process distinct from other wrapped BTC products. The backing model and redemption process depend on Coinbase's infrastructure rather than a decentralized custodian consortium. For swapping purposes the key practical difference is that CBBTC is an ERC-20 token with its own contract address, so double-check you are sending to or from the correct CBBTC contract when interacting with DeFi platforms.
Minimum swap amounts depend on the specific trading pair and prevailing network conditions. The exact minimum for your chosen CBBTC pair is displayed in the exchange widget before you confirm, so you can verify it without guessing.
Zest does not require account registration or email signup for standard CBBTC swaps. The exchange is non-custodial, meaning your funds are not held by Zest during the process. In some circumstances regulatory requirements may apply, but for most standard swaps no signup is needed.