Cross-chain · Ethereum → Base
Swap WBTC from Ethereum to USDC on Base
Swap WBTC from Ethereum to USDC on Base. Holders of wrapped bitcoin who need Circle's native USDC on chain 8453 spend WBTC and receive that dollar.
WBTC is an ERC-20, not bitcoin on the Bitcoin chain. You approve 0x2260FAC5E5542a773Aa44fBCfeDf7C193bc2C599 on Etherscan. It uses 8 decimals. A Bitcoin address cannot receive it. The dollars you receive are 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 on Basescan, Circle's native USDC, 6 decimals. USDbC at 0xd9aAEc86B65D86f6A7B5B1b0c42FFA531710b6CA is not the output. Gas to leave is ETH on chain id 1, about 12 seconds a block. Base needs its own ETH before the USDC can move. Import the native contract from Basescan. The USDbC row stays unchanged. Import the native USDC from Basescan on chain id 8453. The USDbC row stays unchanged. Confirm it on Basescan.
Not a Bitcoin withdrawal
Eight decimals in, six out, and not USDbC
ETH on both chains
A mainnet sale is enough for mainnet dollars
Legal
Risk disclosure
XAUConnect is a non-custodial swap aggregator. Digital assets are volatile and may lose value rapidly. Content on this page is educational and not investment advice. Verify every contract address on the official block explorer before approving a transaction.
Frequently asked questions
What is the best way to swap WBTC from Ethereum to USDC on Base?
WBTC is an ERC-20, not bitcoin on the Bitcoin chain. You approve 0x2260FAC5E5542a773Aa44fBCfeDf7C193bc2C599 on Etherscan.
Can the receiver be a Bitcoin address?
No. The output is Circle's native USDC on Base, 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913. The input is WBTC at 0x2260FAC5E5542a773Aa44fBCfeDf7C193bc2C599 on Etherscan, an ERC-20 with 8 decimals. Neither side is the Bitcoin network. Use an EVM address that can switch to chain id 8453.
Why does a small WBTC figure represent a large value?
WBTC uses 8 decimals, so a fraction of one token is a meaningful amount of wrapped bitcoin. The USDC you receive is set by the quote you sign, which this page does not fix. Read the minimum on that quote. The native USDC then displays with 6 decimals on Basescan.
What do I hold besides WBTC?
ETH on Ethereum, because chain id 1 will not take WBTC as a fee. ETH on Base after arrival, because native USDC will not pay chain id 8453. Blocks are about 12 seconds on the way out. Both ETH balances sit apart from the two token contracts.
Trade on XAUConnect
Open the swap page with this cross-chain route pre-selected, then connect your wallet on the source chain to quote and execute. You keep the keys.
Continue exploring
Related markets, guides & networks
Next pages on this subject. Read them before you trade.
Swap ETH
Swap Ether (ETH) on Ethereum, chain id 1. Gas is the same ETH you may be selling, so leave enough for the fee. WETH is a
Swap SHIB
Swap Shiba Inu (SHIB) on Ethereum. Ethereum quotes on XAUConnect, with the fee and the minimum you receive shown before
Swap DAI
Swap Dai Stablecoin (DAI) on Ethereum. Ethereum quotes on XAUConnect, with the fee and the minimum you receive shown bef
Swap BNB
Swap BNB (BNB) on Ethereum. Ethereum quotes on XAUConnect, with the fee and the minimum you receive shown before you sig
What is an automated market maker (AMM)?
AMMs replace order books with liquidity pools and a pricing formula. Constant-product math, why prices move per trade, a
How do cross-chain bridges work?
A bridge locks or burns an asset on the source chain and releases a different contract on the destination. You need gas
Build programmatically
Swap via API for bots and AI agents: quotes, builds, and cross-chain routes.