Token · Optimism

Wrapped Bitcoin on Optimism (WBTC)

Wrapped Bitcoin (WBTC) is an ERC-20 token on Ethereum backed 1:1 by Bitcoin. It brings Bitcoin's liquidity into Ethereum's payments and DeFi, so Bitcoin value can move in Ethereum-native smart contracts. On Optimism, WBTC moves as a ERC-20 token: transfers pay Optimism network fees in ETH and settle with the network's own finality. Every U.CASH rail that runs on Optimism, from checkout to swap, supports WBTC natively on this chain.

Swap WBTC on Optimism → Buy WBTC

Open in the app: Swap · Buy · Get UCASH

Wrapped Bitcoin on Optimism at a glance

Network
Optimism
Standard
ERC-20 token
Block time
~2 seconds
Consensus
Optimistic Rollup (OP Stack)

WBTC transfers confirm with the Optimism network (~2 seconds blocks). Settlement on U.CASH is non-custodial: every payment and swap moves on-chain, direct to a wallet you control.

Wrapped Bitcoin on Optimism contract addresses

Wrapped Bitcoin on Optimism (WBTC) is a token. Always verify the address before trading.

Optimism0x68f180fcCe6836688e9084f035309E29Bf0A2095

Use WBTC on Optimism

Every action opens with WBTC already selected.

Swap WBTC

Best-price routing from Optimism into any asset, cross-chain included, in one signed transaction.

Open the swap →

Buy WBTC

Card or bank where the fiat rails serve Optimism, or swap from any asset you already hold.

Buy WBTC →

Get UCASH with WBTC

Pay WBTC from Optimism and receive UCASH, the U.CASH network token, non-custodial.

Get UCASH →

Related on U.CASH

Wrapped Bitcoin (WBTC)

Bitcoin as an ERC-20 on Ethereum.

Overview →

Wrapped Bitcoin on Arbitrum (WBTC)

Wrapped Bitcoin (WBTC) on Arbitrum.

Overview →

Wrapped Bitcoin on Avalanche (WBTC)

Wrapped Bitcoin (WBTC) on Avalanche.

Overview →

Wrapped Bitcoin on Base (WBTC)

Wrapped Bitcoin (WBTC) on Base.

Overview →

Optimism (ETH)

Ethereum L2 and home of the OP Stack.

Overview →

Wrapped Bitcoin on Optimism: FAQ

What is the WBTC contract address on Optimism?
0x68f180fcCe6836688e9084f035309E29Bf0A2095. It is the verified ERC-20 token deployment listed above with its explorer link. Always check the address before you trade or accept WBTC on Optimism.
How do I swap WBTC on Optimism?
Open swap.u.cash/wbtc-optimism and the pair arrives prefilled: WBTC on Optimism as the asset you pay. Pick what you want to receive, confirm the route, and your wallet signs one transaction.
How fast are WBTC transfers on Optimism?
Optimism runs Optimistic Rollup (OP Stack) with ~2 seconds blocks, and WBTC settles with the network. U.CASH watches confirmations per your checkout policy.
Can I move WBTC from Optimism to another network?
Yes. The same swap screen routes cross-chain in one signed transaction: choose a destination network and the router bridges alongside the trade, so the output lands as WBTC (or any asset you pick) on the other chain.
What does it cost to use WBTC on Optimism?
You pay the Optimism network fee in ETH for each transfer. Swaps carry a flat, transparent fee shown before you confirm; there are no spreads or hidden routing cuts.
Get started

Wrapped Bitcoin on Optimism, your keys

Swap, buy, and settle WBTC on Optimism non-custodial, straight to the wallet you control.

Swap WBTC on Optimism → Buy WBTC