No chargebacks
ETH payments are final on-chain. No card-style disputes clawing funds back weeks later.
Pay any U.CASH merchant with Optimism. Your ETH settles final and direct from your wallet, with low fees and no chargebacks.
Crypto payments are final, global, and cheap. Optimism is a strong way to pay merchants directly.
ETH payments are final on-chain. No card-style disputes clawing funds back weeks later.
Pay any U.CASH merchant worldwide. No blocked regions, no currency conversion holds.
Network fees instead of card processing percentages, especially on efficient chains.
No card number to hand over. You sign a transaction from your own wallet.
Send to a web3 name (ENS, Unstoppable Domains, FIO) instead of a long address.
Merchants see your payment confirm quickly, then release goods or services.
Open a Pay-Now link, an invoice, or any U.CASH merchant checkout that accepts Optimism.
Select ETH as your payment method from the supported coins.
Send ETH to the merchant address, or web3 name, shown on screen.
The merchant watches the chain and releases your goods or services once Optimism confirms.
Any merchant running U.CASH Pay can take your ETH at checkout.
Pay a Pay-Now invoice or billing request in Optimism, straight from your wallet.
Support creators and causes with ETH, no intermediary taking a cut.
Pay merchants and converters face to face; they watch the chain for your payment.
Recurring billing handled per-cycle, settled direct to the merchant.
Pay agents per request over the HTTP-402 protocol using ETH.
The leading smart-contract blockchain and home of ERC-20.
Ethereum L2 built on the OP Stack.
Leading Ethereum L2 by activity.
EVM sidechain built for fast, cheap payments.
The original proof-of-work blockchain and largest cryptocurrency.
High-throughput EVM chain for consumer apps.
Final, low-fee, borderless payments direct from your wallet to the merchant.