Linea is an Ethereum Layer 2 zk-rollup. It uses zero-knowledge proofs to bundle transactions and settle them on Ethereum, keeping fees low while staying fully EVM-compatible so existing wallets and contracts work unchanged.
ZK Rollup (settles to Ethereum). Settlement on U.CASH is non-custodial: every payment moves on-chain, direct to a wallet you control. Confirmation policy for Linea: Credited once the L2 transaction is confirmed; deeper finality when the zk-proof settles on Ethereum..
A single U.CASH account works across accept, swap, and buy. Pick where to start.
Take ETH in checkout alongside cards and 30+ chains. White-label, non-custodial, live in minutes.
Trade ETH for any asset across the network, routed for the best price.
Get ETH with any asset you hold, one step, settled to your wallet.
Receive, hold, and settle ETH your way.
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.
DeFi-focused OP Stack Ethereum L2.
Modular Ethereum L2 with fast, cheap blocks.
One account unlocks accept, swap, buy, and the rest of the U.CASH network across 30+ chains.