U.CASH Swap is a non-custodial multi-chain DEX aggregator. It finds the best price for a token swap across the largest decentralized liquidity (every major EVM chain, Solana DEXes, and cross-chain bridges), and your own wallet signs the trade directly on-chain. A transparent all-in fee of 0.50% (0.35% U.CASH plus a 0.15% partner routing fee on aggregated routes) is taken from the swap output and shown before you confirm. An Instant mode adds Bitcoin and other non-EVM majors via vetted exchange partners.
How it works
Quote, confirm, settle on-chain
Connect your wallet
Click Connect Wallet and approve your EVM wallet (MetaMask, Rabby). Solana users connect Phantom or Solflare from the swap panel when Solana is selected.
Choose a pair and a chain
Pick the token you have and the token you want, on the source network. Want it on a different network? Set a destination and the swap routes cross-chain.
We fetch the best route
The aggregator queries EVM DEXs, Solana DEXs, and cross-chain bridges (cross-chain) and returns the best rate, route, and estimated network fees.
Review the details
You see the rate, price impact, route hops, network fee, and the U.CASH fee before you confirm. Nothing is hidden.
Your wallet signs
You approve the transaction in your wallet. For many trades this is a single transaction via the non-custodial router; ERC-20 sells use a gasless Permit2 signature.
It settles on-chain
The swap executes against the DEX and bridge contracts and the output lands directly in your wallet. An all-in fee of 0.50% is taken from the output.
Your wallet signs every swap directly on-chain. We never hold, custody, or control your funds, and there is no U Account that holds your crypto.
19 EVM chains + Solana
Route across Ethereum, Polygon, Arbitrum, Optimism, Base, BNB Chain, Avalanche, Linea, Scroll, Mantle, Berachain, Monad, Plasma, World Chain, Unichain, Ink, Sonic, Abstract, and HyperEVM, plus Solana via Solana DEXs.
Multi-aggregator routing
Quotes are compared across EVM DEXs, Solana DEXs, and cross-chain bridges (cross-chain) so you get the best rate, route, and estimated gas on every trade.
Single-transaction swaps
A stateless, owner-less, non-upgradable router wraps and swaps native coin in one transaction, and Permit2 enables gasless one-tx ERC-20 sells across the network.
Cross-chain bridges
Move value between networks with cross-chain bridges bridging. Set a different destination and the swap routes cross-chain, with execution time and bridge fees shown up front.
Transparent all-in fee
An all-in fee of 0.50% (0.35% U.CASH plus a 0.15% partner routing fee) is taken from the swap output and displayed before you confirm. Underlying protocol, gas, and bridge fees are shown separately.
Instant mode for Bitcoin
An Instant tab adds Bitcoin and other non-EVM majors (BTC, LTC, XRP, TRX, DOGE, BCH and more) via vetted exchange partners, with no wallet extension required.
Verify every contract
Every deployed router and the UCASH token contract are published on the Networks & Contracts page, each linkable to its on-chain explorer for independent verification.
Connect any wallet
Browser-injected wallets (MetaMask, Rabby, Brave) connect direct on desktop, while WalletConnect serves mobile via QR. Solana wallets connect from the swap panel.
How it fits in U.CASH
Swap and the rest of the network
Swap is the exchange; buy, bridge, and the shared account plug into it.
Any token20 chains
⇄EVM DEXsSolana DEXscross-chain bridges
Any tokenbest route
Buy - the buy.u.cash flow is the buy-UCASH mode of Swap, routed through the same aggregator rails
Bridge - cross-chain swaps run on cross-chain bridges exposed inside Swap
Pay - shared U.CASH SSO account; a signed-in user carries wallet and identity across
Agents - the same non-custodial, wallet-signed routing aligns with agent-pay rails
Portal - single sign-on issued by the portal, the same U Account across every app
Verify - every route touches only published, explorer-verifiable contracts and Permit2
FAQ
Questions, answered
Is U.CASH Swap custodial?
No. U.CASH Swap is a non-custodial DEX aggregator. Your own wallet signs every trade directly on-chain, and the swap settles against DEX and bridge smart contracts. We never hold, custody, or control your funds or private keys.
Which networks are supported?
The DEX rails cover 19 EVM chains (Ethereum, Polygon, Arbitrum, Optimism, Base, BNB Chain, Avalanche, Linea, Scroll, Mantle, Berachain, Monad, Plasma, World Chain, Unichain, Ink, Sonic, Abstract, and HyperEVM) plus Solana, with cross-chain routing between them. An Instant mode adds Bitcoin and other non-EVM majors.
What is the fee?
A transparent all-in fee of 0.50% applies on aggregated routes: 0.35% U.CASH fee plus a 0.15% partner routing fee, taken from the swap output and shown before you confirm. Liquidity pools, bridges, and your wallet may apply additional network, gas, or protocol fees, which are displayed separately.
How are single-transaction swaps possible?
For native-coin sells, a stateless non-custodial router (no owner, no upgrade, no storage) wraps native to wrapped-native and executes the swap in one transaction. For ERC-20 sells, Permit2 lets you approve once and authorize each swap with a gasless off-chain signature.
How does cross-chain swapping work?
Choose a different destination network for your output token and the aggregator routes via cross-chain bridges. You see the route hops, estimated execution time, and bridge fees before your wallet signs the source-chain transaction.
Can I swap Bitcoin?
Yes, via the Instant mode. It uses vetted exchange partners (vetted exchange partners) to cover Bitcoin and other non-EVM majors. The partner holds the funds and runs KYC for those trades; U.CASH acts solely as an introducer.
Swap anything, on every chain
Best price across 19 EVM chains, Solana, and cross-chain. Your wallet signs every trade.
