Swap

Swap First Digital USD (FDUSD)

Swap FDUSD on Ethereum with non-custodial routing. One signed transaction; the output settles to your wallet.

How to swap First Digital USD

Step 01

Wallet first

Open the swap with the wallet holding the asset you will spend, or the FDUSD you already have.

Step 02

Set both sides

Choose what you are paying with and select First Digital USD as the output, on any of 35 networks.

Step 03

Approve the quote

The router presents its best route and price; one signature accepts it.

Step 04

Output lands

Your FDUSD arrives on-chain at the receiving address you set.

How First Digital USD swaps on U.CASH

First Digital USD swaps on the U.CASH non-custodial DEX. The routing engine scans every pool for the best price and bridges across networks, all in one signed transaction. Your wallet signs every swap and the output settles on-chain to an address you control.

Non-custodial DEXBest-price routingCross-chain bridgesSingle-transaction swaps

Why swap First Digital USD here

Routing that competes

Connected DEXs, bridges, and exchanges bid for your flow in effect; the best net output executes.

Sign and done

ERC-20 swaps collapse into a single signed transaction once approval is set.

Network hops included

Cross-chain movement for FDUSD is quoted alongside the same-chain routes.

Nothing hidden

The flat fee sits on the output where you can see it; spreads and routing cuts do not exist here.

Custody stays home

Output settles on-chain to your own addresses. No platform wallet in the path.

Aisles of pairs

From FDUSD into thousands of assets across the supported roster.

Before you start

Getting started takes a wallet and an address. The wallet needs to hold First Digital USD and a little FDUSD for gas on its chain; the address is where the output lands, raw hex or a resolvable web3 name both work. From there the flow is preview-first: what leaves, what arrives, the fee, and the network cost all sit on one screen before a signature happens. Keys never leave your side at any point, and the only thing the wallet ever signs is the exact transaction you read.

Fees and settlement

Two costs, both visible up front. The platform charges a flat 0.50% all-in on the swap and nothing hidden behind it, no spread and no routing cut. The network charges its gas in FDUSD, settling with settles with Ethereum blocks on ERC-20 on Ethereum (issuer: First Digital), itemized per leg in the preview. What settles is on-chain to the address you chose, under this asset's policy of Follows Ethereum (~12 confirmations), and once confirmed the balance is entirely yours to move with no platform anywhere in the path.

Underneath, the aggregated DEX route executes the trade with all-or-nothing semantics: partial fills do not exist here, and a route unable to meet the bounds you approved reverts the whole transaction rather than settling something worse. Your exposure window between legs is therefore zero, the only cost of a failed attempt is its gas, and re-quoting is a click.

Tokenized assets price from their issuer's own feed rather than a crypto market, so the quote tracks the underlying's session, and transfer eligibility follows the issuer's on-chain rules: the contract enforces them at settlement, which is why the checkout asks buyers to confirm eligibility once. These assets are not card-buyable; acquisition runs through the swap rail, and the fee structure above applies unchanged. What the wrapper adds is exposure with wallet speed, not brokerage machinery: no deposit account, no settlement lag between deciding and holding. Holders keep the same options as any token: send it, spend it where it is accepted, or swap back out the way they came in, and every movement carries the chain's own finality with it.

Swapping First Digital USD: FAQ

Is swapping FDUSD non-custodial?
Yes. Your wallet signs every swap; U.CASH never holds the tokens.
What does swapping First Digital USD cost?
A flat 0.50% all-in on the swap plus the network gas, both shown in the quote before you sign. No spread, no routing cut, no settlement surprise.
How fast does a First Digital USD swap settle?
At the chain's pace: settles with Ethereum blocks on ERC-20 on Ethereum (issuer: First Digital), with the platform acting on the stated confirmation policy. The preview shows the expectation with the quote.
Can I swap First Digital USD cross-chain?
Yes: routes that cross networks are quoted alongside same-chain ones, and where First Digital USD exists on several chains the engine moves between its native forms through liquidity rather than pooled custody.

Swap more than First Digital USD

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Ethena USDe (USDe)

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Popular FDUSD pairs

Every pair has its own page: route, fees, steps, and the swap preselected on open.

FDUSD to USDTUSDT to FDUSDFDUSD to USDCUSDC to FDUSD

Swap First Digital USD your way

One signature, every venue compared, output to the wallet you choose.