Stablecoin

First Digital USD (FDUSD) on U.CASH

First Digital USD (FDUSD) is a US dollar stablecoin issued by First Digital Labs of Hong Kong, backed 1:1 by USD and cash equivalents with reserves attested by an independent accountant. On U.CASH you can accept FDUSD payments, swap it non-custodially, buy it with card or bank, and hold it in your own wallet.

Straight into the app: Swap FDUSD · Buy FDUSD · Sell FDUSD · Get UCASH with FDUSD

First Digital USD at a glance

Ticker
FDUSD
Type
Stablecoin
Launched
2023
Block time
settles with Ethereum

ERC-20 on Ethereum (issuer: First Digital). Settlement on U.CASH is non-custodial: every payment moves on-chain, direct to a wallet you control. Confirmation policy for First Digital USD: Follows Ethereum (~12 confirmations).

One coin, three ways to use it

A single U Account works across accept, swap, and buy. Pick where to start.

Accept First Digital USD

Take FDUSD in checkout alongside cards on 35 networks. White-label, non-custodial, live in minutes.

Swap First Digital USD

Trade FDUSD for any asset across the network, routed for the best price.

Buy First Digital USD

Get FDUSD with any asset you hold, one step, settled to your wallet.

First Digital USD contract addresses

First Digital USD (FDUSD) is a token. Always verify the address before trading.

USD rails and pegs

Which payment rails settle the US Dollar and which tokens track it, in one place.

US Dollar (USD) on U.CASH

Related on U.CASH

Tether (USDT)

The largest US-dollar stablecoin, live on Ethereum, Tron, and BNB Chain.

USD Coin (USDC)

A fully-reserved US-dollar stablecoin across EVM chains.

PayPal USD (PYUSD)

PayPal USD (PYUSD) is Paxos-issued dollar stablecoin on Ethereum: accept, swap and buy.

Ethena USDe (USDe)

Ethena's synthetic dollar; buy and sell via partner rails.

First Digital USD FAQ

What is First Digital USD (FDUSD)?
FDUSD is a US dollar stablecoin issued by First Digital Labs, reserved 1:1 in cash and cash equivalents with published attestations and redeemable for USD. It is an 18-decimal ERC-20 on Ethereum.
Can I buy FDUSD on U.CASH?
Yes, with card or bank transfer through the partner on-ramp network, delivered on-chain to the Ethereum address you provide. Availability varies by provider and region.
What is the FDUSD contract?
0xc5f0f7b66764F6ec8C8Dff7BA683102295E16409 on Ethereum. It is listed above with its explorer link; always verify before transacting.
Can I swap or accept FDUSD on U.CASH?
FDUSD is a partner-rail asset: buying and selling run through the on-ramp network. USDT and USDC cover the stablecoin swap and payment rails.
FDUSD, USDC or USDT?
All are dollar stablecoins on U.CASH. FDUSD is First Digital's (Hong Kong), USDC is Circle's and USDT is Tether's. Pick whichever you already hold; all price off the live dollar rate.
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Use First Digital USD your way

One account unlocks accept, swap, buy, and the rest of the U.CASH network across 35 networks.