Partner rail

First Digital USD (FDUSD) on U.CASH

First Digital USD (FDUSD) is a US dollar stablecoin issued by First Digital Labs in Hong Kong, reserved 1:1 in cash and cash equivalents with attestations, redeemable for USD. On U.CASH, FDUSD sits in the partner-rail tier: buy it with card or bank and sell it back to fiat through the on-ramp network, delivered to your own wallet on Ethereum. Availability varies by provider and region.

Straight into the app: 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). Cards and bank rails run through partner providers; FDUSD settles on-chain to the Ethereum address you control. Availability varies by provider and region. Confirmation policy for First Digital USD: Follows Ethereum (~12 confirmations).

Use First Digital USD

A single U Account works across buy. Pick where to start.

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.

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's US dollar stablecoin, issued by Paxos; buy and sell via partner rails.

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.
Get started

Use First Digital USD your way

One account unlocks accept, swap, buy, and the rest of the U.CASH network across 34 networks.