Non-custodial
FDUSD settles straight to your wallet. U.CASH routes and notifies, it never holds your funds.
Accept FDUSD payments from any Ethereum wallet. Non-custodial checkout; U.CASH prices the invoice at the live dollar rate.
Merchants choose U.CASH to take FDUSD without giving up custody or control.
FDUSD settles straight to your wallet. U.CASH routes and notifies, it never holds your funds.
Offer fiat cards through your own merchant account in the same checkout, side by side with FDUSD.
Your logo, colors, and domain. The payment surface is yours; U.CASH is just the rails.
A flat fee per transaction, no spreads, no hidden routing cuts. You see exactly what you pay.
Anyone with a First Digital USD wallet can pay. No chargebacks, no geography holds.
You set what counts as paid. Tune the confirmation policy for FDUSD per store.
Sign up at U.CASH Pay and create a checkout that accepts First Digital USD alongside cards on 35 networks.
Send a Pay-Now link, drop in the universal embed, or call the API server-side.
The payer chooses First Digital USD from any wallet. U.CASH watches the chain against your confirmation policy.
Once confirmed, FDUSD settles on-chain to the address you control, with a signed webhook.
Live in minutes. Drop a button on any site, or call the API server-side.
Create checkouts server-side with signed, replay-safe webhooks. Build any flow.
A universal embed script and Pay-Now buttons for any website, no backend needed.
WooCommerce, Shopify, Magento, and 125+ integrations across the stack.
Email a Pay-Now link or a full invoice and get paid without a storefront.
Mobile POS apps and donation overlays for in-person and creator use.
Pay and pay out to ENS, Unstoppable Domains, and FIO handles, not raw addresses.
On-chain, peer to peer, direct to the wallet address you configured. No pooled balance.
First Digital USD default policy: Follows Ethereum (~12 confirmations). Adjustable per store.
Auto-forward to an xpub or address, or hold in your own wallet and withdraw anytime.
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Ethena's synthetic dollar; buy and sell via partner rails.
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.
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.
Non-custodial checkout for FDUSD and 35 networks, live in minutes.