Non-custodial
S settles straight to your wallet. U.CASH routes and notifies, it never holds your funds.
Accept S and ERC-20 payments on Sonic with non-custodial checkout and sub-second finality.
Merchants choose U.CASH to take S without giving up custody or control.
S 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 S.
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 Sonic wallet can pay. No chargebacks, no geography holds.
You set what counts as paid. Tune the confirmation policy for S per store.
Sign up at U.CASH Pay and create a checkout that accepts Sonic alongside cards on 35 networks.
Send a Pay-Now link, drop in the universal embed, or call the API server-side.
The payer chooses Sonic from any wallet. U.CASH watches the chain against your confirmation policy.
Once confirmed, S 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.
Sonic default policy: Credited once the transaction finalizes on-chain, typically well under a second.. Adjustable per store.
Auto-forward to an xpub or address, or hold in your own wallet and withdraw anytime.
The leading smart-contract blockchain and home of ERC-20.
Ethereum L2 built on the OP Stack.
Leading Ethereum L2 by activity.
EVM sidechain built for fast, cheap payments.
EVM L1 with Proof-of-Liquidity consensus.
Fast-finality EVM chain with sub-second settlement.
The setup is deliberately short. One wallet capable of holding Sonic and a little S for gas on its chain, one receiving address for the output, and you have everything: a web3 name resolves to the address just as well as the raw string. Read the preview before signing, since it carries the whole trade at a glance, the amounts in and out, the fee, and the network cost. The wallet remains yours throughout and signs nothing you have not seen on screen, which is the whole security posture in one sentence.
The cost picture is two lines. The platform side is a flat 0.50% all-in on the swap, quoted before you sign, with no spread and no routing cut behind it. The network side is gas paid in S, settling with sub-second finality blocks on Proof-of-Stake DAG (ABFT), which the preview itemizes per leg. Settlement is on-chain to the address you chose: Credited once the transaction finalizes on-chain, typically well under a second. on this asset, after which the balance is spendable and non-custodial in the fullest sense, yours to move with no platform in the path.
The route runs on the aggregated DEX route, and atomicity is the property that matters: the approved number either happens in full or the transaction reverts with nothing moved but the attempt's gas. There is no resting state between legs where value sits in someone else's hands, and a route that misses your bounds simply fails clean, ready for a fresh quote. Cheap and loud beats silent and expensive as failure modes go.
Non-custodial checkout for S and 35 networks, live in minutes.