Bookings from travellers abroad, paid into your own wallet.
Sardium adds a white-label checkout to your booking pages. The traveller pays by card or a local payment method through a licensed payment provider, the stablecoin lands in the traveller's own wallet, and the traveller sends the payment to yours. We never hold the funds.
Travel is paid early and delivered late. Cards make that hard.
Paid now, travelled later
A trip is often paid weeks before it starts. Card acquirers can read that gap as risk, which can mean reserves, delayed payouts or a refused account.
Disputes after the trip
A traveller can dispute a card payment after the holiday is over. The agency answers for a service it has already paid its suppliers for.
Collecting from clients abroad
Travellers book from many countries. Taking their money by international bank transfer adds steps, waiting and charges on both sides.
Three steps. The funds never rest with us.
The buyer pays by card
The checkout sits in your site, with your brand. The buyer pays by card or a local payment method through a licensed payment provider, which handles the card and the identity checks (KYC).
The stablecoin goes to the buyer's own wallet
The provider delivers USDC or USDT to a self-custody wallet that belongs to the buyer. Only the buyer holds its keys.
The buyer pays you
The buyer signs the payment from that wallet and sends it to your self-custody wallet. Sardium never holds or touches the funds; it runs the checkout and sends you signed webhooks.
What your agency gets
Your agency's name at checkout
The checkout carries your colour and your name, so it reads as part of your booking flow.
Booking money in your own wallet
Payments arrive as USDC or USDT in a self-custody wallet you control. What you do with them next is your decision.
A page per deposit or balance
The checkout takes the amount and currency you pass, so a deposit and the final balance can each have their own payment page.
Each booking confirmed by webhook
Signed webhooks tell your booking system when a payment arrives, and every transfer can be checked on chain.
Questions, answered honestly.
Who holds the funds?
No one in the middle. The card payment is processed by a licensed payment provider, the stablecoin lands in the buyer's own self-custody wallet, and the buyer signs and sends the payment to your self-custody wallet. Sardium holds neither fiat nor crypto at any stage.
Does the buyer need a crypto wallet already?
No. The checkout gives the buyer a self-custody wallet of their own, and only the buyer holds its keys. The stablecoin arrives there first, and from there the buyer pays you.
Can a traveller pay for an expensive trip this way?
Purchase limits are set by the licensed payment provider and depend on the traveller's country and verification. Tell us your usual booking size when you apply, and we will tell you plainly whether it fits.
What if the buyer disputes the card payment?
The card purchase is between the buyer and the licensed payment provider, and a dispute about it is handled there, under the provider's rules. What reaches you is a stablecoin transfer the buyer signed from their own wallet. A card network cannot reverse a transfer on chain, so a refund to the buyer is one you decide on and send. Consumer law where you sell still applies to you.
How do cancellations work?
Your cancellation terms stay your own. The booking money sits in your wallet, so a refund is a transfer you send back to the traveller.
Which stablecoins and networks can I receive?
USDC and USDT on Polygon, Base, Arbitrum and Optimism.
What do I need to start?
A registered business, a self-custody wallet address on a supported network, and business verification (KYB) with us. Fill in the application form and we will guide you through it. Some lines of business cannot be served; the application page lists them.
Bring a crypto checkout to your agency.
Fill in the application form; we will guide you through business verification (KYB).
Request access