Sell a product, a file or a seat without building a cart.
Create a checkout session, redirect, and get a signed webhook the moment the money lands.
THE PROBLEM
A single charge should not need
a payments team.
Selling one thing once still drags in a cart, a session store, PCI scope, a tax rate per country and a fraud policy. For most teams that is weeks of engineering to collect a payment the buyer completes in nine seconds, for a product nobody has bought yet.
THE SOLUTION
One call returns a link that sells.
Suby’s checkout takes an amount and returns a hosted page that already handles wallets, 3-D Secure, 200+ local methods, crypto and tax. As merchant of record, Suby is the seller on the record: the VAT is ours to file and the chargeback is ours to fight. You confirm delivery from a signed webhook, and are paid out in your bank or stablecoins.
A single charge,
without the plumbing.
No cart, no session store, no PCI scope, and no tax table to maintain per country.
CRYPTO
USDC and SOL sit next to the card field. The buyer picks and you are paid out in USDC either way.
WEBHOOKS
payment.succeeded is signed with a rotating secret and retried until your endpoint confirms.
One-time payments in practice.
Who this is for
Indie makers selling a file, a template or a licence
SaaS teams charging for a one-off setup or an add-on
Creators selling a course or a digital download
Anyone who needs a payment link before they need a store
Use cases
Sell a digital product from a link in a bio, with no site
Charge an onboarding fee
Accept USDC for a one-off invoice
Refund part of a charge without touching the rest
Four steps, start to finish.
Create the session
Pass an amount, the methods you accept and a success URL.
Redirect the buyer
Suby renders the checkout, collects the payment and handles every failure state.
Confirm on the webhook
Grant access from payment.succeeded, never from the redirect. A redirect can be faked.
Refund if needed
Call refunds.create with the payment ID. The money returns on the rail it arrived on.
Related pages
What one-time payments works with.
Suby lets you accept cards, Apple & Google Pay, Klarna, crypto and more, all into one unified balance. Withdraw to your bank in your own currency, or to your wallet in stablecoins.
