Stablecoin checkout for an existing SaaS billing system
A SaaS product with its own billing system does not need a second checkout built around a raw wallet address. UCashier adds a stablecoin payment layer to the existing invoice: you keep control of the customer, plan, and entitlement logic while adding one hosted payment link.
Keep your billing system
Create a payment order using your invoice or subscription ID as the merchant order number. The response includes the amount due and a hosted cashier link. Redirect the buyer to the complete payUrl returned by the API. The cashier shows USDT on TRC or ERC, or USDC on ERC only, together with the network, address, and time remaining. Do not construct the cashier URL from individual order fields.
Funds go to your receiving address
The buyer’s stablecoins go directly to the receiving address configured in the dashboard and are not pooled with other merchants’ payments. Activate the subscription, seat, or usage credit only after verifying the webhook signature. If the webhook is delayed, use the query API to confirm the order status.
Fees
There is no account-opening or monthly fee. Successful payments are charged from 0.5% of the settled amount, using the tier shown in the dashboard. If you later pay partners from the same merchant account, payout fees follow the dashboard and are deducted from merchant balance, not the on-chain receiving address.
Start with Quickstart and the payment API. If the same account also pays affiliates, see agent payouts. Games with an existing store can use the same cashier for top-ups.