ACH Checkout

If this purchase is for a seller/submerchant where the marketplace takes a fee, this is the % fee which is taken from the subtotal amount.

This is a token encoding the parameters for the request. Allows purchase parameters to be verified to prevent manipulation when the checkout page is presented to the user.

Only authorize the purchase. This will not actually capture the payment.(default: false)

(Stellar only) Base64 XDR transaction string for executing a merchant contract call on a successful purchase.

For transaction purchases, pass the base64 XDR string created using .toXDR() on a transaction built with generated TypeScript bindings (e.g., NftClientWrapper.buildNftPurchaseTx).

For direct USDC transfers (no merchant transaction), omit this field or pass undefined.

Gas fees for the transaction will be automatically calculated and added to the total charged to the customer.

If utilizing USDC settlement to addresses other than your main merchant settlement address. Utilize this destinationAuthKey which is a JWT encoded with the information for which address to send the USDC to.

Token for the bankAccount to be used for the checkout.

If this debit is a subsequent charge (recurring/top-up/limit-order/ fair-market-value fill) under a previously submitted ACH authorization, pass that authorization's founding paymentId here so this debit is traceable back to the same authorization record.

The ID of the payment that was created.