Interac e-Transfer Checkout (New Contact)

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.

(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.

Merchant Identifier

Consumer email address. Optional — used to create the Coinflow customer record. Also used as the Interac payin handle when phone is not provided.

Consumer phone number. Optional — when provided, the Interac payin request is sent to the phone instead of the email.

Consumer first name. Required.

Consumer last name. Required

The ID of the payment that was created.

The email the Interac e-Transfer request was sent to, if applicable.

The phone number the Interac e-Transfer request was sent to, if applicable.