To see body parameters for Checkout, click to expand the list below to see all the available endpoints.

Once the Customer completes the purchase, HelixPay handles the rest of the Subscription automatically. HelixPay automatically sends a payment confirmation to the Customer via email and SMS.

HelixPay automatically charges the Customer based on the frequency set in the Subscription. The Merchant does not need to trigger each recurring payment via API. HelixPay automatically triggers the recurring payment.

Subscriptions can be edited via API. Simply update the price parameter for the Products in the Subscription to adjust the price that the customer will be charged on the next billing.

See Integration Guide : Checkout Flow