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Payment Gateway is a bridge through which we transfer our money from one account to the company account when we are buying product or service of that company. Payment gateways are Braintree (PayPal), Stripe, Amazon Pay, 2CheckOut... etc. Payment gateway often consists of multi-level encryption that prevents any third party to participate in the transaction process. Payment Gateway releases payment to service provider every 3rd Day or 30th Day. Payment Gateways capture your payments after successful transaction.