MyPay™ Plug-in for Developers. Simple. Easy. Ready! We have developed standard ‘web integration plug-in scripts’ which we provide to developers for seamless integration to our Online Pay® Free Integration. No hidden fee. Built On Security Our payments APIs include end-to-end encryption, dispute management, fast deposits for merchants, and fraud detection. In-App Payment Customize the payment form UX to fit your mobile app’s look and feel. Take payments in a mobile app Easy Integration Ready made and easy to use API and SDK for developers. All our APIs & SDKs are free for developers to use.