In transactions between a consumer and a merchant (or other third party) using services of a payment provider (e.g., credit card company, or financial services provider), methods and systems are provided for enabling any third party to accept chip and PIN payment and payment provider services using a payment provider device that is enabled using the third party's own application (referred to herein as “app”) and not the app of the payment provider. Enabling a merchant to accept chip and PIN payments usually requires the merchant to certify (accredit) their application (e.g., a point-of-sale (POS) system) end to end with the payment providers (e.g., Visa, MasterCard). A software development kit (SDK) modification to the application allows the merchant to accept chip and PIN cards the without the need to certify the application. The SDK includes the functionality that needs to be certified, and certifies it once with a service provider.