# Getting Started with the SDKs
source: https://developer.mastercard.com/mastercard-merchant-presented-qr/documentation/device-sdks/getting-started-sdks/index.md

The Mastercard Merchant Presented QR SDKs adhere to the [EMV® QR Code Specification for Payment Systems (EMV® QRCPS) Merchant-Presented Mode 1.1](https://www.emvco.com/specifications/emv-qr-code-specification-for-payment-systems-emv-qrcps-merchant-presented-mode/). It will be helpful to go through this document before working with the SDKs.

To use these SDKs, you must be a registered participant in the MPQR program, see [Before You Start](https://developer.mastercard.com/mastercard-merchant-presented-qr/documentation/server-apis/getting-started/index.md#before-you-start).