What are SDKs?
A Software Development Kit (SDK) is a collection of tools that simplifies and streamlines the process of creating programs and applications. Nexi offers programmers and developers these tools to ease the software development process, enabling faster development of solutions.
Using the SDKs is not mandatory; it's a choice made by the developer, especially if their E-commerce platform is developed in one of the programming languages supported by the Nexi SDKs.
For more information, see here.