Unattended Point of Sale

NMI has provided self-service card acceptance solutions for more than 20 years. We specialize in enabling convenient, secure unattended card payments for a variety of industries.

Adding a card payment option to unattended machines increases revenue compared to cash-only payments, and accepting only card payments significantly reduces costs. NMI provides simple, secure and exceptionally reliable unattended card payments and contactless EMV payment options for ticketing, parking, vending and kiosk operators.

The NMI Payment Device SDK for Windows and Linux lets developers integrate software with numerous payment terminals. The SDK abstracts many of the complexities of interacting with terminals so that you can focus on building great software.

For Windows developers, we have created a downloadable payment device emulator so you can be up and running without the need for a payment device. The Windows emulator SDK comprises:

Example client source code demonstrating simple integration for your own applications
Payment gateway integration guide and API documentation for Windows
Example server binaries that work with a Windows virtual payment device