Web Services & API Integration with .NET Core

By Bernhard Balt · Last updated 2026-07-19

BALTech builds robust RESTful APIs and web services with .NET Core and ASP.NET – as a backend for your applications and as an integration layer between existing systems. From 18 years of software development, we know what makes interfaces stable.

Whether POS-to-webshop synchronization, connecting digital price displays or a government interface: we build integrations that hold up in production – with clean error handling, logging and monitoring.

Integration Services

RESTful APIs & Web Services

Robust APIs with .NET Core and ASP.NET as a backend for web and mobile applications.

POS & Webshop Sync

Real-time matching of products, inventory and prices between point-of-sale and online shop.

Hardware & System Integration

Interfaces to digital E-Ink price displays, mobile capture devices and government systems.

Technologies

.NET Core ASP.NET REST APIs MVC C# / VB.NET Web Services API MySQL / SQL Server PostgreSQL Docker CI/CD PHP POS / Webshop

Frequently Asked Questions

What kind of APIs do you build?

We build robust RESTful APIs and web services with .NET Core and ASP.NET – as a backend for web and mobile applications and as an integration layer between existing systems.

Can you connect our webshop to the point-of-sale system?

Yes. We build synchronization software between the point-of-sale system (POS) and online shop with automatic product matching, inventory management and real-time price adjustments.

Do you also connect hardware or third-party systems?

Yes. Among others we have implemented interfaces to digital E-Ink price displays, mobile capture devices and government systems (e.g. Austrian cash register security).

How do you ensure reliability?

Through clean architecture, clear error handling, logging and monitoring. Interfaces are built to stay stable even when the counterpart partially fails.

Discuss your project

Need an API or system integration? Let us talk about your project.

Get in touch