API Integration

API integration lets different systems automatically exchange data through application programming interfaces — for example, connecting payment gateways, logistics providers, LLMs, or existing enterprise systems.

It's a core part of most custom software development projects, covering payments, logistics, cloud services, LLMs, and IoT devices. A common misconception is underestimating the testing and debugging cost involved — integrating with existing systems is often the most underestimated part of a quote, and a common cause of project delays.