What is Application Programming Interface (API)?

Application Programming Interface (API) acts as a bridge that allows various applications to communicate with one another. It serves as an intermediatory layer allowing data transfer across systems allowing businesses to open their application data and functionality to third party developers, business partners or internal department across their organization.

When an application needs information, it sends an API request to the target system using methods such as GET to retrieve data or POST to submit data. The target system processes the request and returns an appropriate response, enabling seamless data exchange and integration between application.