An API is an interface which works between two different applications so that they communicate with each other and produce a result. API is an piece of application which is designed and developed with the proper coding.
Web API Services
Web API service is choosing the right API for the website to connect the two different areas of the website. Web API services make sure that the website run as per the client requirement. They integrate the various applications to give the flow to the user design.
Custom Module Integration
Custom module integration is the process of adding the module to the already built web design.Custom modules are designed not only to help clients easily manage their website, but also allow their clients or visitor to get matchless experience by allowing them to create their account, profiles etc.,