An API allows you to programmatically read or write information to one or more services. FileWave has a rich set of APIs to allow customers to build connections. There are also some vendors who produce integrations that use the FileWave API without you needing to work with the API directly.
Any time you want to extend what FileWave is capable of or integrate FileWave with other systems you may use APIs.
The articles linked to this article are a good starting point. Professional Services can also help with learning and using APIs.
How do I export the results of an Inventory query?
Using the RESTful API to limit, sort, and offset values returned
How to programmatically write the client device details (macOS) to a JSON formatted file using the FileWave REST API