The Rotronic Monitoring System offers two API functions, both using HTTP-POST requests:
API: An Application Program Interface (API) is a computing interface to a system that defines how other systems can use it.
HTTP-POST request: In web services POST requests are used to send data to the API server to create or update a resource. The data sent to the server is stored in the request body of the HTTP request.
HTTP: Hypertext Transfer Protocol is the underlying format that is used to structure request and responses for effective communication between a client and a server.
HTTP request: Is an action to be performed on a resource identified by a given Request-URL.