Any external call to our servers and any scheduled application call are considered API Requests. For instance, if you call the REST API from your application 10 times, that counts for 10 API requests. In the case of the Scheduled App, every time it executes it accounts for an API Request.
Internal calls are not counted towards you API Requests quota. All internal calls are free. For instance, if you call an iKnode Application from inside another iKnode Application, that is free.
You’ll be charged according to your plan. Each plan contains a section about “Additional API Request” and “Additional Storage” which explains the costs for quota extension. If you go over your plan’s quote too often, we recommend looking at the next plan.