Cloud API is the online API that provides access to various functions to generate PDF from HTML and HTML templates, QR Code and other barcode generation, data extraction from PDF, PDF to Text, PDF to CSV and JSON and many others.
Calls are counted per every single request to Cloud API. The monthly subscription limits the number of calls (i.e. number of requests to API) to the given number. There are no hard limits but we may charge for additional calls
Free subscription plan is free and does not require credit card or payment. If you need more calls and improved speed and technical support then you may upgrade to a paid subscription plan. On paid subscription plan the system bills you for the selected plan on monthly basis. You may cancel the subscription at any time and you will not be billed for further months.