Integration ZOHO Creator and ZOHO Calendar: is it possible?

Integration ZOHO Creator and ZOHO Calendar: is it possible?

Dear All,

We have a need for the following functionality: in Creator we have developed an application to register appointments for our clients and couple the appointment to an insurance 'voucher'. Furthermore, we indicate the therapist who is assigned to that appointment. Each appointment has a start date/time and duration.
We would like to be able to develop a Deluge script that gets fired when we save an appointment in Creator, that will create an appointment in Zoho Calendar for the assigned therapist, or indicate that the Creator appointment time and duration may conflict with the assigned therapists schedule.

If this link is not possible, we could write our own application that uses REST API to access Creator records, and then use a different set of REST API calls to create appointments in Zoho Calendar. The problem is that currently no API's exist for Zoho Calendar.

Does anybody know of other feasible alternatives?

Thanks in advance,

Regards,

Abe