API is used to receive MO SMSs and send free/billed MT SMS in asynchronous way.
Receiving MO SMS and sending MT SMS is handled by two spearate HTTP/S GET requests.
myPAY system sends MO SMS data to client and receives OK as acknowledgement.
Client sends MT SMS data to myPAY system and receives OK as acknowledgement.
Statuses are sent by myPAY system to client asynchronously.

This API is suitable for subscription/recurring payments.
Swagger spec (BETA)