Is there any API from Smart things for adding device

Hi Support Team,
My team wants to know about an API from Samsung Smart things for adding the devices.

Welcome to the SmartThings Community, @Ajay_Singh!

Are you trying to integrate a device for personal use? What kind of device is it? Zigbee, Z-Wave, LAN, Wi-Fi

Hi Nayelyz,
I want to add all types of devices on my platform using Smart things API.
Does Samsung provide any API to add devices?
I have found one SDK for adding the devices and I want to know more about how it works. I am pasting the link below, please have a look:

There’s a similar post where we discuss this and where I provided some extra info. Please, share with me the details of your questions about how the integration works: