Cloud Cart works with Magento 1 and 2.
How do I pair Magento 2?
You must enter your admin login, password, and URL on the Cloud Cart my connections page. Cloud Cart will receive a special token from your website, then remove the user name password from our database:
Does the Magento 1 and 2 integrations support the same features?
Yes, whatever you can do with Magento 1 you can do with Magento 2.