Yes, we do have API. You can find a separate tab on our site on the upper board called API.
You can download the reference document for Approval Studio API. Current version v.1.7 (6-9-2021) in PDF or HTML
What is API?
API stands for Application Programming Interface – generally speaking, a computing medium that puts two different applications on the same page and allows them to interact and communicate. This is a sort of common tongue that can unite different apps and make their usage more convenient. We know that people in the design industry work with numerous software solutions, and integrating all the applications into one environment is not always an easy task – not to mention that it is usually a pain in the neck. That is why creating a functional API for Approval Studio has been one of our priorities for a long time – we do want to help you make your workflow considerably easier!