Vendo is integrated with Cloudinary service for image manipulation and serving via their CDN.
API will return absolute image URLs, eg.
https://res-1.cloudinary.com/vendo-production/image/upload/grpelxqjwccqhmxaxagx
Now based on this URL you can perform all of the supported by Cloudinary transformations via URL, eg.
https://res-1.cloudinary.com/vendo-production/c_crop,h_200,w_300/grpelxqjwccqhmxaxagx
All of these are documented on Cloudinary website.