This will depend on the way your back-end and your current image or video handling works.
We have worked hard to make the API simple and straightforward to use. You could be up and running in 5 minutes. In some cases we have had users who took a few days to perform a deeper integration.
Most of the time, users need no more than a few hours to be live. Because we handle all the Image Processing and Analysis on our end, and because we can easily hook into existing image stores such as Amazon S3, Azure blobs, Cloud Storage or any CDN, most of the work is usually to adapt your Image Handling and Moderation pipeline.
We're always looking for advice to help improve our documentation!