The GrabzIt Node.js SDK by GrabzIt allows to interact with the API to access screenshot capabilities such as images, PDFs, and table captures. Resources include application key and secret in addition to Node.js examples.
Google Cloud Vision API is a REST API that will help developers analyse images like never before. It supports various features like Entity identification, Facial Detection, Landmark Detection, Logo Detection, OCR and Identifying Explicit content. It is available in Limited Preview for now.