CloudSight - Image recognition API; send an HTTP request with an image, get a description of contents.
Google Arts & Culture - Explore collections of art and culture from around the world, both past and present.
Flico - Add visual search to your Chrome browser
Gratitude Flow - Gratitude Flow is a web extension that allows you to share and receive gratitude on your new tab with real people around the world.
Google Vision AI - Cloud Vision API provides a comprehensive set of capabilities including object detection, ocr, explicit content, face, logo, and landmark detection.
New Tab by Flickr - Get a beautiful photo each time you open a new tab