Rosto.io is face recognition API. It detects and predicts plenty of facial features such as landmarks, smile, glasses, age, gender, emotion. All of them using end-to-end machine learning.
Kairos - Facial recognition & mood detection API
Google Vision AI - Cloud Vision API provides a comprehensive set of capabilities including object detection, ocr, explicit content, face, logo, and landmark detection.
Ximilar - Ximilar is a Computer Vision platform that allows you to build and train Deep Learning models for Image Recognition, Detection, and Visual Search. Allows you to download a model for offline usage or connect to them via API.
OpenCV - OpenCV is the world's biggest computer vision library
Amazon Rekognition - Add Amazon's advanced image analysis to your applications.
VISUA - We are the Visual-AI people. Providing industry-leading enterprise computer vision technologies, including Image Recognition, Object & Scene Detection and more. We believe Visual-AI liberates people and brands to do, create and discover more.