Amazon Rekognition - Add Amazon's advanced image analysis to your applications.
Google Vision AI - Cloud Vision API provides a comprehensive set of capabilities including object detection, ocr, explicit content, face, logo, and landmark detection.
PublicAPIs - Explore the largest API directory in the galaxy
CompreFace - CompreFace is a free face recognition service from Exadel that can be easily integrated into any system using simple REST API.
Imagga - Advanced image recognition technology wrapped in powerful API.
YOLO - Real-time object detection