Question: I need an API that can automatically categorize and tag images for my e-commerce platform.

If you need an API to categorize and tag images automatically for your e-commerce site, Imagga is a good candidate. Imagga's image recognition API has a range of features, including image tagging, visual search and content moderation. It can categorize images automatically and even create thumbnails, and you can customize machine learning technology for your own categories. Pricing is based on the number of API calls, so it can work for businesses large or small.

Another contender is Ximilar, which offers AI-powered image recognition and visual search technology. It can automatically tag, describe, categorize and search images, and you can create your own custom models you can embed in your own system. It offers free and paid versions, supports several programming languages, and is geared for e-commerce, fashion and real estate.

If you want a more sophisticated visual analysis, check out Visionati. It offers image captioning, intelligent tagging and content filtering, among other abilities. Visionati's customizable API can provide detailed, nuanced descriptions of images, which is useful for digital marketing and data analysis. Its tiered pricing means it can handle projects large and small.