You are here Retina API's Retina produces semantic fingerprints of any piece of text by encoding over 16000 semantic features to represent its inner meaning. Fingerprints can be easily compared numerically or used in expressions. Fingerprint anything that could be described with words like products, social network profiles, messages, emails or office documents to name a few. Then precisely compare Amazon products descriptions with LinkedIn profiles, tweets with Facebook timelines or job descriptions with CVs.