Pangeanic's Sentiment Analysis tool is customizable, powerful and efficient technology for automatically extracting positive or negative opinions from written text. It can be tuned to detect specific emotions (strong dislike or liking, fear, anger, disgust, etc.) from unstructured textual information. It is an API prepared for immediate analysis within sentences (fragments) or for batch processing of texts and documents. Pangeanic's Sentiment Analysis tool can also be used for other purposes, such as document opinion classification and review rating prediction tasks.