X2Check API is the Application Programming Interface that Finsa makes available to our clients in order to ask our X2Check Sentiment Engine for sentiment-related tasks, predicted on the text source given as input.

The results are: (i) a polarity classification at document-level (overall sentiment), (ii) polarity classification at sentence-level (for each sentence), (iii) the identification of the main keywords in the text and (iv) topic-related sentiment.