Yesssss! We do and it works for over 90 languages.
You can easily spot sentiment tab above the mentions:
However, it is still very challenging to detect sentiment of some posts because of sarcasm and general context of discussion - we're doing our best to make it as accurate as possible!
Mentions are analyzed using our state-of-the-art deep learning approach. Our neutral nets were trained on thousands of texts and articles to get a knowledge about human language and recognize sentiment in a pretty awesome way!
However! If you find any mistakes, pleeeeease let us know so we can improve our solution and serve you better!