All 27 emotions, in addition to neutrality, are available. The largest dataset of emotions in the world was used to create this API.
These emotions are admiration, amusement, anger, annoyance, approval, caring, confusion, curiosity, desire, disappointment, disapproval, disgust, embarrassment, excitement, fear, gratitude, grief, joy, love, nervousness, optimism, pride, realization, relief, remorse, sadness, surprise, and neutral.