A machine learning classifier trained to categorise claims about COVID-19 into 10 categories proposed by the Reuters Institute for the Study of Journalism - Public authority actions, policy, and communications; Community spread and impact; Medical advice and self-treatments; Claims about prominent actors; Conspiracy theories; Virus transmission; Virus origin and properties; Public preparedness, protests, and civil disobedience; Vaccines, medical treatments, and tests; Other. The service returns the most likely predicted class for each text