EVA is a virtual assistant designed to improve pain management for hospitalized patients by allowing them to report moderate to severe postoperative pain through various channels, such as telephone, WhatsApp, or smart speakers. This automation streamlines the process by automatically recording pain incidents and notifying healthcare providers, thus saving nurses’ time. Additionally, EVA integrates with electronic medical records and has been instrumental in training a machine learning model to predict pain episodes, ultimately enhancing the efficiency of pain management. The tool primarily focuses on health areas related to injuries.