The API analyzes clinical images, dental charts, or relevant orthodontic data inputs. It detects and measures specific parameters outlined in the HLD index, such as overjet, overbite, missing teeth, diastema, crossbite, and crowding. Using predefined scoring rules, user needs to fill the HLD Form available and then the API calculates the total HLD score and returns it as structured output. This facilitates quick, objective, and standardized assessment for treatment eligibility.