The invention relates to a method for supporting a user when creating an application (10) for accessing IoT data by means of individual or multiple functions (14) comprised by a programming interface (12). While creating the application (10) or in combination with the creation of the application (10), user data (30) which characterizes the user and behavior data (32) are received and/or generated, and a tool (20) which is implemented into software automatically evaluates the user data (30) and the behavior data (32) during the creation of the application (10). On the basis of the data, a recommendation for at least one programming interface (12) function (14) which could be relevant to the user and the application (10) is automatically generated and displayed to the user in order to support the user.