  Model-Driven Engineering (MDE) is a software engineering methodology focusing
on models as primary artifacts. In the last years, the emergence of Web
technologies has led to the development of Web-based modeling tools and
model-based approaches for the Web that offer a web-based environment to create
and edit models or model-based low-code solutions. A common requirement when
developing Web-based modeling tools is to provide a fast and efficient way for
model management, and this is particularly a hot topic in model-based system
engineering. However, the number of approaches offering RESTful services for
model management is still limited. Among the alternatives for developing
distributed services, there is a growing interest in the use of RESTful
services. In this paper, we present an approach to provide RESTful services for
model management that can be used to interact with any kind of model and can be
used to build a modeling platform providing modeling-as-a-service. The approach
follows the REST principles to provide a stateless and scalable service.
