Introduction. In the context of digitalization, the attention of scientists is shifting to solving issues of introducing research and innovation activities into the organization using modern information technologies, crowdsourcing technologies, acceleration programs, digital resources and systems. In the context of the study, it is possible to identify the potential of using digital educational ecosystems to solve the urgent problem of interaction between services and applications working together to expand and support the research activities of undergraduates.The purpose of the development of a prototype of a digital ecosystem of research and innovation activities of undergraduates based on microservice architecture. Materials and methods. The method of analyzing information sources using the aggregator of scientific publications (Lens.org ) and data analysis (VOSviewer). The modeling method. The methodology of functional modeling is used, designed to formalize and describe processes according to the IDEF0 standard. The REST architectural style is used for data exchange in the digital educational ecosystem. KEYWORDS Results. As a result, a prototype of the digital ecosystem of research and innovation activities of undergraduates was created, which is a single, interconnected, procedural system combining various necessary services and applications, it covers a range of pedagogical functions to expand and ensure the research activities of undergraduates. The organizational and pedagogical conditions for the use of the digital ecosystem in the process of training undergraduates have been clarified. Discussion and Conclusion. In the course of the conducted research, the pedagogical potential of digital educational ecosystems is substantiated on the basis of a new basis and previously identified emergent properties. The structure, technologies, and content of elements of the digital ecosystem using microservice architecture are determined