This contribution presents a system of independent software components meant to support the creation of ecosystems of interrelated language data (i.e. lexica linked to textual testimonies, concepts, metadata, bibliographic references, and other external lexical resources) according to the current state-of-the-art representational models for the semantic web. The system is implemented as a set of autonomous servers exposing Restful APIs that in principle can serve different frontend applications and use cases. In this work they serve the EpiLexO GUI application designed and geared to support scholars of ancient languages of fragmentary attestation in their studies. The development of both the back-ends and the front-end is still work-in progress, but a first version is ready for use.