Hi,
https://service.tib.eu/ts4tib/ is a Terminology Service (TS) building on the OLS software system, including an API that is OLS compatible.
While OLS is mainly targeting the life-sciences, the ts4tib provides a Terminologies for many more disciplines.

We'd like to submit a PR that will add the TS to OntoMaton.
TS API Documentation: https://service.tib.eu/ts4tib/swagger-ui.html

Yours,
Steffen