For a deeper look into our Elektron API, look into:
Overview | Quickstart | Documentation | Downloads | Tutorials | Articles
Hello @christian.klaut
The Machine Readable News (MRN) is the real-time news that publishes over Elektron. The application cannot filter specific query as Elektron always sends all updates data (news headline and story) to consumer.
The application can check the language of news data from "language" property of the parsed JSON message.
Please find more detail in CHAPTER 5 REAL-TIME NEWS DATA MODEL of MRN Data Models and Elektron Implementation Guide page.
The other APIs that support the News query filter are the REST API such as Refinitiv Data Platform APIs and RKD API.