Investigate the opportunity to use the Eclipse data Connector
Basically, instead of the semantic bus or handmade alignment of APIs, we could use the EDC Connector (like https://github.com/sovity/edc-extensions) to handle the data contract agreement negociation and part of the data transformation.
There is no explicit trade-off on data format using an EDC, it can be anything.
So, still unclear where it could be used.