The REST e-Box APIs are defined in a yaml files. You can have a pretty display of the API by putting the file content in the online swagger editor.
Message Registry Service
Service that allows an enterprise to consult the data of its own e-Box and an enterprise, authorized as a document sender, to publish to the e-Box of an enterprise or the e-Box of a citizen.
Enterprise Ebox Event Service
This is an API to interact with the events platform of the Belgian federal government.
Ebox Enterprise Federation Service
Service that allows to manage, at the central level of the Federation e-Box enterprise, both the enterprise’s preferences on the use of its e-Box that the list of message providers.