A file that describes the Master REST API has been written following Open Api specification. This API description file can be downloaded there: optimserver.yaml
It has been used to generate some clients to query the Master REST API. Anyone could generate new clients (for other languages) for this file, if needed. Let us note that standard tools to send REST requests (like curl or Postman) are able to query the Master REST API as well.
Provided clients follow:
Any client needs a valid authentication token to access the Master API.