There is a tool called Diagnostics & Monitoring Tool, where you can see information regarding the executed statements, user sessions, memory usage etc. by providing logfiles managed by the Denodo Monitor.
I recommend you to check the [Diagnostics & Monitoring Tool Guide](https://community.denodo.com/docs/html/browse/7.0/vdp/dmt/index) for detailled information.
However, if you you want to publish the executed queries in a REST web service, you could access the vdp-queries.log directly, which is written by the [Denodo Monitor](https://community.denodo.com/docs/html/browse/7.0/vdp/administration/monitoring_the_virtual_dataport_server/denodo_monitor/denodo_monitors), by creating a Delimited File data source and a base view over that file and then publish it as a REST web service.
Hope this helps!