It depends what you mean by validating the Mendix project architecture.
You may want to use a tool like AQM. This performs a static analysis of your Mendix application models according the ISO 25010 standard for maintainability
https://docs.mendix.com/addons/aqm-addon/
There is also APM to monitor performance, and ATS for testing your application.
https://docs.mendix.com/addons/apd-addon/
https://docs.mendix.com/addons/ats-addon/