The Autodesk Validation Tool for Docs (AVT) is an extension of the Autodesk Model Checker for Revit from the Autodesk Interoperability Tools. AVT uses the Autodesk Platform Services Design Automation Service for Revit and runs as a pay-per-result service to check Autodesk Revit models that reside on Autodesk Docs and BIM 360 Docs.