This article aims to raise the awareness to wider audience about a very good tool-- Enhanced EP tracker application during ACI daily operational. It would help detect and remediate stale endpoints (along with monitoring of rapid moving endpoints). You will find it extremely useful.
ACI-EnhancedEndpointTracker can be installed directly on the APIC as an ACI app or deployed as a standalone app.
You can install this via an OVA. The details are below:
OVA: https://cisco.app.box.com/s/6us23gzr8nwplrmtjmpp5xaos1wywa22
Documentation: http://aci-enhancedendpointtracker.readthedocs.io/en/latest/install.html#standalone-application