VMware NSX
VMware Aria Operations for Networks
VMware vCenter Server
VMware vSphere ESXi
AGENTCAP mib files do not convey actual APIs, only relate what VERSION of an ESXi, NSX, VCVA supports what VERSION of a MIB file (IF-MIB, VMWARE-SYSTEM-MIB, etc).
To resolve this issue, download and extract the VMware SNMP MIB Module "VMware-mibs-8.10.0NX-24235044.zip" file attached in this article.