Could you please check this forum post out?
We usually instrument the client application in Java that is calling WebSphere MQ.
The AppMon 2017 release notes indicate that we do support IBM WebSphere MQ 7,8. Our previous releases (6.3 and 6.5) do support versions 6 and 7.
If you need to gather more information, you could also use the community plugin and fast pack:
Hope that helps, please let us know if you need further information.