Hi @RameshSesetti,
Heatmap can be enabled if you have at least 3 Access Points as it uses the triangulation
Go to Wireless > Monitor > Location heatmap
In addition, Meraki has a marketplace for 3rd party tools that are confirmed can be integrated using APIs though take note those are not free as you need to have subscription with those 3rd party.
https://apps.meraki.io/
Cheers!
Terry
Terry VASQUEZ Jr.