deriv LSK ETT STT aSTA ALPH OLDHOMEPAGE NEWHOMEPAGE
If you google for
hyderabad sanskrit tools
you find the Department of Sanskrit Studies, University of Hyderabad. The machine there can show all the verbs from a root. Also all nouns from a nounbase.
This is more accurate than the inria grammar but more inconvenient to use, so I use inria first and then come to this one if inria appears to fail.