PacletFind
PacletFind["name"] gives a list of installed paclets that match "name".
PacletFind["name" -> "version"] gives a list of installed paclets that match "name" and "version".
PacletFind["name", <|prop1 -> val1, prop2 -> val2, ...|>] gives a list of installed paclets that match "name" and criteria given by the propi -> vali.
Examples
PacletFind["PacletManager"]PacletFind["*Data*"]Please visit the official Wolfram Language Reference for more details.