Get Variable from Start/Home

sorry - I’m new at voiceflow - an I have the following question

is it possible to get a variable from the call of the skill - I make an example:

alexa, open “myskill” with “myvariable”
myvariable is a name of a device.
is it possible to get the “myvariable” as a variable in order to send this via API to another server. I would like to avoid a question in between.

thanx in avance