The Responders vendor is a Protectron operating at the Whitespring Resort in Appalachia.
Working at the Whitespring, the Responders vendor Protectron offers plans and other wares alongside other faction vendors.
Interactions with the player character
This vendor was added to the Whitespring Resort as part of patch 22.214.171.124.
The Responders vendor appears only in Fallout 76, introduced in the Wild Appalachia update.