Yes, you will need a valid Google Maps API key to activate the Locate Me at Checkout extension on your Magento 2 store — this is a standard requirement for any Google Maps integration. Once you have the API key, the extension setup is straightforward with minimal configuration needed from the admin panel. MageDelight provides installation support to help you get the Google Map at Checkout extension up and running quickly, and the first year includes updates and support so you're covered after go-live.