I am trying to figure out how the new version of GCM or Firebase Cloud Messaging works so I moved one of my projects to the new Firebase console, If I did not have the API KEY or I want to create a new one... where can I do it?
It's in https://console.firebase.google.com/project/(your-project-id)/settings/cloudmessaging
You can find the API KEY in:
(gear-next-to-project-name) > Project Settings > Cloud Messaging
Server Key is the API key.