What APIs and Credentials are really needed for Firebase Analytics?

Question

After making an app for Firebase Analytics in Firebase Console (as mentioned here: https://firebase.google.com/docs/android/setup) in old developers console (https://console.developers.google.com) for the respective project we get some APIs enabled automatically and some credentials:

API keys:

1. Server key (auto created by Google Service)
2. Android key (auto created by Google Service)

OAuth 2.0 client IDs:

3. Android client for xxx.xxx.xxx (auto created by Google Service)
4. Web client (auto created by Google Service)

Also there are 4 API enabled:

1. Google Cloud Messaging
2. Identity Toolkit API
3. Mobile Crash and Performance Reporting API
4. Token Service API.

What of these API and Credentials are really needed for Firebase Analytics? I mean, do we need "Web client (auto created by Google Service)" client IDs or "Server key (auto created by Google Service)" if I plan using Analytic only?

Answer 1

No, you don't need any of those to use Firebase Analytics.