Google Firebase Realtime - No Project IDs available

Describe the issue/error/question

Hello guys, I hope you are very well

I’m trying to use the Google Firebase Realtime node, it successfully connects via OAuth2:

But when I want to select a project, it doesn’t show me the list, I even put the project ID manually and it doesn’t work either (In my Firebase account I have 5 projects, however, in the list it does not show me any)

When I hover over the alert icon I get this message:

Reading the N8N documentation on OAuth I see that there are services that require the API to be enabled, I already have the Firebase RealTime API enabled

Does anyone else have this happen or know the solution?

Thank you!

What is the error message (if any)?


There was a problem loading the parameter options from server: “Forbidden - perhaps check your credentials?”

Information on your n8n setup

  • n8n version: 0.218.0
  • Running n8n via [Docker, npm,, desktop app]: Docker

Hey @JoelGaribay,

It was a bit more complicated than I had expected but I have managed to get it working.


For me the first thing I did was add the Firebase Realtime Database API to my existing n8n project then I went to make a new Firebase project which didn’t work then I noticed Google had kindly created a new project for me so I had to configure the API access for that once that was done I authenticated with it and I still couldn’t see anything and I just had a blank list and it turned out I had not added a database to my Firestore project once that was done everything started working.

Anyway… The first thing I would check is that the Google oauth credentials is for the same Google Project that your firestore app is in, If that is all good it would then be a case of making sure the user account has access to it and that the correct region is set.

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