Firebase provides the tools and infrastructure you need to develop apps, grow your user base, and earn money. The Firebase Admin .NET SDK enables access to Firebase services from privileged environments (such as servers or cloud) in .NET. Currently this SDK provides Firebase custom authentication support.

For more information, please visit the Firebase Admin SDK setup guide.


The Firebase Admin .NET SDK is available on Nuget as FirebaseAdmin. Use the following command to install it with the Nuget package manager:

$ Install-Package FirebaseAdmin -Version $VERSION

Or use the dotnet command-line utility as follows:

$ dotnet add package FirebaseAdmin --version $VERSION

Supported Frameworks

Admin .NET SDK supports the following frameworks:

  • .NET Framework 4.6.2+
  • .NET Standard 2.0
  • .NET 6.0+

This is consistent with the frameworks supported by other .NET libraries associated with Google Cloud Platform.

License and Terms

Firebase Admin .NET SDK is licensed under the Apache License, version 2.0.

Your use of Firebase is governed by the Terms of Service for Firebase Services.