diff --git a/src/DigitalData.Auth.API/DigitalData.Auth.API.csproj b/src/DigitalData.Auth.API/DigitalData.Auth.API.csproj
index 3e34211..93cdca8 100644
--- a/src/DigitalData.Auth.API/DigitalData.Auth.API.csproj
+++ b/src/DigitalData.Auth.API/DigitalData.Auth.API.csproj
@@ -23,4 +23,8 @@
     <PackageReference Include="UserManager.Infrastructure" Version="3.0.1" />
   </ItemGroup>
 
+  <ItemGroup>
+    <ProjectReference Include="..\..\DigitalData.Auth.Abstractions\DigitalData.Auth.Abstractions.csproj" />
+  </ItemGroup>
+
 </Project>
\ No newline at end of file
diff --git a/src/DigitalData.Auth.API/Hubs/AuthHub.cs b/src/DigitalData.Auth.API/Hubs/AuthHub.cs
index 198f796..bb8a7ba 100644
--- a/src/DigitalData.Auth.API/Hubs/AuthHub.cs
+++ b/src/DigitalData.Auth.API/Hubs/AuthHub.cs
@@ -1,7 +1,16 @@
-using Microsoft.AspNetCore.SignalR;
+using DigitalData.Auth.Abstractions;
+using Microsoft.AspNetCore.SignalR;
 
 namespace DigitalData.Auth.API.Hubs;
 
-public class AuthHub : Hub
+public class AuthHub : Hub<IAuthClient>
 {
+    public async Task SendMessage(string user, string message)
+        => await Clients.All.ReceiveMessage(user, message);
+
+    public async Task SendMessageToCaller(string user, string message)
+        => await Clients.Caller.ReceiveMessage(user, message);
+
+    public async Task SendMessageToGroup(string user, string message)
+        => await Clients.Group("Auth.API Consumers").ReceiveMessage(user, message);
 }
\ No newline at end of file