diff --git a/TimetableDesigner.Backend.Services.Authentication/API/Endpoints.cs b/TimetableDesigner.Backend.Services.Authentication/API/Endpoints.cs
index 1bce858..22b1607 100644
--- a/TimetableDesigner.Backend.Services.Authentication/API/Endpoints.cs
+++ b/TimetableDesigner.Backend.Services.Authentication/API/Endpoints.cs
@@ -1,4 +1,5 @@
-using Microsoft.AspNetCore.Http.HttpResults;
+using MediatR;
+using Microsoft.AspNetCore.Http.HttpResults;
 using TimetableDesigner.Backend.Services.Authentication.Application.Commands.Register;
 using TimetableDesigner.Backend.Services.Authentication.DTO.API;
 
@@ -18,10 +19,10 @@ public static class Endpoints
         return app;
     }
 
-    public static async Task<Results<Created<RegisterResponse>, ProblemHttpResult>> Register(RegisterCommand command, RegisterHandler handler)
+    public static async Task<Results<Created<RegisterResponse>, ProblemHttpResult>> Register(RegisterCommand command, IMediator mediator)
     {
-        RegisterDto data = await handler.HandleAsync(command);
-        return Results.Created($"accounts/{data.Id}", data);
+        await mediator.Send(command);
+        return Results.Created($"accounts/0", null);
     }
 
     public static async Task<Results<Ok<AuthenticateResponse>, ProblemHttpResult>> AuthenticatePassword(AuthenticatePasswordRequest request)
diff --git a/TimetableDesigner.Backend.Services.Authentication/Application/Commands/Register/RegisterCommand.cs b/TimetableDesigner.Backend.Services.Authentication/Application/Commands/Register/RegisterCommand.cs
index 33f6676..21ce121 100644
--- a/TimetableDesigner.Backend.Services.Authentication/Application/Commands/Register/RegisterCommand.cs
+++ b/TimetableDesigner.Backend.Services.Authentication/Application/Commands/Register/RegisterCommand.cs
@@ -1,3 +1,5 @@
-namespace TimetableDesigner.Backend.Services.Authentication.Application.Commands.Register;
+using MediatR;
 
-public record RegisterCommand(string Email, string Password);
\ No newline at end of file
+namespace TimetableDesigner.Backend.Services.Authentication.Application.Commands.Register;
+
+public record RegisterCommand(string Email, string Password) : IRequest;
\ No newline at end of file
diff --git a/TimetableDesigner.Backend.Services.Authentication/Application/Commands/Register/RegisterHandler.cs b/TimetableDesigner.Backend.Services.Authentication/Application/Commands/Register/RegisterHandler.cs
index f2b2a97..49fbff7 100644
--- a/TimetableDesigner.Backend.Services.Authentication/Application/Commands/Register/RegisterHandler.cs
+++ b/TimetableDesigner.Backend.Services.Authentication/Application/Commands/Register/RegisterHandler.cs
@@ -1,8 +1,9 @@
-using TimetableDesigner.Backend.Services.Authentication.Database;
+using MediatR;
+using TimetableDesigner.Backend.Services.Authentication.Database;
 
 namespace TimetableDesigner.Backend.Services.Authentication.Application.Commands.Register;
 
-public class RegisterHandler
+public class RegisterHandler : IRequestHandler<RegisterCommand>
 {
     private readonly DatabaseContext _databaseContext;
     
@@ -11,8 +12,8 @@ public class RegisterHandler
         _databaseContext = databaseContext;
     }
 
-    public async Task<RegisterDto> HandleAsync(RegisterCommand command)
+    public async Task Handle(RegisterCommand command, CancellationToken cancellationToken)
     {
-        return null;
+        
     }
 }
\ No newline at end of file
diff --git a/TimetableDesigner.Backend.Services.Authentication/Program.cs b/TimetableDesigner.Backend.Services.Authentication/Program.cs
index 8944403..16b0d31 100644
--- a/TimetableDesigner.Backend.Services.Authentication/Program.cs
+++ b/TimetableDesigner.Backend.Services.Authentication/Program.cs
@@ -17,6 +17,7 @@ public static class Program
                                            .SetupSecurity()
                                            .SetupDatabase()
                                            .SetupValidation()
+                                           .SetupMediatR()
                                            .Build();
         
         if (app.Environment.IsDevelopment())
@@ -52,6 +53,12 @@ public static class Program
         return builder;
     }
     
+    private static WebApplicationBuilder SetupMediatR(this WebApplicationBuilder builder)
+    {
+        builder.Services.AddMediatR(x => x.RegisterServicesFromAssembly(typeof(Program).Assembly));
+        return builder;
+    }
+    
     private static WebApplication InitializeDatabase(this WebApplication app)
     {
         using (IServiceScope scope = app.Services.CreateScope())
diff --git a/TimetableDesigner.Backend.Services.Authentication/TimetableDesigner.Backend.Services.Authentication.csproj b/TimetableDesigner.Backend.Services.Authentication/TimetableDesigner.Backend.Services.Authentication.csproj
index 6d817d5..37d6399 100644
--- a/TimetableDesigner.Backend.Services.Authentication/TimetableDesigner.Backend.Services.Authentication.csproj
+++ b/TimetableDesigner.Backend.Services.Authentication/TimetableDesigner.Backend.Services.Authentication.csproj
@@ -10,6 +10,7 @@
 
     <ItemGroup>
       <PackageReference Include="FluentValidation" Version="12.1.1" />
+      <PackageReference Include="MediatR" Version="14.0.0" />
       <PackageReference Include="Microsoft.AspNetCore.OpenApi" Version="9.0.9" />
       <PackageReference Include="Microsoft.EntityFrameworkCore.Tools" Version="9.0.9">
         <PrivateAssets>all</PrivateAssets>