diff --git a/DiscordBot/CommandHandler.cs b/DiscordBot/CommandHandler.cs
index 475997a..cbee1af 100644
--- a/DiscordBot/CommandHandler.cs
+++ b/DiscordBot/CommandHandler.cs
@@ -18,6 +18,7 @@ namespace DiscordBot
         private readonly ButtonHandler _buttonHandler;
         private readonly SelectMenuHandler _selectMenuHandler;
         private readonly ModalHandler _modalHandler;
+        private readonly UserHandler _userHandler;
 
         // Retrieve client and CommandService instance via ctor
         public CommandHandler(DiscordSocketClient client, CommandService commands, HttpService httpService)
@@ -29,6 +30,7 @@ namespace DiscordBot
             _buttonHandler = new ButtonHandler(_httpService);
             _selectMenuHandler = new SelectMenuHandler(_httpService);
             _modalHandler = new ModalHandler(_client, _httpService);
+            _userHandler = new UserHandler(_client, _httpService);
         }
 
         public async Task InstallCommandsAsync()
@@ -37,6 +39,7 @@ namespace DiscordBot
             _client.ButtonExecuted += _buttonHandler.Handler;
             _client.SelectMenuExecuted += _selectMenuHandler.Handler;
             _client.ModalSubmitted += _modalHandler.Handler;
+            _client.UserJoined += _userHandler.HandleUserJoined;
         }
     }
 }
diff --git a/DiscordBot/CommandHandlers/UserHandler.cs b/DiscordBot/CommandHandlers/UserHandler.cs
new file mode 100644
index 0000000..26bc301
--- /dev/null
+++ b/DiscordBot/CommandHandlers/UserHandler.cs
@@ -0,0 +1,37 @@
+using Discord;
+using Discord.Commands;
+using Discord.WebSocket;
+using System.Reflection;
+using DiscordBot.Services;
+using SharedClasses.SharedModels;
+using DiscordBot.Messages;
+
+namespace DiscordBot.CommandHandlers
+{
+    public class UserHandler
+    {
+        private readonly DiscordSocketClient _client;
+        private readonly HttpService _httpService;
+        private readonly HandlerFunctions _handlerFunctions;
+
+        public UserHandler(DiscordSocketClient client,HttpService httpService)
+        {
+            _client = client;
+            _httpService = httpService;
+            _handlerFunctions = new HandlerFunctions(_httpService);
+        }
+
+        public async Task HandleUserJoined(SocketGuildUser user)
+        {
+            if((await _httpService.GetUserRenameServers()).Contains(user.Guild.Id))
+            {
+                if(await _httpService.DoesUserExist(user.Id))
+                {
+                    ApiRaid.Role.User apiUser = await _httpService.GetUser(user.Id);
+                    await HandlerFunctions.RenameUser(_client, user.Id, apiUser.UserName, apiUser.AccountName, new List<ulong>(){user.Guild.Id});
+                }
+            }
+        }
+
+    }
+}
\ No newline at end of file
diff --git a/DiscordBot/Services/HttpService.cs b/DiscordBot/Services/HttpService.cs
index 06e06a1..01a0507 100644
--- a/DiscordBot/Services/HttpService.cs
+++ b/DiscordBot/Services/HttpService.cs
@@ -171,5 +171,21 @@ namespace DiscordBot.Services
             }
             return new List<ulong>();
         }
+
+        public async Task<ApiRaid.Role.User> GetUser(ulong userId)
+        {
+            var httpClient = _httpClientFactory.CreateClient(Constants.HTTP_CLIENT_NAME);
+
+            var httpResponseMessage = await httpClient.GetAsync($"DiscordBot/GetUser/{userId}");
+
+            if (httpResponseMessage.IsSuccessStatusCode)
+            {
+                using var contentStream =
+                    await httpResponseMessage.Content.ReadAsStreamAsync();
+
+                return await JsonSerializer.DeserializeAsync<ApiRaid.Role.User>(contentStream, _serializerOptions);
+            }
+            return new ApiRaid.Role.User();
+        }
     }
 }
\ No newline at end of file
diff --git a/Lieb/Controllers/DiscordBotController.cs b/Lieb/Controllers/DiscordBotController.cs
index 1a2653f..962f2f7 100644
--- a/Lieb/Controllers/DiscordBotController.cs
+++ b/Lieb/Controllers/DiscordBotController.cs
@@ -184,5 +184,23 @@ namespace Lieb.Controllers
         {
             return _discordService.GetUserRenameServers();
         }
+
+        [HttpGet]
+        [Route("[action]/{userId}")]
+        public ActionResult<ApiRaid.Role.User> GetUser(ulong userId)
+        {
+            LiebUser user = _userService.GetLiebUser(userId);
+
+            if(user != null)
+            {
+                return Ok(new ApiRaid.Role.User(){
+                    UserId = user.Id,
+                    UserName = user.Name,
+                    AccountName = user.GuildWars2Accounts.FirstOrDefault(a => a.GuildWars2AccountId == user.MainGW2Account, new GuildWars2Account()).AccountName
+                });
+            }
+
+            return Problem("user not found");
+        }
     }
 }
\ No newline at end of file