diff --git a/app/DTO/Api/User/Response/UserShowDTO.php b/app/DTO/Api/User/Response/UserShowDTO.php
new file mode 100644
index 0000000..d8c95ab
--- /dev/null
+++ b/app/DTO/Api/User/Response/UserShowDTO.php
@@ -0,0 +1,23 @@
+<?php
+
+namespace App\DTO\Api\User\Response;
+
+use App\Models\User;
+use Spatie\LaravelData\Data;
+
+class UserShowDTO extends Data
+{
+    public function __construct(
+        public User $user,
+        public bool $isEditor
+    ){
+    }
+
+    public static function fromModel(User $user): self
+    {
+        return new self(
+            $user,
+            $user->id === auth()->id()
+        );
+    }
+}
diff --git a/app/Http/Controllers/Api/ChallengeController.php b/app/Http/Controllers/Api/ChallengeController.php
index 1937e2d..307265c 100644
--- a/app/Http/Controllers/Api/ChallengeController.php
+++ b/app/Http/Controllers/Api/ChallengeController.php
@@ -24,4 +24,14 @@ public function show(int $id): array
 
         return $this->challengeService->show($challenge);
     }
+
+    public function joinPersonal(): array
+    {
+        return [];
+    }
+
+    public function joinTeam(): array
+    {
+        return [];
+    }
 }
diff --git a/app/Http/Controllers/Api/UserController.php b/app/Http/Controllers/Api/UserController.php
index 50f907f..e8d68f1 100644
--- a/app/Http/Controllers/Api/UserController.php
+++ b/app/Http/Controllers/Api/UserController.php
@@ -19,7 +19,9 @@ public function __construct(
 
     public function show(int $id): array
     {
-        return User::query()->findOrFail($id)?->toArray();
+        $user = User::query()->findOrFail($id);
+
+        return $this->userService->show($user);
     }
 
     public function update(int $id, UserUpdateDTO $userUpdateDTO): array|JsonResponse
diff --git a/app/Services/Api/UserService.php b/app/Services/Api/UserService.php
index 940d217..7f51f77 100644
--- a/app/Services/Api/UserService.php
+++ b/app/Services/Api/UserService.php
@@ -8,6 +8,7 @@
 use App\DTO\Api\User\Response\UserAchievementPersonalDTO;
 use App\DTO\Api\User\Response\UserAchievementTeamsDTO;
 use App\DTO\Api\User\Response\UserChallengeDTO;
+use App\DTO\Api\User\Response\UserShowDTO;
 use App\DTO\Api\User\Response\UserTeamDTO;
 use App\Models\Team;
 use App\Models\User;
@@ -16,6 +17,11 @@
 
 class UserService
 {
+    public function show(User $user): array
+    {
+        return UserShowDTO::from($user)->toArray();
+    }
+
     public function achievement(Team $team, User $user): array
     {
         $achievementPersonal = $user->achievements()->get();
diff --git a/routes/api.php b/routes/api.php
index 5fb6e24..02dbd73 100755
--- a/routes/api.php
+++ b/routes/api.php
@@ -32,6 +32,8 @@
     Route::group(['prefix' => 'challenges'], static function () {
         Route::get('/', [ChallengeController::class, 'index'])->name('teams.index');
         Route::get('/{id}', [ChallengeController::class, 'show'])->name('teams.show');
+        Route::post('/{id}/joins/personal', [ChallengeController::class, 'joinPersonal'])->name('teams.joinPersonal');
+        Route::post('/{id}/joins/teams', [ChallengeController::class, 'joinTeam'])->name('teams.joinTeam');
     });
 });