diff --git a/backend/app/Http/Controllers/AuthController.php b/backend/app/Http/Controllers/AuthController.php
new file mode 100644
index 0000000..2459fb2
--- /dev/null
+++ b/backend/app/Http/Controllers/AuthController.php
@@ -0,0 +1,60 @@
+<?php
+
+namespace App\Http\Controllers;
+
+use App\Models\User;
+use Illuminate\Http\Request;
+use Illuminate\Support\Facades\Hash;
+
+class AuthController extends Controller
+{
+    public function register(Request $request)
+    {
+        $request->validate([
+            'name' => 'required',
+            'email' => 'required|email|unique:users',
+            'password' => 'required|min:6'
+        ]);
+
+        $user = User::create([
+            'name' => $request->name,
+            'email' => $request->email,
+            'password' => Hash::make($request->password),
+            'level' => 1,
+            'xp' => 0
+        ]);
+
+        $token = $user->createToken('api_token')->plainTextToken;
+
+        return response()->json([
+            'user' => $user,
+            'token' => $token
+        ], 201);
+    }
+
+    public function login(Request $request)
+    {
+        $request->validate([
+            'email' => 'required|email',
+            'password' => 'required'
+        ]);
+
+        $user = User::where('email', $request->email)->first();
+
+        if (!$user || !Hash::check($request->password, $user->password)) {
+            return response()->json(['message' => 'Invalid credentials'], 401);
+        }
+
+        $token = $user->createToken('api_token')->plainTextToken;
+
+        return response()->json([
+            'token' => $token,
+            'user' => $user
+        ]);
+    }
+
+    public function me(Request $request)
+    {
+        return response()->json(['user' => $request->user()]);
+    }
+}
diff --git a/backend/app/Http/Controllers/QuestController.php b/backend/app/Http/Controllers/QuestController.php
new file mode 100644
index 0000000..5aff741
--- /dev/null
+++ b/backend/app/Http/Controllers/QuestController.php
@@ -0,0 +1,70 @@
+<?php
+
+namespace App\Http\Controllers;
+
+use App\Models\Quest;
+use App\Models\Task;
+use Illuminate\Http\Request;
+
+class QuestController extends Controller
+{
+    public function index(Request $request)
+    {
+        $quests = Quest::where('user_id', $request->user()->id)->where('is_completed', false)->get();
+        return response()->json($quests);
+    }
+
+    public function generate(Request $request)
+    {
+        // Vereinfachte Logik: Nimmt die letzten 5 offenen Tasks und macht daraus Quests
+        $tasks = Task::where('user_id', $request->user()->id)->limit(5)->get();
+
+        $quests = [];
+        foreach ($tasks as $task) {
+            $quests[] = Quest::create([
+                'user_id' => $request->user()->id,
+                'task_id' => $task->id,
+                'title' => $task->title,
+                'category' => $task->category,
+                'due_date' => $task->due_date,
+                'xp_reward' => 50,
+                'is_completed' => false
+            ]);
+        }
+
+        return response()->json($quests, 201);
+    }
+
+    public function complete(Request $request, $id)
+    {
+        $quest = Quest::where('user_id', $request->user()->id)->findOrFail($id);
+
+        if ($quest->is_completed) {
+            return response()->json(['message' => 'Quest already completed'], 400);
+        }
+
+        // Mark as completed
+        $quest->update(['is_completed' => true]);
+
+        $user = $request->user();
+        $user->xp += $quest->xp_reward;
+
+        // Level-Up Check (vereinfachte Logik)
+        $xpForNextLevel = $user->level * 100;
+        $levelUp = false;
+        while ($user->xp >= $xpForNextLevel) {
+            $user->level += 1;
+            $user->xp = $user->xp - $xpForNextLevel;
+            $xpForNextLevel = $user->level * 100;
+            $levelUp = true;
+        }
+        $user->save();
+
+        return response()->json([
+            'quest' => $quest,
+            'xp_gained' => $quest->xp_reward,
+            'new_level' => $user->level,
+            'level_up' => $levelUp
+        ]);
+    }
+}
diff --git a/backend/app/Http/Controllers/RewardController.php b/backend/app/Http/Controllers/RewardController.php
new file mode 100644
index 0000000..86b7eed
--- /dev/null
+++ b/backend/app/Http/Controllers/RewardController.php
@@ -0,0 +1,22 @@
+<?php
+
+namespace App\Http\Controllers;
+
+use App\Models\Reward;
+use Illuminate\Http\Request;
+
+class RewardController extends Controller
+{
+    public function index(Request $request)
+    {
+        $rewards = Reward::all();
+        return response()->json($rewards);
+    }
+
+    public function unlocked(Request $request)
+    {
+        $user = $request->user();
+        $unlocked = $user->belongsToMany(Reward::class, 'reward_user')->get();
+        return response()->json($unlocked);
+    }
+}
diff --git a/backend/app/Http/Controllers/TaskController.php b/backend/app/Http/Controllers/TaskController.php
new file mode 100644
index 0000000..fb61a7e
--- /dev/null
+++ b/backend/app/Http/Controllers/TaskController.php
@@ -0,0 +1,57 @@
+<?php
+
+namespace App\Http\Controllers;
+
+use App\Models\Task;
+use Illuminate\Http\Request;
+
+class TaskController extends Controller
+{
+    public function index(Request $request)
+    {
+        $tasks = Task::where('user_id', $request->user()->id)->get();
+        return response()->json($tasks);
+    }
+
+    public function store(Request $request)
+    {
+        $request->validate([
+            'title' => 'required',
+            'category' => 'in:daily,weekend,vacation,work',
+            'priority' => 'in:low,medium,high'
+        ]);
+
+        $task = Task::create([
+            'user_id' => $request->user()->id,
+            'title' => $request->title,
+            'description' => $request->description,
+            'category' => $request->category ?? 'daily',
+            'priority' => $request->priority ?? 'medium',
+            'due_date' => $request->due_date
+        ]);
+
+        return response()->json($task, 201);
+    }
+
+    public function show(Request $request, $id)
+    {
+        $task = Task::where('user_id', $request->user()->id)->findOrFail($id);
+        return response()->json($task);
+    }
+
+    public function update(Request $request, $id)
+    {
+        $task = Task::where('user_id', $request->user()->id)->findOrFail($id);
+
+        $task->update($request->only('title', 'description', 'category', 'priority', 'due_date'));
+
+        return response()->json($task);
+    }
+
+    public function destroy(Request $request, $id)
+    {
+        $task = Task::where('user_id', $request->user()->id)->findOrFail($id);
+        $task->delete();
+        return response()->noContent();
+    }
+}
diff --git a/backend/app/Http/Controllers/UserController.php b/backend/app/Http/Controllers/UserController.php
new file mode 100644
index 0000000..634d9d9
--- /dev/null
+++ b/backend/app/Http/Controllers/UserController.php
@@ -0,0 +1,25 @@
+<?php
+
+namespace App\Http\Controllers;
+
+use App\Models\Reward;
+use Illuminate\Http\Request;
+
+class UserController extends Controller
+{
+    public function status(Request $request)
+    {
+        $user = $request->user();
+        $xpForNextLevel = $user->level * 100;
+
+        // Finde noch nicht freigeschaltete Rewards, die in Reichweite sind
+        $upcomingRewards = Reward::where('unlocked_at_level', '>', $user->level)->limit(5)->get();
+
+        return response()->json([
+            'level' => $user->level,
+            'xp' => $user->xp,
+            'xp_for_next_level' => $xpForNextLevel,
+            'upcoming_rewards' => $upcomingRewards
+        ]);
+    }
+}
diff --git a/backend/app/Models/Quest.php b/backend/app/Models/Quest.php
new file mode 100644
index 0000000..1f6815e
--- /dev/null
+++ b/backend/app/Models/Quest.php
@@ -0,0 +1,31 @@
+<?php
+
+namespace App\Models;
+
+use Illuminate\Database\Eloquent\Factories\HasFactory;
+use Illuminate\Database\Eloquent\Model;
+
+class Quest extends Model
+{
+    use HasFactory;
+
+    protected $fillable = [
+        'user_id',
+        'task_id',
+        'title',
+        'category',
+        'due_date',
+        'xp_reward',
+        'is_completed'
+    ];
+
+    public function user()
+    {
+        return $this->belongsTo(User::class);
+    }
+
+    public function task()
+    {
+        return $this->belongsTo(Task::class);
+    }
+}
diff --git a/backend/app/Models/Reward.php b/backend/app/Models/Reward.php
new file mode 100644
index 0000000..a219ed3
--- /dev/null
+++ b/backend/app/Models/Reward.php
@@ -0,0 +1,22 @@
+<?php
+
+namespace App\Models;
+
+use Illuminate\Database\Eloquent\Factories\HasFactory;
+use Illuminate\Database\Eloquent\Model;
+
+class Reward extends Model
+{
+    use HasFactory;
+
+    protected $fillable = [
+        'name',
+        'description',
+        'unlocked_at_level'
+    ];
+
+    public function users()
+    {
+        return $this->belongsToMany(User::class, 'reward_user');
+    }
+}
diff --git a/backend/app/Models/Task.php b/backend/app/Models/Task.php
new file mode 100644
index 0000000..386a0a6
--- /dev/null
+++ b/backend/app/Models/Task.php
@@ -0,0 +1,25 @@
+<?php
+
+namespace App\Models;
+
+use Illuminate\Database\Eloquent\Factories\HasFactory;
+use Illuminate\Database\Eloquent\Model;
+
+class Task extends Model
+{
+    use HasFactory;
+
+    protected $fillable = [
+        'user_id',
+        'title',
+        'description',
+        'category',
+        'priority',
+        'due_date'
+    ];
+
+    public function user()
+    {
+        return $this->belongsTo(User::class);
+    }
+}
diff --git a/backend/app/Models/User.php b/backend/app/Models/User.php
index def621f..9b450b9 100644
--- a/backend/app/Models/User.php
+++ b/backend/app/Models/User.php
@@ -20,6 +20,8 @@ class User extends Authenticatable
         'name',
         'email',
         'password',
+        'level',
+        'xp'
     ];
 
     /**
diff --git a/backend/config/app.php b/backend/config/app.php
index f467267..63f9d3c 100644
--- a/backend/config/app.php
+++ b/backend/config/app.php
@@ -13,7 +13,7 @@ return [
     |
     */
 
-    'name' => env('APP_NAME', 'Laravel'),
+    'name' => env('APP_NAME', 'ADHD Home Quest'),
 
     /*
     |--------------------------------------------------------------------------
@@ -26,7 +26,7 @@ return [
     |
     */
 
-    'env' => env('APP_ENV', 'production'),
+    'env' => env('APP_ENV', 'development'),
 
     /*
     |--------------------------------------------------------------------------
@@ -39,7 +39,7 @@ return [
     |
     */
 
-    'debug' => (bool) env('APP_DEBUG', false),
+    'debug' => (bool) env('APP_DEBUG', true),
 
     /*
     |--------------------------------------------------------------------------
@@ -65,7 +65,7 @@ return [
     |
     */
 
-    'timezone' => env('APP_TIMEZONE', 'UTC'),
+    'timezone' => env('APP_TIMEZONE', 'CET'),
 
     /*
     |--------------------------------------------------------------------------
diff --git a/backend/database/migrations/2024_12_16_084121_create_users_table.php b/backend/database/migrations/2024_12_16_084121_create_users_table.php
new file mode 100644
index 0000000..92d02f3
--- /dev/null
+++ b/backend/database/migrations/2024_12_16_084121_create_users_table.php
@@ -0,0 +1,30 @@
+<?php
+
+use Illuminate\Database\Migrations\Migration;
+use Illuminate\Database\Schema\Blueprint;
+use Illuminate\Support\Facades\Schema;
+
+return new class extends Migration {
+    /**
+     * Run the migrations.
+     */
+    public function up()
+    {
+        Schema::create('users', function (Blueprint $table) {
+            $table->id();
+            $table->string('name');
+            $table->string('email')->unique();
+            $table->string('password');
+            $table->integer('level')->default(1);
+            $table->integer('xp')->default(0);
+            $table->timestamps();
+        });
+    }
+    /**
+     * Reverse the migrations.
+     */
+    public function down(): void
+    {
+        Schema::dropIfExists('users');
+    }
+};
diff --git a/backend/database/migrations/2024_12_16_084321_create_tasks_table.php b/backend/database/migrations/2024_12_16_084321_create_tasks_table.php
new file mode 100644
index 0000000..40a44c9
--- /dev/null
+++ b/backend/database/migrations/2024_12_16_084321_create_tasks_table.php
@@ -0,0 +1,33 @@
+<?php
+
+use Illuminate\Database\Migrations\Migration;
+use Illuminate\Database\Schema\Blueprint;
+use Illuminate\Support\Facades\Schema;
+
+return new class extends Migration {
+    /**
+     * Run the migrations.
+     */
+    public function up()
+    {
+        Schema::create('tasks', function (Blueprint $table) {
+            $table->id();
+            $table->unsignedBigInteger('user_id');
+            $table->string('title');
+            $table->text('description')->nullable();
+            $table->enum('category', ['daily', 'weekend', 'vacation', 'work'])->default('daily');
+            $table->enum('priority', ['low', 'medium', 'high'])->default('medium');
+            $table->dateTime('due_date')->nullable();
+            $table->timestamps();
+
+            $table->foreign('user_id')->references('id')->on('users')->onDelete('cascade');
+        });
+    }
+    /**
+     * Reverse the migrations.
+     */
+    public function down(): void
+    {
+        Schema::dropIfExists('tasks');
+    }
+};
diff --git a/backend/database/migrations/2024_12_16_084521_create_quest_table.php b/backend/database/migrations/2024_12_16_084521_create_quest_table.php
new file mode 100644
index 0000000..6728852
--- /dev/null
+++ b/backend/database/migrations/2024_12_16_084521_create_quest_table.php
@@ -0,0 +1,36 @@
+<?php
+
+use Illuminate\Database\Migrations\Migration;
+use Illuminate\Database\Schema\Blueprint;
+use Illuminate\Support\Facades\Schema;
+
+return new class extends Migration {
+    /**
+     * Run the migrations.
+     */
+    public function up()
+    {
+        Schema::create('quests', function (Blueprint $table) {
+            $table->id();
+            $table->unsignedBigInteger('user_id');
+            $table->unsignedBigInteger('task_id');
+            $table->string('title');
+            $table->string('category');
+            $table->dateTime('due_date')->nullable();
+            $table->integer('xp_reward')->default(50);
+            $table->boolean('is_completed')->default(false);
+            $table->timestamps();
+
+            $table->foreign('user_id')->references('id')->on('users')->onDelete('cascade');
+            $table->foreign('task_id')->references('id')->on('tasks')->onDelete('cascade');
+        });
+    }
+
+    /**
+     * Reverse the migrations.
+     */
+    public function down(): void
+    {
+        Schema::dropIfExists('quests');
+    }
+};
diff --git a/backend/database/migrations/2024_12_16_084621_create_rewards_table.php b/backend/database/migrations/2024_12_16_084621_create_rewards_table.php
new file mode 100644
index 0000000..6be9c0e
--- /dev/null
+++ b/backend/database/migrations/2024_12_16_084621_create_rewards_table.php
@@ -0,0 +1,41 @@
+<?php
+
+use Illuminate\Database\Migrations\Migration;
+use Illuminate\Database\Schema\Blueprint;
+use Illuminate\Support\Facades\Schema;
+
+return new class extends Migration {
+    /**
+     * Run the migrations.
+     */
+    public function up()
+    {
+        Schema::create('rewards', function (Blueprint $table) {
+            $table->id();
+            $table->string('name');
+            $table->text('description')->nullable();
+            $table->integer('unlocked_at_level')->default(2);
+            $table->timestamps();
+        });
+
+        // Optionale Pivot-Tabelle für freigeschaltete Rewards
+        Schema::create('reward_user', function (Blueprint $table) {
+            $table->id();
+            $table->unsignedBigInteger('user_id');
+            $table->unsignedBigInteger('reward_id');
+            $table->timestamps();
+
+            $table->foreign('user_id')->references('id')->on('users')->onDelete('cascade');
+            $table->foreign('reward_id')->references('id')->on('rewards')->onDelete('cascade');
+        });
+    }
+
+    /**
+     * Reverse the migrations.
+     */
+    public function down(): void
+    {
+        Schema::dropIfExists('rewards');
+        Schema::dropIfExists('reward_user');
+    }
+};
diff --git a/backend/resources/views/welcome.blade.php b/backend/resources/views/welcome.blade.php
index a9898e3..73559a9 100644
--- a/backend/resources/views/welcome.blade.php
+++ b/backend/resources/views/welcome.blade.php
@@ -55,111 +55,7 @@
                     </header>
 
                     <main class="mt-6">
-                        <div class="grid gap-6 lg:grid-cols-2 lg:gap-8">
-                            <a
-                                href="https://laravel.com/docs"
-                                id="docs-card"
-                                class="flex flex-col items-start gap-6 overflow-hidden rounded-lg bg-white p-6 shadow-[0px_14px_34px_0px_rgba(0,0,0,0.08)] ring-1 ring-white/[0.05] transition duration-300 hover:text-black/70 hover:ring-black/20 focus:outline-none focus-visible:ring-[#FF2D20] md:row-span-3 lg:p-10 lg:pb-10 dark:bg-zinc-900 dark:ring-zinc-800 dark:hover:text-white/70 dark:hover:ring-zinc-700 dark:focus-visible:ring-[#FF2D20]"
-                            >
-                                <div id="screenshot-container" class="relative flex w-full flex-1 items-stretch">
-                                    <img
-                                        src="https://laravel.com/assets/img/welcome/docs-light.svg"
-                                        alt="Laravel documentation screenshot"
-                                        class="aspect-video h-full w-full flex-1 rounded-[10px] object-top object-cover drop-shadow-[0px_4px_34px_rgba(0,0,0,0.06)] dark:hidden"
-                                        onerror="
-                                            document.getElementById('screenshot-container').classList.add('!hidden');
-                                            document.getElementById('docs-card').classList.add('!row-span-1');
-                                            document.getElementById('docs-card-content').classList.add('!flex-row');
-                                            document.getElementById('background').classList.add('!hidden');
-                                        "
-                                    />
-                                    <img
-                                        src="https://laravel.com/assets/img/welcome/docs-dark.svg"
-                                        alt="Laravel documentation screenshot"
-                                        class="hidden aspect-video h-full w-full flex-1 rounded-[10px] object-top object-cover drop-shadow-[0px_4px_34px_rgba(0,0,0,0.25)] dark:block"
-                                    />
-                                    <div
-                                        class="absolute -bottom-16 -left-16 h-40 w-[calc(100%+8rem)] bg-gradient-to-b from-transparent via-white to-white dark:via-zinc-900 dark:to-zinc-900"
-                                    ></div>
-                                </div>
 
-                                <div class="relative flex items-center gap-6 lg:items-end">
-                                    <div id="docs-card-content" class="flex items-start gap-6 lg:flex-col">
-                                        <div class="flex size-12 shrink-0 items-center justify-center rounded-full bg-[#FF2D20]/10 sm:size-16">
-                                            <svg class="size-5 sm:size-6" xmlns="http://www.w3.org/2000/svg" fill="none" viewBox="0 0 24 24"><path fill="#FF2D20" d="M23 4a1 1 0 0 0-1.447-.894L12.224 7.77a.5.5 0 0 1-.448 0L2.447 3.106A1 1 0 0 0 1 4v13.382a1.99 1.99 0 0 0 1.105 1.79l9.448 4.728c.14.065.293.1.447.1.154-.005.306-.04.447-.105l9.453-4.724a1.99 1.99 0 0 0 1.1-1.789V4ZM3 6.023a.25.25 0 0 1 .362-.223l7.5 3.75a.251.251 0 0 1 .138.223v11.2a.25.25 0 0 1-.362.224l-7.5-3.75a.25.25 0 0 1-.138-.22V6.023Zm18 11.2a.25.25 0 0 1-.138.224l-7.5 3.75a.249.249 0 0 1-.329-.099.249.249 0 0 1-.033-.12V9.772a.251.251 0 0 1 .138-.224l7.5-3.75a.25.25 0 0 1 .362.224v11.2Z"/><path fill="#FF2D20" d="m3.55 1.893 8 4.048a1.008 1.008 0 0 0 .9 0l8-4.048a1 1 0 0 0-.9-1.785l-7.322 3.706a.506.506 0 0 1-.452 0L4.454.108a1 1 0 0 0-.9 1.785H3.55Z"/></svg>
-                                        </div>
-
-                                        <div class="pt-3 sm:pt-5 lg:pt-0">
-                                            <h2 class="text-xl font-semibold text-black dark:text-white">Documentation</h2>
-
-                                            <p class="mt-4 text-sm/relaxed">
-                                                Laravel has wonderful documentation covering every aspect of the framework. Whether you are a newcomer or have prior experience with Laravel, we recommend reading our documentation from beginning to end.
-                                            </p>
-                                        </div>
-                                    </div>
-
-                                    <svg class="size-6 shrink-0 stroke-[#FF2D20]" xmlns="http://www.w3.org/2000/svg" fill="none" viewBox="0 0 24 24" stroke-width="1.5"><path stroke-linecap="round" stroke-linejoin="round" d="M4.5 12h15m0 0l-6.75-6.75M19.5 12l-6.75 6.75"/></svg>
-                                </div>
-                            </a>
-
-                            <a
-                                href="https://laracasts.com"
-                                class="flex items-start gap-4 rounded-lg bg-white p-6 shadow-[0px_14px_34px_0px_rgba(0,0,0,0.08)] ring-1 ring-white/[0.05] transition duration-300 hover:text-black/70 hover:ring-black/20 focus:outline-none focus-visible:ring-[#FF2D20] lg:pb-10 dark:bg-zinc-900 dark:ring-zinc-800 dark:hover:text-white/70 dark:hover:ring-zinc-700 dark:focus-visible:ring-[#FF2D20]"
-                            >
-                                <div class="flex size-12 shrink-0 items-center justify-center rounded-full bg-[#FF2D20]/10 sm:size-16">
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diff --git a/backend/routes/api.php b/backend/routes/api.php
index 65390bd..62b94c3 100644
--- a/backend/routes/api.php
+++ b/backend/routes/api.php
@@ -1,9 +1,30 @@
 <?php
 
-use Illuminate\Http\Request;
+use App\Http\Controllers\AuthController;
+use App\Http\Controllers\TaskController;
+use App\Http\Controllers\QuestController;
+use App\Http\Controllers\UserController;
+use App\Http\Controllers\RewardController;
 use Illuminate\Support\Facades\Route;
 
-Route::get('/user', function (Request $request) {
-    return $request->user();
-})->middleware('auth:sanctum');
+Route::post('/auth/register', [AuthController::class, 'register']);
+Route::post('/auth/login', [AuthController::class, 'login']);
 
+Route::middleware(['auth:sanctum'])->group(function () {
+    Route::get('/auth/me', [AuthController::class, 'me']);
+
+    Route::get('/tasks', [TaskController::class, 'index']);
+    Route::post('/tasks', [TaskController::class, 'store']);
+    Route::get('/tasks/{id}', [TaskController::class, 'show']);
+    Route::put('/tasks/{id}', [TaskController::class, 'update']);
+    Route::delete('/tasks/{id}', [TaskController::class, 'destroy']);
+
+    Route::get('/quests', [QuestController::class, 'index']);
+    Route::post('/quests', [QuestController::class, 'generate']);
+    Route::post('/quests/{id}/complete', [QuestController::class, 'complete']);
+
+    Route::get('/user/status', [UserController::class, 'status']);
+
+    Route::get('/rewards', [RewardController::class, 'index']);
+    Route::get('/rewards/unlocked', [RewardController::class, 'unlocked']);
+});
diff --git a/swagger.yml b/swagger.yml
new file mode 100644
index 0000000..f90557b
--- /dev/null
+++ b/swagger.yml
@@ -0,0 +1,480 @@
+openapi: 3.0.0
+info:
+  title: ADHD Home Quest API
+  version: 1.0.0
+  description: >
+    Eine REST-API für die ADHD Home Quest App.
+    Diese API bietet Endpunkte für:
+    - User-Registrierung und -Login
+    - Aufgabenverwaltung (Tasks)
+    - Quest-Generierung (Quests)
+    - XP & Levelsystem
+    - Belohnungen (Rewards) & Achievements
+  contact:
+    name: ADHD Home Quest Team
+    email: adhdhomequest@josunlp.de
+
+servers:
+  - url: https://api.adhdhomequest.josunlp.de
+    description: Produktions-Server
+  - url: https://staging.api.adhdhomequest.josunlp.de
+    description: Staging-Server
+
+tags:
+  - name: Auth
+    description: Endpunkte zur Authentifizierung und User-Verwaltung
+  - name: Tasks
+    description: Endpunkte zur Aufgabenverwaltung
+  - name: Quests
+    description: Generierung und Management von Quests
+  - name: User
+    description: Userbezogene Daten (XP, Level, Achievements)
+  - name: Rewards
+    description: Rewards und Achievements
+
+paths:
+  /auth/register:
+    post:
+      tags:
+        - Auth
+      summary: Registriert einen neuen Nutzer
+      requestBody:
+        required: true
+        content:
+          application/json:
+            schema:
+              $ref: '#/components/schemas/RegisterRequest'
+      responses:
+        '201':
+          description: Nutzer erfolgreich registriert
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/UserResponse'
+        '400':
+          description: Ungültige Eingaben
+
+  /auth/login:
+    post:
+      tags:
+        - Auth
+      summary: Loggt einen bestehenden Nutzer ein
+      requestBody:
+        required: true
+        content:
+          application/json:
+            schema:
+              $ref: '#/components/schemas/LoginRequest'
+      responses:
+        '200':
+          description: Erfolgreich eingeloggt, Access Token wird zurückgegeben
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/LoginResponse'
+        '401':
+          description: Ungültige Login-Daten
+
+  /auth/me:
+    get:
+      tags:
+        - Auth
+      summary: Liefert Informationen über den eingeloggten Nutzer
+      security:
+        - BearerAuth: []
+      responses:
+        '200':
+          description: Nutzerinformationen
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/UserResponse'
+        '401':
+          description: Nicht autorisiert
+
+  /tasks:
+    get:
+      tags:
+        - Tasks
+      summary: Liste alle Tasks des eingeloggten Nutzers auf
+      security:
+        - BearerAuth: []
+      responses:
+        '200':
+          description: Liste von Tasks
+          content:
+            application/json:
+              schema:
+                type: array
+                items:
+                  $ref: '#/components/schemas/Task'
+    post:
+      tags:
+        - Tasks
+      summary: Erstelle einen neuen Task
+      security:
+        - BearerAuth: []
+      requestBody:
+        required: true
+        content:
+          application/json:
+            schema:
+              $ref: '#/components/schemas/CreateTaskRequest'
+      responses:
+        '201':
+          description: Task erstellt
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/Task'
+        '400':
+          description: Ungültige Daten
+
+  /tasks/{id}:
+    get:
+      tags:
+        - Tasks
+      summary: Hole einen einzelnen Task
+      security:
+        - BearerAuth: []
+      parameters:
+        - name: id
+          in: path
+          required: true
+          schema:
+            type: integer
+      responses:
+        '200':
+          description: Task gefunden
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/Task'
+        '404':
+          description: Task nicht gefunden
+
+    put:
+      tags:
+        - Tasks
+      summary: Aktualisiere einen bestehenden Task
+      security:
+        - BearerAuth: []
+      parameters:
+        - name: id
+          in: path
+          required: true
+          schema:
+            type: integer
+      requestBody:
+        required: true
+        content:
+          application/json:
+            schema:
+              $ref: '#/components/schemas/UpdateTaskRequest'
+      responses:
+        '200':
+          description: Task aktualisiert
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/Task'
+        '400':
+          description: Ungültige Daten
+        '404':
+          description: Task nicht gefunden
+
+    delete:
+      tags:
+        - Tasks
+      summary: Lösche einen bestehenden Task
+      security:
+        - BearerAuth: []
+      parameters:
+        - name: id
+          in: path
+          required: true
+          schema:
+            type: integer
+      responses:
+        '204':
+          description: Task gelöscht
+        '404':
+          description: Task nicht gefunden
+
+  /quests:
+    get:
+      tags:
+        - Quests
+      summary: Liste aller aktuell generierten Quests für den Nutzer
+      security:
+        - BearerAuth: []
+      responses:
+        '200':
+          description: Liste von Quests
+          content:
+            application/json:
+              schema:
+                type: array
+                items:
+                  $ref: '#/components/schemas/Quest'
+    post:
+      tags:
+        - Quests
+      summary: Generiere neue Quests auf Basis der vorhandenen Tasks
+      security:
+        - BearerAuth: []
+      responses:
+        '201':
+          description: Neue Quests generiert
+          content:
+            application/json:
+              schema:
+                type: array
+                items:
+                  $ref: '#/components/schemas/Quest'
+
+  /quests/{id}/complete:
+    post:
+      tags:
+        - Quests
+      summary: Markiert eine Quest als erledigt und vergibt XP
+      security:
+        - BearerAuth: []
+      parameters:
+        - name: id
+          in: path
+          required: true
+          schema:
+            type: integer
+      responses:
+        '200':
+          description: Quest erledigt, XP vergeben
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/QuestCompletionResponse'
+        '404':
+          description: Quest nicht gefunden
+
+  /user/status:
+    get:
+      tags:
+        - User
+      summary: Liefert den aktuellen Level, XP und nächste Rewards
+      security:
+        - BearerAuth: []
+      responses:
+        '200':
+          description: User-Status mit XP, Level und Rewards
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/UserStatus'
+
+  /rewards:
+    get:
+      tags:
+        - Rewards
+      summary: Liste aller möglichen Rewards / Achievements
+      security:
+        - BearerAuth: []
+      responses:
+        '200':
+          description: Liste aller Rewards/Achievements
+          content:
+            application/json:
+              schema:
+                type: array
+                items:
+                  $ref: '#/components/schemas/Reward'
+
+  /rewards/unlocked:
+    get:
+      tags:
+        - Rewards
+      summary: Liste der freigeschalteten Rewards für den aktuellen Nutzer
+      security:
+        - BearerAuth: []
+      responses:
+        '200':
+          description: Liste der freigeschalteten Rewards
+          content:
+            application/json:
+              schema:
+                type: array
+                items:
+                  $ref: '#/components/schemas/Reward'
+
+components:
+  securitySchemes:
+    BearerAuth:
+      type: http
+      scheme: bearer
+      bearerFormat: JWT
+
+  schemas:
+    RegisterRequest:
+      type: object
+      required:
+        - name
+        - email
+        - password
+      properties:
+        name:
+          type: string
+        email:
+          type: string
+          format: email
+        password:
+          type: string
+
+    LoginRequest:
+      type: object
+      required:
+        - email
+        - password
+      properties:
+        email:
+          type: string
+          format: email
+        password:
+          type: string
+
+    LoginResponse:
+      type: object
+      properties:
+        token:
+          type: string
+        user:
+          $ref: '#/components/schemas/User'
+
+    UserResponse:
+      type: object
+      properties:
+        user:
+          $ref: '#/components/schemas/User'
+
+    User:
+      type: object
+      properties:
+        id:
+          type: integer
+        name:
+          type: string
+        email:
+          type: string
+          format: email
+        level:
+          type: integer
+        xp:
+          type: integer
+
+    UserStatus:
+      type: object
+      properties:
+        level:
+          type: integer
+        xp:
+          type: integer
+        xp_for_next_level:
+          type: integer
+        upcoming_rewards:
+          type: array
+          items:
+            $ref: '#/components/schemas/Reward'
+
+    Task:
+      type: object
+      properties:
+        id:
+          type: integer
+        title:
+          type: string
+        description:
+          type: string
+        category:
+          type: string
+          enum: [daily, weekend, vacation, work]
+        priority:
+          type: string
+          enum: [low, medium, high]
+        due_date:
+          type: string
+          format: date-time
+
+    CreateTaskRequest:
+      type: object
+      required:
+        - title
+      properties:
+        title:
+          type: string
+        description:
+          type: string
+        category:
+          type: string
+          enum: [daily, weekend, vacation, work]
+        priority:
+          type: string
+          enum: [low, medium, high]
+        due_date:
+          type: string
+          format: date-time
+
+    UpdateTaskRequest:
+      type: object
+      properties:
+        title:
+          type: string
+        description:
+          type: string
+        category:
+          type: string
+          enum: [daily, weekend, vacation, work]
+        priority:
+          type: string
+          enum: [low, medium, high]
+        due_date:
+          type: string
+          format: date-time
+
+    Quest:
+      type: object
+      properties:
+        id:
+          type: integer
+        task_id:
+          type: integer
+        title:
+          type: string
+        category:
+          type: string
+        due_date:
+          type: string
+          format: date-time
+        xp_reward:
+          type: integer
+
+    QuestCompletionResponse:
+      type: object
+      properties:
+        quest:
+          $ref: '#/components/schemas/Quest'
+        xp_gained:
+          type: integer
+        new_level:
+          type: integer
+        level_up:
+          type: boolean
+
+    Reward:
+      type: object
+      properties:
+        id:
+          type: integer
+        name:
+          type: string
+        description:
+          type: string
+        unlocked_at_level:
+          type: integer