diff --git a/src/app/api/auth/register/route.ts b/src/app/api/auth/register/route.ts
new file mode 100644
index 0000000..5699469
--- /dev/null
+++ b/src/app/api/auth/register/route.ts
@@ -0,0 +1,84 @@
+import { NextRequest, NextResponse } from "next/server";
+
+interface RegisterRequest {
+  firstName: string;
+  lastName: string;
+  email: string;
+  password: string;
+  userType: "student" | "teacher";
+}
+
+// This is a mock implementation. In production, you would:
+// 1. Hash the password using bcrypt or similar
+// 2. Store the user in a database
+// 3. Send verification email
+// 4. Create JWT tokens
+
+const mockUsers: { [key: string]: RegisterRequest & { id: string } } = {};
+
+export async function POST(request: NextRequest) {
+  try {
+    const body: RegisterRequest = await request.json();
+
+    // Validate input
+    if (
+      !body.firstName ||
+      !body.lastName ||
+      !body.email ||
+      !body.password ||
+      !body.userType
+    ) {
+      return NextResponse.json(
+        { message: "Tüm alanlar zorunludur" },
+        { status: 400 }
+      );
+    }
+
+    // Check if user already exists
+    if (mockUsers[body.email]) {
+      return NextResponse.json(
+        { message: "Bu e-posta adresi zaten kullanımda" },
+        { status: 409 }
+      );
+    }
+
+    // In production, hash the password
+    // const hashedPassword = await bcrypt.hash(body.password, 10);
+
+    // Create new user
+    const newUser = {
+      id: `user_${Date.now()}`,
+      firstName: body.firstName,
+      lastName: body.lastName,
+      email: body.email,
+      password: body.password, // Never store plaintext in production!
+      userType: body.userType,
+    };
+
+    mockUsers[body.email] = newUser;
+
+    // In production, you would:
+    // 1. Create a JWT token
+    // 2. Set secure HTTP-only cookie
+    // 3. Send verification email
+
+    return NextResponse.json(
+      {
+        message: "Kayıt başarıyla tamamlandı",        user: {
+          id: newUser.id,
+          firstName: newUser.firstName,
+          lastName: newUser.lastName,
+          email: newUser.email,
+          userType: newUser.userType,
+        },
+      },
+      { status: 201 }
+    );
+  } catch (error) {
+    console.error("Registration error:", error);
+    return NextResponse.json(
+      { message: "Sunucu hatası oluştu" },
+      { status: 500 }
+    );
+  }
+}