diff --git a/app/src/main/java/com/p_vacho/neat_calendar/api/RetrofitClient.kt b/app/src/main/java/com/p_vacho/neat_calendar/api/RetrofitClient.kt
index 5259ec0..4418ba5 100644
--- a/app/src/main/java/com/p_vacho/neat_calendar/api/RetrofitClient.kt
+++ b/app/src/main/java/com/p_vacho/neat_calendar/api/RetrofitClient.kt
@@ -16,6 +16,7 @@ import com.p_vacho.neat_calendar.api.converters.ColorConverter
 import com.p_vacho.neat_calendar.api.services.CategoryService
 import com.p_vacho.neat_calendar.api.services.EventsService
 import com.p_vacho.neat_calendar.api.services.InvitationsService
+import com.p_vacho.neat_calendar.api.services.NotificationService
 import com.p_vacho.neat_calendar.api.services.UsersService
 
 object RetrofitClient {
@@ -45,6 +46,9 @@ object RetrofitClient {
     val usersService: UsersService
         get() = retrofitClient!!.create(UsersService::class.java)
 
+    val notificationsService: NotificationService
+        get() = retrofitClient!!.create(NotificationService::class.java)
+
     fun initialize(context: Context) {
         appContext = context
         baseUrl = getBaseUrl()
diff --git a/app/src/main/java/com/p_vacho/neat_calendar/api/models/NotificationModels.kt b/app/src/main/java/com/p_vacho/neat_calendar/api/models/NotificationModels.kt
new file mode 100644
index 0000000..e21d0bc
--- /dev/null
+++ b/app/src/main/java/com/p_vacho/neat_calendar/api/models/NotificationModels.kt
@@ -0,0 +1,14 @@
+package com.p_vacho.neat_calendar.api.models
+
+import java.time.OffsetDateTime
+
+data class NotificationResponse(
+    val id: String,
+    val user_id: String,
+    val event_type: String, // "reminder" / "invitation"
+    val message: String,
+    val data: String,
+    val read: Boolean,
+    val created_at: OffsetDateTime,
+    val read_at: OffsetDateTime?,
+)
diff --git a/app/src/main/java/com/p_vacho/neat_calendar/api/services/NotificationService.kt b/app/src/main/java/com/p_vacho/neat_calendar/api/services/NotificationService.kt
new file mode 100644
index 0000000..635dfcf
--- /dev/null
+++ b/app/src/main/java/com/p_vacho/neat_calendar/api/services/NotificationService.kt
@@ -0,0 +1,17 @@
+package com.p_vacho.neat_calendar.api.services
+
+import com.p_vacho.neat_calendar.api.models.NotificationResponse
+import retrofit2.http.GET
+import retrofit2.http.POST
+import retrofit2.http.Path
+
+interface NotificationService {
+    @GET("users/{user_id}/notifications")
+    suspend fun getUserNotifications(@Path("user_id") userId: String): List<NotificationResponse>
+
+    @GET("notifications/{notification_id}")
+    suspend fun getNotificationId(@Path("notification_id") notificationId: String): NotificationResponse
+
+    @POST("notifications/{notification_id}/read")
+    suspend fun markNotificationRead(@Path("notification_id") notificationId: String): NotificationResponse
+}
\ No newline at end of file