diff --git a/app/src/main/java/com/yourcompany/attendancemanager/AttendanceApiService.kt b/app/src/main/java/com/yourcompany/attendancemanager/AttendanceApiService.kt
index e69de29..e5144b2 100644
--- a/app/src/main/java/com/yourcompany/attendancemanager/AttendanceApiService.kt
+++ b/app/src/main/java/com/yourcompany/attendancemanager/AttendanceApiService.kt
@@ -0,0 +1,12 @@
+import retrofit2.http.Header
+import retrofit2.http.POST
+import retrofit2.Response
+import retrofit2.http.Body
+
+interface AttendanceApiService {
+    @POST("/attendance/checkin")
+    suspend fun checkIn(
+        @Header("Authorization") token: String,
+        @Body body: CheckInRequest
+    ): Response<CheckInResponse>
+}
\ No newline at end of file