diff --git a/AcaMate.xcodeproj/project.xcworkspace/xcuserdata/tanine.xcuserdatad/UserInterfaceState.xcuserstate b/AcaMate.xcodeproj/project.xcworkspace/xcuserdata/tanine.xcuserdatad/UserInterfaceState.xcuserstate
index a4f7fe0..bcbd1d0 100644
Binary files a/AcaMate.xcodeproj/project.xcworkspace/xcuserdata/tanine.xcuserdatad/UserInterfaceState.xcuserstate and b/AcaMate.xcodeproj/project.xcworkspace/xcuserdata/tanine.xcuserdatad/UserInterfaceState.xcuserstate differ
diff --git a/AcaMate/2. Model/API Response.swift b/AcaMate/2. Model/API Response.swift
index 70d64e4..c8ce403 100644
--- a/AcaMate/2. Model/API Response.swift	
+++ b/AcaMate/2. Model/API Response.swift	
@@ -62,13 +62,15 @@ enum APICode: Codable, RawRepresentable {
 }
 
 
+// /api/v1/in/app ----------------
+class Header: Codable {
+    let header: String
+}
 
 // /api/v1/in/app/version ----------------
-
 class VersionData: Codable {
     let os_type, final_ver, dev_ver, force_ver: String
     let choice_update_yn: Bool
-    
 }
 
 // /api/v1/in/app/retryAccess ----------------
@@ -78,12 +80,9 @@ class Access: Codable {
 
 // /api/v1/in/user ----------------
 class User: Codable {
-    let uid, name, type: String
-    let device_id, push_token: String?
+    let uid, name, type, login_date: String
+    let device_id, push_token, birth: String?
     let auto_login_yn: Bool
-    let login_date: String
-    let birth: String?
-    
 }
 
 // /api/v1/in/user/login ----------------
diff --git a/AcaMate/3. ViewModel/LoginViewModel.swift b/AcaMate/3. ViewModel/LoginViewModel.swift
index 1c82f47..de3a22a 100644
--- a/AcaMate/3. ViewModel/LoginViewModel.swift	
+++ b/AcaMate/3. ViewModel/LoginViewModel.swift	
@@ -20,6 +20,31 @@ class LoginViewModel: ObservableObject {
     func USERPAITEST() {
         @UserDefault(key: "token", defaultValue: "accToken") var accToken
         @UserDefault(key: "refresh", defaultValue: "refreshToken") var refresh
+        @UserDefault(key: "header", defaultValue: "headerValue") var headerValue
+
+        // UIDevice의 identifierForVendor를 사용하여 고유 식별자 (UUID)를 문자열로 반환
+        guard let deviceId = UIDevice.current.identifierForVendor?.uuidString else { return }
+        guard let bundleId = Bundle.main.bundleIdentifier else { return }
+        
+//
+        let request = APIRequest(path: "/api/v1/in/app",
+                                 parameters: ["type": "I", "specific": deviceId, "project": bundleId],
+                                 decoding: APIResponse<Header>.self)
+//
+        APIManager.shared.loadAPIData(request)
+            .sink { completion in
+                switch completion {
+                case .failure(let error):
+                    printLog("최종 에러: \(error)")
+                case .finished:
+                    break
+                }
+            } receiveValue: { response in
+//                guard let response = response as? APIResponse<Header> else { return }
+                printLog(response.data?.header)
+            }
+            .store(in: &cancellables)
+        /*
         let acc = "eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJzdWIiOiJBTVRlc3RFbWFpbDIwMjUwMzE4IiwianRpIjoiMjgwMjIwZDMtYzUwNS00YjFjLTgwMzgtZjBlNGJjYzM4MTE3IiwiZXhwIjoxNzQyMjYzMzgwLCJpc3MiOiJBY2FNYXRlIiwiYXVkIjoiaHR0cHM6L2RldmFjYW1hdGUuaXBzdGVpbi5teWRzLm1lIn0.f6kLKnsWhzlllSuYKxpFNuXuV4vOtJ2ox4IGSnxE67Y"
         
         refresh = "MRo+1HIvaPgECXrvwmGvtUpxSk7Pip7KtGSoWDqmjVA="
@@ -41,6 +66,7 @@ class LoginViewModel: ObservableObject {
                 printLog("최종 값 : \(user.name), \(user.birth)")
             }
             .store(in: &cancellables)
+         */
     }