diff --git a/.github/workflows/deploy.yml b/.github/workflows/deploy.yml
index f0b620f..e969afb 100644
--- a/.github/workflows/deploy.yml
+++ b/.github/workflows/deploy.yml
@@ -40,6 +40,7 @@ jobs:
       - name: Copy JAR to EC2
         run: |
           scp -o StrictHostKeyChecking=no -i pirocheck.pem backend/pirocheck/build/libs/*.jar ubuntu@${{ secrets.EC2_HOST }}:/home/ubuntu/
+          
 
       - name: Restart Spring Boot on EC2
         run: |
@@ -106,4 +107,4 @@ jobs:
           AWS_S3_BUCKET: www.pirocheck.org
           AWS_ACCESS_KEY_ID: ${{ secrets.AWS_ACCESS_KEY_ID }}
           AWS_SECRET_ACCESS_KEY: ${{ secrets.AWS_SECRET_ACCESS_KEY }}
-          SOURCE_DIR: frontend/dist
\ No newline at end of file
+          SOURCE_DIR: frontend/dist
diff --git a/backend/pirocheck/src/main/java/backend/pirocheck/config/WebConfig.java b/backend/pirocheck/src/main/java/backend/pirocheck/config/WebConfig.java
index a6ae980..f67ed5b 100644
--- a/backend/pirocheck/src/main/java/backend/pirocheck/config/WebConfig.java
+++ b/backend/pirocheck/src/main/java/backend/pirocheck/config/WebConfig.java
@@ -10,7 +10,7 @@ public class WebConfig implements WebMvcConfigurer {
     @Override
     public void addCorsMappings(CorsRegistry registry) {
         registry.addMapping("/api/**") // 백엔드 API 요청에만 CORS 허용
-                .allowedOrigins("http://pirocheck.org:3000") // 프론트 배포 URL
+                .allowedOrigins("http://pirocheck.org") // 프론트 배포 URL
                 .allowedMethods("GET", "POST", "PUT", "DELETE") // 허용할 HTTP 메서드
                 .allowCredentials(true); // 세션 쿠키 주고받기 허용
     }
diff --git a/frontend/src/App.jsx b/frontend/src/App.jsx
index db217ff..50530e1 100644
--- a/frontend/src/App.jsx
+++ b/frontend/src/App.jsx
@@ -2,11 +2,11 @@ import React from "react";
 import { BrowserRouter, Routes, Route } from "react-router-dom";
 import Login from "./Login";
 import Home from "./Home";
-import Assignment from "./Assignment";
-import Deposit from "./Deposit";
+import Assignment from "./pages/generation/Assignment";
+import Deposit from "./pages/generation/Deposit";
 import Intro from "./Intro";
-import Admin from "./Admin";
-import Attendance from "./Attendance";
+import Admin from "./pages/admin/Admin";
+import Attendance from "./pages/generation/Attendance";
 
 function App() {
   return (
diff --git a/frontend/src/api/api.js b/frontend/src/api/api.js
new file mode 100644
index 0000000..9ba4ee2
--- /dev/null
+++ b/frontend/src/api/api.js
@@ -0,0 +1,19 @@
+import axios from "axios";
+
+const api = axios.create({
+  baseURL: "http://api.pirocheck.org:8080/api",
+  withCredentials: true,
+});
+
+// 401 오류 시 로그인 페이지로 리다이렉트
+api.interceptors.response.use(
+  (response) => response,
+  (error) => {
+    if (error.response?.status === 401) {
+      window.location.href = "/login";
+    }
+    return Promise.reject(error);
+  }
+);
+
+export default api;
diff --git a/frontend/src/api/assignment.js b/frontend/src/api/assignment.js
index a576b62..cf1a11a 100644
--- a/frontend/src/api/assignment.js
+++ b/frontend/src/api/assignment.js
@@ -1,8 +1,6 @@
-import axios from "axios";
+import api from "./api";
 
 export const fetchAssignmentsByUser = async (userId) => {
-  const res = await axios.get(`/api/assignment/grouped/${userId}`, {
-    withCredentials: true
-  });
+  const res = await api.get(`/assignment/grouped/${userId}`);
   return res.data;
 };
diff --git a/frontend/src/api/user.js b/frontend/src/api/user.js
index 3964bac..12e057a 100644
--- a/frontend/src/api/user.js
+++ b/frontend/src/api/user.js
@@ -1,5 +1,5 @@
 export const loginUser = async ({ name, password }) => {
-  const res = await fetch("/api/login", {
+  const res = await fetch("http://api.pirocheck.org:8080/api/login", {
     method: "POST",
     headers: {
       "Content-Type": "application/json",
diff --git a/frontend/src/Admin.jsx b/frontend/src/pages/admin/Admin.jsx
similarity index 100%
rename from frontend/src/Admin.jsx
rename to frontend/src/pages/admin/Admin.jsx
diff --git a/frontend/src/Assignment.jsx b/frontend/src/pages/generation/Assignment.jsx
similarity index 64%
rename from frontend/src/Assignment.jsx
rename to frontend/src/pages/generation/Assignment.jsx
index cff140f..d1c0115 100644
--- a/frontend/src/Assignment.jsx
+++ b/frontend/src/pages/generation/Assignment.jsx
@@ -1,9 +1,10 @@
 import React, { useEffect, useState } from "react";
-import WeeklyListBlock from "./components/WeeklyListBlock";
-import Header from "./components/Header";
-import AssignmentInfoBlock from "./components/AssignmentInfoBlock";
+import WeeklyListBlock from "../../components/WeeklyListBlock";
+import Header from "../../components/Header";
+import AssignmentInfoBlock from "../../components/AssignmentInfoBlock";
 import styles from "./Assignment.module.css";
-import { mapStatus } from "./utils/AssignmentStatus.js";
+import { mapStatus } from "../../utils/AssignmentStatus.js";
+import { fetchAssignmentsByUser } from "../../api/assignment.js";
 
 const Assignment = () => {
   const [weeks, setWeeks] = useState([]);
@@ -16,18 +17,18 @@ const Assignment = () => {
     if (!userId) return;
 
     fetchAssignmentsByUser(userId)
-    .then((weekData) => {
-      const formatted = weekData.map((weekItem) => ({
-        label: `${weekItem.week}주차 ${weekItem.title}`,
-        details: weekItem.days.map((dayItem) => ({
-          day: dayItem.day,
-          subject: weekItem.title,
-          tasks: dayItem.details.map((task) => ({
-            label: task.assignmentName,
-            status: mapStatus(task.status),
+      .then((weekData) => {
+        const formatted = weekData.map((weekItem) => ({
+          label: `${weekItem.week}주차 ${weekItem.title}`,
+          details: weekItem.days.map((dayItem) => ({
+            day: dayItem.day,
+            subject: weekItem.title,
+            tasks: dayItem.details.map((task) => ({
+              label: task.assignmentName,
+              status: mapStatus(task.status),
+            })),
           })),
-        })),
-      }));
+        }));
 
         setWeeks(formatted);
 
@@ -63,4 +64,3 @@ const Assignment = () => {
 };
 
 export default Assignment;
-
diff --git a/frontend/src/Assignment.module.css b/frontend/src/pages/generation/Assignment.module.css
similarity index 100%
rename from frontend/src/Assignment.module.css
rename to frontend/src/pages/generation/Assignment.module.css
diff --git a/frontend/src/Attendance.jsx b/frontend/src/pages/generation/Attendance.jsx
similarity index 95%
rename from frontend/src/Attendance.jsx
rename to frontend/src/pages/generation/Attendance.jsx
index 1abe9db..dce08b1 100644
--- a/frontend/src/Attendance.jsx
+++ b/frontend/src/pages/generation/Attendance.jsx
@@ -1,9 +1,9 @@
 import { useEffect, useState } from "react";
-import Header from "./components/Header";
-import InputBlock from "./components/InputBlock";
-import AttendanceWeekInfo from "./components/AttendanceWeekInfo";
+import Header from "../../components/Header";
+import InputBlock from "../../components/InputBlock";
+import AttendanceWeekInfo from "../../components/AttendanceWeekInfo";
 import styles from "./Attendance.module.css";
-import axios from "axios";
+import api from "../../api/api";
 
 const Attendance = () => {
   const [attendanceCode, setAttendanceCode] = useState([""]);
@@ -88,7 +88,7 @@ const Attendance = () => {
       if (!userId) return;
 
       // 유저 전체 출석 데이터 불러오기
-      const res = await axios.get(`/api/attendance/user`, {
+      const res = await api.get(`/attendance/user`, {
         params: { userId },
         withCredentials: true, // 세션 기반 인증 요청처리
       });
@@ -108,7 +108,7 @@ const Attendance = () => {
       if (!userId) return;
 
       const today = new Date().toISOString().split("T")[0]; // YYYY-MM-DD
-      const res = await axios.get(`/api/attendance/user/date`, {
+      const res = await api.get(`/attendance/user/date`, {
         params: { userId, date: today },
         withCredentials: true, // 세션 기반 인증 요청처리
       });
@@ -151,8 +151,10 @@ const Attendance = () => {
       if (!userId) return;
 
       // 유저가 입력한 출석 코드 서버에 전달(서버에서 출석코드 체크)
+
       const res = await axios.post(
         "/api/attendance/mark",
+
         {
           userId,
           code: attendanceCode[0],
diff --git a/frontend/src/Attendance.module.css b/frontend/src/pages/generation/Attendance.module.css
similarity index 100%
rename from frontend/src/Attendance.module.css
rename to frontend/src/pages/generation/Attendance.module.css
diff --git a/frontend/src/Deposit.jsx b/frontend/src/pages/generation/Deposit.jsx
similarity index 88%
rename from frontend/src/Deposit.jsx
rename to frontend/src/pages/generation/Deposit.jsx
index 500de27..8b9c17b 100644
--- a/frontend/src/Deposit.jsx
+++ b/frontend/src/pages/generation/Deposit.jsx
@@ -1,7 +1,8 @@
-import Header from "./components/Header";
+import Header from "../../components/Header";
 import styles from "./Deposit.module.css";
 import axios from "axios";
 import { useEffect, useState } from "react";
+import api from "../../api/api";
 
 const Deposit = () => {
   const [deposit, setDeposit] = useState(null);
@@ -12,10 +13,8 @@ const Deposit = () => {
 
     if (!userId) return;
 
-    axios
-      .get(`/api/deposit/${userId}`, {
-        withCredentials: true, // 세션 쿠키 포함
-      })
+    api
+      .get(`/deposit/${userId}`)
       .then((res) => setDeposit(res.data))
       .catch((err) => {
         alert("보증금 정보를 불러오지 못했습니다.");
diff --git a/frontend/src/Deposit.module.css b/frontend/src/pages/generation/Deposit.module.css
similarity index 100%
rename from frontend/src/Deposit.module.css
rename to frontend/src/pages/generation/Deposit.module.css