diff --git a/src/main/java/aromanticcat/umcproject/web/controller/AuthController.java b/src/main/java/aromanticcat/umcproject/web/controller/AuthController.java
index c9c1b46..30f95f9 100644
--- a/src/main/java/aromanticcat/umcproject/web/controller/AuthController.java
+++ b/src/main/java/aromanticcat/umcproject/web/controller/AuthController.java
@@ -6,17 +6,20 @@
 import aromanticcat.umcproject.security.jwt.JwtUtil;
 import aromanticcat.umcproject.security.jwt.RefreshToken;
 import aromanticcat.umcproject.security.jwt.RefreshTokenService;
-import io.swagger.v3.oas.annotations.Operation;
-import java.util.Optional;
+import io.swagger.annotations.ApiOperation;
 import lombok.AllArgsConstructor;
 import lombok.Data;
 import lombok.RequiredArgsConstructor;
 import lombok.extern.slf4j.Slf4j;
 import org.springframework.http.ResponseEntity;
+import org.springframework.web.bind.annotation.CrossOrigin;
 import org.springframework.web.bind.annotation.PostMapping;
 import org.springframework.web.bind.annotation.RequestHeader;
 import org.springframework.web.bind.annotation.RestController;
 
+import java.util.Optional;
+
+@CrossOrigin(origins = "https://dev.nangmancat.shop")
 @Slf4j
 @RestController
 @RequiredArgsConstructor
@@ -27,7 +30,7 @@ public class AuthController {
     private final JwtUtil jwtUtil;
 
     @PostMapping("token/logout")
-    @Operation(summary = "로그아웃 API", description = " 엑세스 토큰으로 현재 Redis 정보를 삭제하는 API입니다.")
+    @ApiOperation(value = "로그아웃 API", notes = " 엑세스 토큰으로 현재 Redis 정보를 삭제하는 API입니다.")
     public ApiResponse<StatusResponseDto> logout(@RequestHeader("Authorization") final String accessToken) {
 
         // 엑세스 토큰으로 현재 Redis 정보 삭제
@@ -36,7 +39,7 @@ public ApiResponse<StatusResponseDto> logout(@RequestHeader("Authorization") fin
     }
 
     @PostMapping("/token/refresh")
-    @Operation(summary = "액세스 토큰 재발급 API", description = " 엑세스 토큰을 재발급하는 API입니다.")
+    @ApiOperation(value = "액세스 토큰 재발급 API", notes = " 엑세스 토큰을 재발급하는 API입니다.")
     public ResponseEntity<TokenResponseStatus> refresh(@RequestHeader("Authorization") final String accessToken) {
 
         // 액세스 토큰으로 Refresh 토큰 객체를 조회
diff --git a/src/main/java/aromanticcat/umcproject/web/controller/FriendController.java b/src/main/java/aromanticcat/umcproject/web/controller/FriendController.java
index 6aba573..6c40173 100644
--- a/src/main/java/aromanticcat/umcproject/web/controller/FriendController.java
+++ b/src/main/java/aromanticcat/umcproject/web/controller/FriendController.java
@@ -5,21 +5,20 @@
 import aromanticcat.umcproject.converter.FriendConverter;
 import aromanticcat.umcproject.entity.Friend;
 import aromanticcat.umcproject.service.FriendService.FriendCommandService;
+import aromanticcat.umcproject.service.FriendService.FriendQueryService;
 import aromanticcat.umcproject.service.MemberService;
-import aromanticcat.umcproject.web.dto.Friend.FriendRequestDTO;
 import aromanticcat.umcproject.web.dto.Friend.FriendResponseDTO;
-import aromanticcat.umcproject.service.FriendService.FriendQueryService;
 import io.swagger.v3.oas.annotations.Operation;
 import io.swagger.v3.oas.annotations.Parameter;
 import io.swagger.v3.oas.annotations.Parameters;
 import lombok.RequiredArgsConstructor;
-import org.springframework.data.domain.Page;
 import org.springframework.http.HttpStatus;
 import org.springframework.web.bind.annotation.*;
 
 import java.util.List;
 import java.util.stream.Collectors;
 
+@CrossOrigin(origins = "https://dev.nangmancat.shop")
 @RestController
 @RequestMapping("/address-book")
 @RequiredArgsConstructor
diff --git a/src/main/java/aromanticcat/umcproject/web/controller/LetterController.java b/src/main/java/aromanticcat/umcproject/web/controller/LetterController.java
index cf52954..38bac7e 100644
--- a/src/main/java/aromanticcat/umcproject/web/controller/LetterController.java
+++ b/src/main/java/aromanticcat/umcproject/web/controller/LetterController.java
@@ -9,6 +9,7 @@
 import org.springframework.http.HttpStatus;
 import org.springframework.web.bind.annotation.*;
 
+@CrossOrigin(origins = "https://dev.nangmancat.shop")
 @RestController
 @RequiredArgsConstructor
 @RequestMapping("/letters")
diff --git a/src/main/java/aromanticcat/umcproject/web/controller/LetterboxController.java b/src/main/java/aromanticcat/umcproject/web/controller/LetterboxController.java
index 1b56750..e7a9260 100644
--- a/src/main/java/aromanticcat/umcproject/web/controller/LetterboxController.java
+++ b/src/main/java/aromanticcat/umcproject/web/controller/LetterboxController.java
@@ -12,6 +12,7 @@
 
 import java.util.List;
 
+@CrossOrigin(origins = "https://dev.nangmancat.shop")
 @RestController
 @RequiredArgsConstructor
 @RequestMapping("/letterboxes")
diff --git a/src/main/java/aromanticcat/umcproject/web/controller/MemberController.java b/src/main/java/aromanticcat/umcproject/web/controller/MemberController.java
index 6a71b77..6886c6c 100644
--- a/src/main/java/aromanticcat/umcproject/web/controller/MemberController.java
+++ b/src/main/java/aromanticcat/umcproject/web/controller/MemberController.java
@@ -5,14 +5,12 @@
 import aromanticcat.umcproject.entity.Member;
 import aromanticcat.umcproject.service.MemberService;
 import aromanticcat.umcproject.web.dto.MemberResponseDTO;
-import io.swagger.v3.oas.annotations.Operation;
+import io.swagger.annotations.ApiOperation;
 import lombok.RequiredArgsConstructor;
 import org.springframework.http.HttpStatus;
-import org.springframework.web.bind.annotation.PostMapping;
-import org.springframework.web.bind.annotation.RequestBody;
-import org.springframework.web.bind.annotation.RequestParam;
-import org.springframework.web.bind.annotation.RestController;
+import org.springframework.web.bind.annotation.*;
 
+@CrossOrigin(origins = "https://dev.nangmancat.shop")
 @RestController
 @RequiredArgsConstructor
 public class MemberController {
@@ -20,7 +18,7 @@ public class MemberController {
     private final MemberService service;
 
     @PostMapping("/signUp")
-    @Operation(summary = "회원가입 API", description = "회원가입 API입니다.")
+    @ApiOperation(value = "회원가입 API", notes = "회원가입 API입니다.")
     public ApiResponse<MemberResponseDTO.MemberJoinResultDTO> signup(@RequestBody String nickname,
                                                                      @RequestParam String email) {
         try {
@@ -33,7 +31,7 @@ public ApiResponse<MemberResponseDTO.MemberJoinResultDTO> signup(@RequestBody St
     }
 
     @PostMapping("/mypage/nickname")
-    @Operation(summary = "닉네임 변경 API", description = "닉네임 변경 API입니다.")
+    @ApiOperation(value = "닉네임 변경 API", notes = "닉네임 변경 API입니다.")
     public ApiResponse<MemberResponseDTO.MemberJoinResultDTO> updateNickname(@RequestBody String nickname) {
         try {
             Member user = service.updateNickname(nickname);
diff --git a/src/main/java/aromanticcat/umcproject/web/controller/MissionController.java b/src/main/java/aromanticcat/umcproject/web/controller/MissionController.java
index 274923c..fb12181 100644
--- a/src/main/java/aromanticcat/umcproject/web/controller/MissionController.java
+++ b/src/main/java/aromanticcat/umcproject/web/controller/MissionController.java
@@ -5,8 +5,6 @@
 import aromanticcat.umcproject.service.MissionService.MissionCommandService;
 import aromanticcat.umcproject.service.MissionService.MissionQueryService;
 import aromanticcat.umcproject.web.dto.Mission.MissionResponseDTO;
-import aromanticcat.umcproject.web.dto.nangmanLetterbox.NangmanCollectionResponseDTO;
-import aromanticcat.umcproject.web.dto.store.StoreResponseDTO;
 import io.swagger.v3.oas.annotations.Operation;
 import lombok.RequiredArgsConstructor;
 import org.springframework.http.HttpStatus;
@@ -14,6 +12,7 @@
 
 import java.util.List;
 
+@CrossOrigin(origins = "https://dev.nangmancat.shop")
 @RestController
 @RequestMapping("/missions")
 @RequiredArgsConstructor
diff --git a/src/main/java/aromanticcat/umcproject/web/controller/MyCollectionController.java b/src/main/java/aromanticcat/umcproject/web/controller/MyCollectionController.java
index 08550f5..8e6153d 100644
--- a/src/main/java/aromanticcat/umcproject/web/controller/MyCollectionController.java
+++ b/src/main/java/aromanticcat/umcproject/web/controller/MyCollectionController.java
@@ -7,13 +7,11 @@
 import io.swagger.v3.oas.annotations.Operation;
 import lombok.RequiredArgsConstructor;
 import org.springframework.http.HttpStatus;
-import org.springframework.web.bind.annotation.GetMapping;
-import org.springframework.web.bind.annotation.RequestMapping;
-import org.springframework.web.bind.annotation.RequestParam;
-import org.springframework.web.bind.annotation.RestController;
+import org.springframework.web.bind.annotation.*;
 
 import java.util.List;
 
+@CrossOrigin(origins = "https://dev.nangmancat.shop")
 @RestController
 @RequestMapping("/my-collection")
 @RequiredArgsConstructor
diff --git a/src/main/java/aromanticcat/umcproject/web/controller/MyDesignController.java b/src/main/java/aromanticcat/umcproject/web/controller/MyDesignController.java
index a22bc1e..0168f8f 100644
--- a/src/main/java/aromanticcat/umcproject/web/controller/MyDesignController.java
+++ b/src/main/java/aromanticcat/umcproject/web/controller/MyDesignController.java
@@ -2,7 +2,6 @@
 
 import aromanticcat.umcproject.apiPayload.ApiResponse;
 import aromanticcat.umcproject.service.myCollectionService.MyDesignService;
-import aromanticcat.umcproject.web.dto.Letterbox.LetterResponse;
 import aromanticcat.umcproject.web.dto.MyDesign.MyDesignGetResponse;
 import aromanticcat.umcproject.web.dto.MyDesign.MyDesignRequest;
 import io.swagger.annotations.ApiOperation;
@@ -14,6 +13,7 @@
 import java.io.IOException;
 import java.util.List;
 
+@CrossOrigin(origins = "https://dev.nangmancat.shop")
 @RestController
 @RequiredArgsConstructor
 @RequestMapping("/myDesign")
diff --git a/src/main/java/aromanticcat/umcproject/web/controller/NangmanCollectionController.java b/src/main/java/aromanticcat/umcproject/web/controller/NangmanCollectionController.java
index 18b412c..1434cb8 100644
--- a/src/main/java/aromanticcat/umcproject/web/controller/NangmanCollectionController.java
+++ b/src/main/java/aromanticcat/umcproject/web/controller/NangmanCollectionController.java
@@ -12,6 +12,7 @@
 
 import java.util.List;
 
+@CrossOrigin(origins = "https://dev.nangmancat.shop")
 @RestController
 @RequestMapping("/nangman-collection")
 @RequiredArgsConstructor
diff --git a/src/main/java/aromanticcat/umcproject/web/controller/NangmanLetterboxController.java b/src/main/java/aromanticcat/umcproject/web/controller/NangmanLetterboxController.java
index 9d1c31f..dc5076e 100644
--- a/src/main/java/aromanticcat/umcproject/web/controller/NangmanLetterboxController.java
+++ b/src/main/java/aromanticcat/umcproject/web/controller/NangmanLetterboxController.java
@@ -16,6 +16,7 @@
 import java.util.List;
 import java.util.stream.Collectors;
 
+@CrossOrigin(origins = "https://dev.nangmancat.shop")
 @RestController
 @RequestMapping("/nangman-letterbox")
 @RequiredArgsConstructor
diff --git a/src/main/java/aromanticcat/umcproject/web/controller/RootController.java b/src/main/java/aromanticcat/umcproject/web/controller/RootController.java
index 1a9dae4..875eca2 100644
--- a/src/main/java/aromanticcat/umcproject/web/controller/RootController.java
+++ b/src/main/java/aromanticcat/umcproject/web/controller/RootController.java
@@ -1,8 +1,10 @@
 package aromanticcat.umcproject.web.controller;
 
+import org.springframework.web.bind.annotation.CrossOrigin;
 import org.springframework.web.bind.annotation.GetMapping;
 import org.springframework.web.bind.annotation.RestController;
 
+@CrossOrigin(origins = "https://dev.nangmancat.shop")
 @RestController
 public class RootController {
 
diff --git a/src/main/java/aromanticcat/umcproject/web/controller/SlowLetterController.java b/src/main/java/aromanticcat/umcproject/web/controller/SlowLetterController.java
index 4ea52fb..9f06aa9 100644
--- a/src/main/java/aromanticcat/umcproject/web/controller/SlowLetterController.java
+++ b/src/main/java/aromanticcat/umcproject/web/controller/SlowLetterController.java
@@ -1,21 +1,20 @@
 package aromanticcat.umcproject.web.controller;
 
+import aromanticcat.umcproject.apiPayload.ApiResponse;
 import aromanticcat.umcproject.entity.SlowLetter;
 import aromanticcat.umcproject.service.slowLetter.SlowLetterService;
-import aromanticcat.umcproject.web.dto.Letterbox.LetterResponse;
 import aromanticcat.umcproject.web.dto.slowLetter.SlowLetterCalResponse;
 import aromanticcat.umcproject.web.dto.slowLetter.SlowLetterGetResponse;
 import aromanticcat.umcproject.web.dto.slowLetter.SlowLetterRequest;
 import aromanticcat.umcproject.web.dto.slowLetter.SlowLetterResponse;
 import io.swagger.annotations.ApiOperation;
-import aromanticcat.umcproject.apiPayload.ApiResponse;
 import lombok.RequiredArgsConstructor;
 import org.springframework.http.HttpStatus;
 import org.springframework.web.bind.annotation.*;
 
-import java.time.LocalDate;
 import java.util.List;
 
+@CrossOrigin(origins = "https://dev.nangmancat.shop")
 @RestController
 @RequiredArgsConstructor
 @RequestMapping("/slow_letters")
diff --git a/src/main/java/aromanticcat/umcproject/web/controller/StoreController.java b/src/main/java/aromanticcat/umcproject/web/controller/StoreController.java
index d0568cd..49129f4 100644
--- a/src/main/java/aromanticcat/umcproject/web/controller/StoreController.java
+++ b/src/main/java/aromanticcat/umcproject/web/controller/StoreController.java
@@ -11,6 +11,7 @@
 
 import java.util.List;
 
+@CrossOrigin(origins = "https://dev.nangmancat.shop")
 @RestController
 @RequestMapping("/store")
 @RequiredArgsConstructor