diff --git a/src/main/java/postman/bottler/keyword/controller/RecommendationController.java b/src/main/java/postman/bottler/keyword/controller/RecommendationController.java
index 3e84e0ac..586a151f 100644
--- a/src/main/java/postman/bottler/keyword/controller/RecommendationController.java
+++ b/src/main/java/postman/bottler/keyword/controller/RecommendationController.java
@@ -1,36 +1,41 @@
 package postman.bottler.keyword.controller;
 
 import io.swagger.v3.oas.annotations.Operation;
+import io.swagger.v3.oas.annotations.tags.Tag;
+import java.util.HashMap;
 import java.util.List;
+import java.util.Map;
 import lombok.RequiredArgsConstructor;
 import org.springframework.http.ResponseEntity;
-import org.springframework.security.core.annotation.AuthenticationPrincipal;
 import org.springframework.web.bind.annotation.GetMapping;
 import org.springframework.web.bind.annotation.PostMapping;
 import org.springframework.web.bind.annotation.RequestMapping;
 import org.springframework.web.bind.annotation.RestController;
 import postman.bottler.keyword.service.AsyncRecommendationService;
 import postman.bottler.keyword.service.RedisLetterService;
-import postman.bottler.user.auth.CustomUserDetails;
+import postman.bottler.user.service.UserService;
 
 @RestController
 @RequiredArgsConstructor
 @RequestMapping("/test/recommendations")
+@Tag(name = "테스트용")
 public class RecommendationController {
 
     private final AsyncRecommendationService asyncRecommendationService;
     private final RedisLetterService redisLetterService;
+    private final UserService userService;
 
     @Operation(
             summary = "키워드 편지 추천 요청",
             description = "현재 3개가 추천됩니다"
     )
     @PostMapping("/process")
-    public ResponseEntity<String> processRecommendation(@AuthenticationPrincipal CustomUserDetails userDetails) {
+    public ResponseEntity<String> processRecommendation() {
         // 비동기 추천 작업 시작
-        asyncRecommendationService.processRecommendationForUser(userDetails.getUserId());
+        List<Long> userIds = userService.getAllUserIds();
+        userIds.forEach(asyncRecommendationService::processRecommendationForUser);
 
-        return ResponseEntity.ok("Recommendation process started for user " + userDetails.getUserId());
+        return ResponseEntity.ok("Recommendation process started for user " + userIds);
     }
 
     @Operation(
@@ -38,8 +43,12 @@ public ResponseEntity<String> processRecommendation(@AuthenticationPrincipal Cus
             description = "현재 추천된 편지의 id 들을 반환합니다"
     )
     @GetMapping("/result")
-    public ResponseEntity<List<Long>> getRecommendationResult(@AuthenticationPrincipal CustomUserDetails userDetails) {
-        List<Long> result = redisLetterService.getRecommendations(userDetails.getUserId());
+    public ResponseEntity<Map<Long, List<Long>>> getRecommendationResult() {
+        List<Long> userIds = userService.getAllUserIds();
+        Map<Long, List<Long>> result = new HashMap<>();
+        userIds.forEach(userId ->
+                result.put(userId, redisLetterService.getRecommendations(userId))
+        );
 
         return ResponseEntity.ok(result);
     }
@@ -49,10 +58,10 @@ public ResponseEntity<List<Long>> getRecommendationResult(@AuthenticationPrincip
             description = "기존 추천된 편지 중 가장 오래된 편지를 밀어내고 추천 후보 중 조건에 맞는 편지 id를 등록해줍니다."
     )
     @PostMapping("/update")
-    public ResponseEntity<String> updateRecommendationsFromTemp(
-            @AuthenticationPrincipal CustomUserDetails userDetails) {
+    public ResponseEntity<String> updateRecommendationsFromTemp() {
+        List<Long> userIds = userService.getAllUserIds();
         try {
-            redisLetterService.updateRecommendationsFromTemp(userDetails.getUserId());
+            userIds.forEach(redisLetterService::updateRecommendationsFromTemp);
             return ResponseEntity.ok("추천 키워드 편지 변경 완료");
         } catch (Exception e) {
             return ResponseEntity.status(500).body("Failed to update recommendations: " + e.getMessage());
@@ -65,8 +74,11 @@ public ResponseEntity<String> updateRecommendationsFromTemp(
                     + "\n 추천할 때 편지가 삭제되어 있을 가능성이 있기 떄문에 검증 후 순차적으로 이중 하나를 사용자에게 추천합니다."
     )
     @GetMapping("/temp")
-    public ResponseEntity<List<Long>> getRecommendTemp(@AuthenticationPrincipal CustomUserDetails userDetails) {
-        List<Long> result = redisLetterService.getRecommendedTemp(userDetails.getUserId());
+    public ResponseEntity<Map<Long, List<Long>>> getRecommendTemp() {
+        List<Long> userIds = userService.getAllUserIds();
+        Map<Long, List<Long>> result = new HashMap<>();
+        userIds.forEach(userId -> result.put(userId, redisLetterService.getRecommendations(userId))
+        );
         return ResponseEntity.ok(result);
     }
 }