diff --git a/frontend/components/admin/dashboard/charts/ChartRenderer.tsx b/frontend/components/admin/dashboard/charts/ChartRenderer.tsx
index 3cd5afbe..ddb8e919 100644
--- a/frontend/components/admin/dashboard/charts/ChartRenderer.tsx
+++ b/frontend/components/admin/dashboard/charts/ChartRenderer.tsx
@@ -7,6 +7,7 @@ import { transformQueryResultToChartData } from "../utils/chartDataTransform";
 import { ExternalDbConnectionAPI } from "@/lib/api/externalDbConnection";
 import { dashboardApi } from "@/lib/api/dashboard";
 import { applyQueryFilters } from "../utils/queryHelpers";
+import { getApiUrl } from "@/lib/utils/apiUrl";
 
 interface ChartRendererProps {
   element: DashboardElement;
@@ -84,7 +85,7 @@ export function ChartRenderer({ element, data, width, height = 200 }: ChartRende
               });
             }
 
-            const response = await fetch("http://localhost:8080/api/dashboards/fetch-external-api", {
+            const response = await fetch(getApiUrl("/api/dashboards/fetch-external-api"), {
               method: "POST",
               headers: {
                 "Content-Type": "application/json",
diff --git a/frontend/components/admin/dashboard/data-sources/ApiConfig.tsx b/frontend/components/admin/dashboard/data-sources/ApiConfig.tsx
index a8b2b74c..65905ea3 100644
--- a/frontend/components/admin/dashboard/data-sources/ApiConfig.tsx
+++ b/frontend/components/admin/dashboard/data-sources/ApiConfig.tsx
@@ -8,6 +8,7 @@ import { Button } from "@/components/ui/button";
 import { Plus, X, Play, AlertCircle } from "lucide-react";
 import { Select, SelectContent, SelectItem, SelectTrigger, SelectValue } from "@/components/ui/select";
 import { ExternalDbConnectionAPI, ExternalApiConnection } from "@/lib/api/externalDbConnection";
+import { getApiUrl } from "@/lib/utils/apiUrl";
 
 // 개별 API 소스 인터페이스
 interface ApiSource {
@@ -254,7 +255,7 @@ export function ApiConfig({ dataSource, onChange, onTestResult }: ApiConfigProps
       });
 
       // 백엔드 프록시를 통한 외부 API 호출 (CORS 우회)
-      const response = await fetch("http://localhost:8080/api/dashboards/fetch-external-api", {
+      const response = await fetch(getApiUrl("/api/dashboards/fetch-external-api"), {
         method: "POST",
         headers: {
           "Content-Type": "application/json",
diff --git a/frontend/components/admin/dashboard/data-sources/MultiApiConfig.tsx b/frontend/components/admin/dashboard/data-sources/MultiApiConfig.tsx
index 0a2d9dd4..05288c96 100644
--- a/frontend/components/admin/dashboard/data-sources/MultiApiConfig.tsx
+++ b/frontend/components/admin/dashboard/data-sources/MultiApiConfig.tsx
@@ -8,6 +8,7 @@ import { Label } from "@/components/ui/label";
 import { Select, SelectContent, SelectItem, SelectTrigger, SelectValue } from "@/components/ui/select";
 import { Plus, Trash2, Loader2, CheckCircle, XCircle } from "lucide-react";
 import { ExternalDbConnectionAPI, ExternalApiConnection } from "@/lib/api/externalDbConnection";
+import { getApiUrl } from "@/lib/utils/apiUrl";
 
 interface MultiApiConfigProps {
   dataSource: ChartDataSource;
@@ -220,7 +221,7 @@ export default function MultiApiConfig({ dataSource, onChange, onTestResult }: M
         }
       });
 
-      const response = await fetch("/api/dashboards/fetch-external-api", {
+      const response = await fetch(getApiUrl("/api/dashboards/fetch-external-api"), {
         method: "POST",
         headers: { "Content-Type": "application/json" },
         credentials: "include",
diff --git a/frontend/components/admin/dashboard/widgets/ListWidget.tsx b/frontend/components/admin/dashboard/widgets/ListWidget.tsx
index ab721c4b..f529c0a9 100644
--- a/frontend/components/admin/dashboard/widgets/ListWidget.tsx
+++ b/frontend/components/admin/dashboard/widgets/ListWidget.tsx
@@ -5,6 +5,7 @@ import { DashboardElement, QueryResult, ListWidgetConfig } from "../types";
 import { Button } from "@/components/ui/button";
 import { Table, TableBody, TableCell, TableHead, TableHeader, TableRow } from "@/components/ui/table";
 import { Card } from "@/components/ui/card";
+import { getApiUrl } from "@/lib/utils/apiUrl";
 
 interface ListWidgetProps {
   element: DashboardElement;
@@ -58,7 +59,7 @@ export function ListWidget({ element, onConfigUpdate }: ListWidgetProps) {
             });
           }
 
-          const response = await fetch("http://localhost:8080/api/dashboards/fetch-external-api", {
+          const response = await fetch(getApiUrl("/api/dashboards/fetch-external-api"), {
             method: "POST",
             headers: {
               "Content-Type": "application/json",
diff --git a/frontend/components/dashboard/widgets/ChartTestWidget.tsx b/frontend/components/dashboard/widgets/ChartTestWidget.tsx
index 412e4961..22d7f2db 100644
--- a/frontend/components/dashboard/widgets/ChartTestWidget.tsx
+++ b/frontend/components/dashboard/widgets/ChartTestWidget.tsx
@@ -5,6 +5,7 @@ import { DashboardElement, ChartDataSource, ChartData } from "@/components/admin
 import { Button } from "@/components/ui/button";
 import { Loader2, RefreshCw } from "lucide-react";
 import { applyColumnMapping } from "@/lib/utils/columnMapping";
+import { getApiUrl } from "@/lib/utils/apiUrl";
 import { Chart } from "@/components/admin/dashboard/charts/Chart";
 
 interface ChartTestWidgetProps {
@@ -127,7 +128,7 @@ export default function ChartTestWidget({ element }: ChartTestWidgetProps) {
       });
     }
 
-    const response = await fetch("/api/dashboards/fetch-external-api", {
+    const response = await fetch(getApiUrl("/api/dashboards/fetch-external-api"), {
       method: "POST",
       headers: { "Content-Type": "application/json" },
       credentials: "include",
diff --git a/frontend/components/dashboard/widgets/CustomMetricTestWidget.tsx b/frontend/components/dashboard/widgets/CustomMetricTestWidget.tsx
index 81dbc292..48a8c161 100644
--- a/frontend/components/dashboard/widgets/CustomMetricTestWidget.tsx
+++ b/frontend/components/dashboard/widgets/CustomMetricTestWidget.tsx
@@ -5,6 +5,7 @@ import { DashboardElement, ChartDataSource } from "@/components/admin/dashboard/
 import { Button } from "@/components/ui/button";
 import { Loader2, RefreshCw } from "lucide-react";
 import { applyColumnMapping } from "@/lib/utils/columnMapping";
+import { getApiUrl } from "@/lib/utils/apiUrl";
 import { Dialog, DialogContent, DialogDescription, DialogHeader, DialogTitle } from "@/components/ui/dialog";
 import { Table, TableBody, TableCell, TableHead, TableHeader, TableRow } from "@/components/ui/table";
 
@@ -241,8 +242,8 @@ export default function CustomMetricTestWidget({ element }: CustomMetricTestWidg
           });
 
           // 🆕 자동 집계 로직: 집계 컬럼 이름으로 판단 (count, 개수, sum, avg 등)
-          const isAggregated = numericColumns.some((col) => 
-            /count|개수|sum|합계|avg|평균|min|최소|max|최대|total|전체/i.test(col)
+          const isAggregated = numericColumns.some((col) =>
+            /count|개수|sum|합계|avg|평균|min|최소|max|최대|total|전체/i.test(col),
           );
 
           if (isAggregated && numericColumns.length > 0) {
@@ -553,7 +554,7 @@ export default function CustomMetricTestWidget({ element }: CustomMetricTestWidg
 
     console.log("🌐 API 호출:", source.endpoint, "파라미터:", Object.fromEntries(params));
 
-    const response = await fetch("http://localhost:8080/api/dashboards/fetch-external-api", {
+    const response = await fetch(getApiUrl("/api/dashboards/fetch-external-api"), {
       method: "POST",
       headers: {
         "Content-Type": "application/json",
@@ -746,7 +747,10 @@ export default function CustomMetricTestWidget({ element }: CustomMetricTestWidg
   return (
     <div className="flex h-full w-full flex-col bg-white p-2">
       {/* 콘텐츠 영역 - 스크롤 가능하도록 개선 */}
-      <div className="grid w-full gap-2 overflow-y-auto" style={{ gridTemplateColumns: "repeat(auto-fit, minmax(140px, 1fr))" }}>
+      <div
+        className="grid w-full gap-2 overflow-y-auto"
+        style={{ gridTemplateColumns: "repeat(auto-fit, minmax(140px, 1fr))" }}
+      >
         {/* 그룹별 카드 (활성화 시) */}
         {isGroupByMode &&
           groupedCards.map((card, index) => {
diff --git a/frontend/components/dashboard/widgets/ListTestWidget.tsx b/frontend/components/dashboard/widgets/ListTestWidget.tsx
index 3b9d7256..d10ee6be 100644
--- a/frontend/components/dashboard/widgets/ListTestWidget.tsx
+++ b/frontend/components/dashboard/widgets/ListTestWidget.tsx
@@ -7,6 +7,7 @@ import { Table, TableBody, TableCell, TableHead, TableHeader, TableRow } from "@
 import { Card } from "@/components/ui/card";
 import { Loader2, RefreshCw } from "lucide-react";
 import { applyColumnMapping } from "@/lib/utils/columnMapping";
+import { getApiUrl } from "@/lib/utils/apiUrl";
 
 interface ListTestWidgetProps {
   element: DashboardElement;
@@ -155,7 +156,7 @@ export function ListTestWidget({ element }: ListTestWidgetProps) {
       });
     }
 
-    const response = await fetch("http://localhost:8080/api/dashboards/fetch-external-api", {
+    const response = await fetch(getApiUrl("/api/dashboards/fetch-external-api"), {
       method: "POST",
       headers: {
         "Content-Type": "application/json",
diff --git a/frontend/components/dashboard/widgets/MapSummaryWidget.tsx b/frontend/components/dashboard/widgets/MapSummaryWidget.tsx
index 3ad09305..227cee80 100644
--- a/frontend/components/dashboard/widgets/MapSummaryWidget.tsx
+++ b/frontend/components/dashboard/widgets/MapSummaryWidget.tsx
@@ -3,6 +3,7 @@
 import React, { useEffect, useState } from "react";
 import dynamic from "next/dynamic";
 import { DashboardElement } from "@/components/admin/dashboard/types";
+import { getApiUrl } from "@/lib/utils/apiUrl";
 import "leaflet/dist/leaflet.css";
 
 // Leaflet 아이콘 경로 설정 (엑박 방지)
@@ -105,7 +106,7 @@ export default function MapSummaryWidget({ element }: MapSummaryWidgetProps) {
       setTableName(extractedTableName);
 
       const token = localStorage.getItem("authToken");
-      const response = await fetch("/api/dashboards/execute-query", {
+      const response = await fetch(getApiUrl("/api/dashboards/execute-query"), {
         method: "POST",
         headers: {
           "Content-Type": "application/json",
diff --git a/frontend/components/dashboard/widgets/MapTestWidgetV2.tsx b/frontend/components/dashboard/widgets/MapTestWidgetV2.tsx
index 767c4d01..cec70b7a 100644
--- a/frontend/components/dashboard/widgets/MapTestWidgetV2.tsx
+++ b/frontend/components/dashboard/widgets/MapTestWidgetV2.tsx
@@ -6,6 +6,7 @@ import { DashboardElement, ChartDataSource } from "@/components/admin/dashboard/
 import { Button } from "@/components/ui/button";
 import { Loader2, RefreshCw } from "lucide-react";
 import { applyColumnMapping } from "@/lib/utils/columnMapping";
+import { getApiUrl } from "@/lib/utils/apiUrl";
 import "leaflet/dist/leaflet.css";
 
 // Leaflet 아이콘 경로 설정 (엑박 방지)
@@ -185,7 +186,7 @@ export default function MapTestWidgetV2({ element }: MapTestWidgetV2Props) {
     }
 
     // 백엔드 프록시를 통해 API 호출
-    const response = await fetch("/api/dashboards/fetch-external-api", {
+    const response = await fetch(getApiUrl("/api/dashboards/fetch-external-api"), {
       method: "POST",
       headers: {
         "Content-Type": "application/json",
diff --git a/frontend/components/dashboard/widgets/RiskAlertTestWidget.tsx b/frontend/components/dashboard/widgets/RiskAlertTestWidget.tsx
index 71f5d6b7..6ac1765a 100644
--- a/frontend/components/dashboard/widgets/RiskAlertTestWidget.tsx
+++ b/frontend/components/dashboard/widgets/RiskAlertTestWidget.tsx
@@ -6,6 +6,7 @@ import { Button } from "@/components/ui/button";
 import { Badge } from "@/components/ui/badge";
 import { RefreshCw, AlertTriangle, Cloud, Construction, Database as DatabaseIcon } from "lucide-react";
 import { DashboardElement, ChartDataSource } from "@/components/admin/dashboard/types";
+import { getApiUrl } from "@/lib/utils/apiUrl";
 
 type AlertType = "accident" | "weather" | "construction" | "system" | "security" | "other";
 
@@ -138,7 +139,7 @@ export default function RiskAlertTestWidget({ element }: RiskAlertTestWidgetProp
     console.log("🔍 원본 source.queryParams:", source.queryParams);
     console.log("🔍 원본 source.headers:", source.headers);
 
-    const response = await fetch("http://localhost:8080/api/dashboards/fetch-external-api", {
+    const response = await fetch(getApiUrl("/api/dashboards/fetch-external-api"), {
       method: "POST",
       headers: { "Content-Type": "application/json" },
       body: JSON.stringify({