diff --git a/react/src/api/service.api.ts b/react/src/api/service.api.ts
new file mode 100644
index 0000000..2c397ef
--- /dev/null
+++ b/react/src/api/service.api.ts
@@ -0,0 +1,81 @@
+import { apiClient } from "./client";
+import type { ApiResponse, PaginatedResponse } from "@/types/api";
+import type {
+  ServiceListRequest,
+  ServiceSummary,
+  ServiceDetail,
+  ApiKeyResponse,
+  CreateServiceRequest,
+  CreateServiceResponse,
+  UpdateServiceRequest,
+  RegisterFcmRequest,
+  RegisterApnsRequest,
+} from "@/features/service/types";
+
+/** 서비스 목록 조회 */
+export function fetchServices(data: ServiceListRequest) {
+  return apiClient.post<PaginatedResponse<ServiceSummary>>(
+    "/v1/in/service/list",
+    data,
+  );
+}
+
+/** 서비스 상세 조회 */
+export function fetchServiceDetail(serviceCode: string) {
+  return apiClient.post<ApiResponse<ServiceDetail>>(
+    `/v1/in/service/${serviceCode}`,
+  );
+}
+
+/** API Key 전체 조회 (마스킹 해제) */
+export function fetchApiKey(serviceCode: string) {
+  return apiClient.post<ApiResponse<ApiKeyResponse>>(
+    `/v1/in/service/${serviceCode}/apikey/view`,
+  );
+}
+
+/** 서비스 생성 */
+export function createService(data: CreateServiceRequest) {
+  return apiClient.post<ApiResponse<CreateServiceResponse>>(
+    "/v1/in/service/create",
+    data,
+  );
+}
+
+/** 서비스 수정 */
+export function updateService(data: UpdateServiceRequest) {
+  return apiClient.post<ApiResponse<null>>(
+    "/v1/in/service/update",
+    data,
+  );
+}
+
+/** FCM 인증서 등록 */
+export function registerFcm(serviceCode: string, data: RegisterFcmRequest) {
+  return apiClient.post<ApiResponse<null>>(
+    `/v1/in/service/${serviceCode}/fcm`,
+    data,
+  );
+}
+
+/** FCM 인증서 삭제 */
+export function deleteFcm(serviceCode: string) {
+  return apiClient.post<ApiResponse<null>>(
+    `/v1/in/service/${serviceCode}/fcm/delete`,
+  );
+}
+
+/** APNs 인증서 등록 */
+export function registerApns(serviceCode: string, data: RegisterApnsRequest) {
+  return apiClient.post<ApiResponse<null>>(
+    `/v1/in/service/${serviceCode}/apns`,
+    data,
+  );
+}
+
+/** APNs 인증서 삭제 */
+export function deleteApns(serviceCode: string) {
+  return apiClient.post<ApiResponse<null>>(
+    `/v1/in/service/${serviceCode}/apns/delete`,
+  );
+}
diff --git a/react/src/components/common/Pagination.tsx b/react/src/components/common/Pagination.tsx
index 37ac93d..bdc9099 100644
--- a/react/src/components/common/Pagination.tsx
+++ b/react/src/components/common/Pagination.tsx
@@ -14,8 +14,9 @@ export default function Pagination({
   pageSize,
   onPageChange,
 }: PaginationProps) {
-  const start = (currentPage - 1) * pageSize + 1;
-  const end = Math.min(currentPage * pageSize, totalItems);
+  const safeTotal = totalItems ?? 0;
+  const start = safeTotal > 0 ? (currentPage - 1) * pageSize + 1 : 0;
+  const end = Math.min(currentPage * pageSize, safeTotal);
 
   /** 표시할 페이지 번호 목록 (최대 5개) */
   const getPageNumbers = () => {
@@ -33,9 +34,9 @@ export default function Pagination({
   if (totalPages <= 0) return null;
 
   return (
-    <div className="flex items-center justify-between px-2 py-3">
+    <div className="flex items-center justify-between px-6 py-3">
       <span className="text-sm text-gray-500">
-        총 {totalItems.toLocaleString()}건 중 {start.toLocaleString()}-{end.toLocaleString()} 표시
+        총 {safeTotal.toLocaleString()}건 중 {start.toLocaleString()}-{end.toLocaleString()} 표시
       </span>
 
       <div className="flex items-center gap-1">
diff --git a/react/src/features/dashboard/types.ts b/react/src/features/dashboard/types.ts
index dd9ad9b..5e7eb9d 100644
--- a/react/src/features/dashboard/types.ts
+++ b/react/src/features/dashboard/types.ts
@@ -19,6 +19,9 @@ export interface DashboardKpi {
   device_count: number;
   service_count: number;
   sent_change_rate: number; // 전일 대비 증감률 (%)
+  success_rate_change: number; // 성공률 전일 대비 변화분 (pp)
+  device_count_change: number; // 등록 기기 수 전일 대비 변화량
+  today_sent_change_rate: number; // 오늘 발송 전일 대비 증감률 (%)
 }
 
 // 일별 발송 추이
diff --git a/react/src/features/service/components/PlatformManagement.tsx b/react/src/features/service/components/PlatformManagement.tsx
index 52a1a66..5950c23 100644
--- a/react/src/features/service/components/PlatformManagement.tsx
+++ b/react/src/features/service/components/PlatformManagement.tsx
@@ -1,6 +1,37 @@
 import { useState, useRef, useEffect } from "react";
 import { toast } from "sonner";
 import type { ServiceDetail } from "../types";
+import {
+  registerFcm,
+  deleteFcm,
+  registerApns,
+  deleteApns,
+} from "@/api/service.api";
+
+// 파일을 텍스트로 읽기 (FCM JSON, APNs p8)
+function readFileAsText(file: File): Promise<string> {
+  return new Promise((resolve, reject) => {
+    const reader = new FileReader();
+    reader.onload = () => resolve(reader.result as string);
+    reader.onerror = () => reject(new Error("파일 읽기 실패"));
+    reader.readAsText(file);
+  });
+}
+
+// 파일을 Base64로 읽기 (APNs p12)
+function readFileAsBase64(file: File): Promise<string> {
+  return new Promise((resolve, reject) => {
+    const reader = new FileReader();
+    reader.onload = () => {
+      const dataUrl = reader.result as string;
+      // "data:application/...;base64," 접두사 제거
+      const base64 = dataUrl.split(",")[1] ?? "";
+      resolve(base64);
+    };
+    reader.onerror = () => reject(new Error("파일 읽기 실패"));
+    reader.readAsDataURL(file);
+  });
+}
 
 // Apple 로고 SVG
 const AppleLogo = ({ className }: { className?: string }) => (
@@ -112,29 +143,222 @@ function PlatformMenu({
 
 interface PlatformManagementProps {
   service: ServiceDetail;
+  onRefresh: () => void;
 }
 
 export default function PlatformManagement({
   service,
+  onRefresh,
 }: PlatformManagementProps) {
   const [deleteTarget, setDeleteTarget] = useState<string | null>(null);
   const [editTarget, setEditTarget] = useState<"android" | "ios" | null>(null);
   const [iosAuthType, setIosAuthType] = useState<"p8" | "p12">("p8");
   const [selectedFile, setSelectedFile] = useState<File | null>(null);
   const [showPassword, setShowPassword] = useState(false);
-  const [deletedPlatforms, setDeletedPlatforms] = useState<Set<string>>(new Set());
-  const [addedPlatforms, setAddedPlatforms] = useState<Set<string>>(new Set());
   const [showAddModal, setShowAddModal] = useState(false);
   const [addTab, setAddTab] = useState<"android" | "ios">("android");
   const [addIosAuthType, setAddIosAuthType] = useState<"p8" | "p12">("p8");
   const [addFile, setAddFile] = useState<File | null>(null);
   const [addShowPassword, setAddShowPassword] = useState(false);
+  const [submitting, setSubmitting] = useState(false);
 
-  const androidVisible = (service.platforms.android.registered || addedPlatforms.has("android")) && !deletedPlatforms.has("android");
-  const iosVisible = (service.platforms.ios.registered || addedPlatforms.has("ios")) && !deletedPlatforms.has("ios");
+  // 추가 모달 폼 상태
+  const [addBundleId, setAddBundleId] = useState("");
+  const [addKeyId, setAddKeyId] = useState("");
+  const [addTeamId, setAddTeamId] = useState("");
+  const [addCertPassword, setAddCertPassword] = useState("");
+
+  // 수정 모달 폼 상태
+  const [editBundleId, setEditBundleId] = useState("");
+  const [editKeyId, setEditKeyId] = useState("");
+  const [editTeamId, setEditTeamId] = useState("");
+  const [editCertPassword, setEditCertPassword] = useState("");
+
+  const androidVisible = !!service.platforms?.android?.registered;
+  const iosVisible = !!service.platforms?.ios?.registered;
   const allRegistered = androidVisible && iosVisible;
   const noneRegistered = !androidVisible && !iosVisible;
 
+  // 추가 모달 폼 초기화
+  const resetAddForm = () => {
+    setAddFile(null);
+    setAddShowPassword(false);
+    setAddBundleId("");
+    setAddKeyId("");
+    setAddTeamId("");
+    setAddCertPassword("");
+  };
+
+  // 수정 모달 폼 초기화
+  const resetEditForm = () => {
+    setSelectedFile(null);
+    setShowPassword(false);
+    setEditBundleId("");
+    setEditKeyId("");
+    setEditTeamId("");
+    setEditCertPassword("");
+  };
+
+  // 플랫폼 추가 핸들러
+  const handleAdd = async () => {
+    if (!addFile) {
+      toast.error("인증서 파일을 업로드해주세요.");
+      return;
+    }
+
+    const isAndroidTab = addTab === "android";
+    setSubmitting(true);
+
+    try {
+      if (isAndroidTab) {
+        // Android: FCM JSON
+        const text = await readFileAsText(addFile);
+        await registerFcm(service.serviceCode, { serviceAccountJson: text });
+      } else if (addIosAuthType === "p8") {
+        // iOS p8
+        if (!addBundleId.trim()) {
+          toast.error("Bundle ID를 입력해주세요.");
+          setSubmitting(false);
+          return;
+        }
+        if (!addKeyId.trim() || addKeyId.trim().length !== 10) {
+          toast.error("Key ID는 정확히 10자여야 합니다.");
+          setSubmitting(false);
+          return;
+        }
+        if (!addTeamId.trim() || addTeamId.trim().length !== 10) {
+          toast.error("Team ID는 정확히 10자여야 합니다.");
+          setSubmitting(false);
+          return;
+        }
+        const privateKey = await readFileAsText(addFile);
+        await registerApns(service.serviceCode, {
+          authType: "p8",
+          bundleId: addBundleId.trim(),
+          keyId: addKeyId.trim(),
+          teamId: addTeamId.trim(),
+          privateKey,
+        });
+      } else {
+        // iOS p12
+        if (!addBundleId.trim()) {
+          toast.error("Bundle ID를 입력해주세요.");
+          setSubmitting(false);
+          return;
+        }
+        const certificateBase64 = await readFileAsBase64(addFile);
+        await registerApns(service.serviceCode, {
+          authType: "p12",
+          bundleId: addBundleId.trim(),
+          certificateBase64,
+          certPassword: addCertPassword,
+        });
+      }
+
+      const name = isAndroidTab ? "Android" : "iOS";
+      toast.success(`${name} 플랫폼이 추가되었습니다.`);
+      setShowAddModal(false);
+      resetAddForm();
+      onRefresh();
+    } catch (err: unknown) {
+      const msg =
+        err instanceof Error ? err.message : "플랫폼 추가에 실패했습니다.";
+      toast.error(msg);
+    } finally {
+      setSubmitting(false);
+    }
+  };
+
+  // 인증서 수정(덮어쓰기) 핸들러
+  const handleEdit = async () => {
+    if (!editTarget || !selectedFile) {
+      toast.error("인증서 파일을 업로드해주세요.");
+      return;
+    }
+
+    const isAndroid = editTarget === "android";
+    setSubmitting(true);
+
+    try {
+      if (isAndroid) {
+        const text = await readFileAsText(selectedFile);
+        await registerFcm(service.serviceCode, { serviceAccountJson: text });
+      } else if (iosAuthType === "p8") {
+        if (!editBundleId.trim()) {
+          toast.error("Bundle ID를 입력해주세요.");
+          setSubmitting(false);
+          return;
+        }
+        if (!editKeyId.trim() || editKeyId.trim().length !== 10) {
+          toast.error("Key ID는 정확히 10자여야 합니다.");
+          setSubmitting(false);
+          return;
+        }
+        if (!editTeamId.trim() || editTeamId.trim().length !== 10) {
+          toast.error("Team ID는 정확히 10자여야 합니다.");
+          setSubmitting(false);
+          return;
+        }
+        const privateKey = await readFileAsText(selectedFile);
+        await registerApns(service.serviceCode, {
+          authType: "p8",
+          bundleId: editBundleId.trim(),
+          keyId: editKeyId.trim(),
+          teamId: editTeamId.trim(),
+          privateKey,
+        });
+      } else {
+        if (!editBundleId.trim()) {
+          toast.error("Bundle ID를 입력해주세요.");
+          setSubmitting(false);
+          return;
+        }
+        const certificateBase64 = await readFileAsBase64(selectedFile);
+        await registerApns(service.serviceCode, {
+          authType: "p12",
+          bundleId: editBundleId.trim(),
+          certificateBase64,
+          certPassword: editCertPassword,
+        });
+      }
+
+      toast.success("인증서가 저장되었습니다.");
+      setEditTarget(null);
+      resetEditForm();
+      onRefresh();
+    } catch (err: unknown) {
+      const msg =
+        err instanceof Error ? err.message : "인증서 저장에 실패했습니다.";
+      toast.error(msg);
+    } finally {
+      setSubmitting(false);
+    }
+  };
+
+  // 플랫폼 삭제 핸들러
+  const handleDelete = async () => {
+    if (!deleteTarget) return;
+
+    setSubmitting(true);
+    try {
+      if (deleteTarget === "Android") {
+        await deleteFcm(service.serviceCode);
+      } else {
+        await deleteApns(service.serviceCode);
+      }
+
+      toast.success(`${deleteTarget} 플랫폼이 삭제되었습니다.`);
+      setDeleteTarget(null);
+      onRefresh();
+    } catch (err: unknown) {
+      const msg =
+        err instanceof Error ? err.message : "플랫폼 삭제에 실패했습니다.";
+      toast.error(msg);
+    } finally {
+      setSubmitting(false);
+    }
+  };
+
   return (
     <>
       <div className="bg-white border border-gray-200 rounded-lg shadow-sm">
@@ -144,11 +368,9 @@ export default function PlatformManagement({
           <button
             disabled={allRegistered}
             onClick={() => {
-              // 삭제된(미등록) 플랫폼 중 첫 번째를 기본 탭으로 선택
               const androidAvail = !androidVisible;
               setAddTab(androidAvail ? "android" : "ios");
-              setAddFile(null);
-              setAddShowPassword(false);
+              resetAddForm();
               setShowAddModal(true);
             }}
             className={`border px-4 py-2 rounded text-sm font-medium flex items-center gap-2 transition-colors ${
@@ -182,15 +404,15 @@ export default function PlatformManagement({
                   Google FCM을 통한 Android 기기 관리
                 </p>
                 <CredentialStatusBadge
-                  status={service.platforms.android.credentialStatus}
-                  reason={service.platforms.android.statusReason}
+                  status={service.platforms?.android?.credentialStatus ?? null}
+                  reason={service.platforms?.android?.statusReason ?? null}
                 />
               </div>
             </div>
             <PlatformMenu
               onEdit={() => {
                 setEditTarget("android");
-                setSelectedFile(null);
+                resetEditForm();
               }}
               onDelete={() => setDeleteTarget("Android")}
             />
@@ -210,16 +432,20 @@ export default function PlatformManagement({
                   Apple APNs를 통한 iOS 기기 관리
                 </p>
                 <CredentialStatusBadge
-                  status={service.platforms.ios.credentialStatus}
-                  reason={service.platforms.ios.statusReason}
+                  status={service.platforms?.ios?.credentialStatus ?? null}
+                  reason={service.platforms?.ios?.statusReason ?? null}
                 />
               </div>
             </div>
             <PlatformMenu
               onEdit={() => {
                 setEditTarget("ios");
-                setSelectedFile(null);
-                setShowPassword(false);
+                resetEditForm();
+                // 기존 인증 방식이 있으면 프리셋
+                if (service.apnsAuthType) setIosAuthType(service.apnsAuthType);
+                if (service.apnsBundleId) setEditBundleId(service.apnsBundleId);
+                if (service.apnsKeyId) setEditKeyId(service.apnsKeyId);
+                if (service.apnsTeamId) setEditTeamId(service.apnsTeamId);
               }}
               onDelete={() => setDeleteTarget("iOS")}
             />
@@ -260,7 +486,7 @@ export default function PlatformManagement({
           <div className="fixed inset-0 z-50 flex items-center justify-center">
             <div
               className="absolute inset-0 bg-black/40"
-              onClick={() => setShowAddModal(false)}
+              onClick={() => !submitting && setShowAddModal(false)}
             />
             <div className="relative bg-white rounded-xl shadow-2xl max-w-lg w-full mx-4 p-6 border border-gray-200">
               {/* 헤더 */}
@@ -279,7 +505,7 @@ export default function PlatformManagement({
                   </div>
                 </div>
                 <button
-                  onClick={() => setShowAddModal(false)}
+                  onClick={() => !submitting && setShowAddModal(false)}
                   className="text-gray-400 hover:text-gray-600 transition-colors p-1 rounded hover:bg-gray-100"
                 >
                   <span className="material-symbols-outlined text-xl">close</span>
@@ -295,7 +521,7 @@ export default function PlatformManagement({
                       setAddFile(null);
                     }
                   }}
-                  disabled={!androidAvail}
+                  disabled={!androidAvail || submitting}
                   className={`flex items-center gap-2 px-4 py-2.5 text-sm font-medium border-b-2 transition-colors -mb-px ${
                     !androidAvail
                       ? "text-gray-300 border-transparent cursor-not-allowed"
@@ -317,7 +543,7 @@ export default function PlatformManagement({
                       setAddFile(null);
                     }
                   }}
-                  disabled={!iosAvail}
+                  disabled={!iosAvail || submitting}
                   className={`flex items-center gap-2 px-4 py-2.5 text-sm font-medium border-b-2 transition-colors -mb-px ${
                     !iosAvail
                       ? "text-gray-300 border-transparent cursor-not-allowed"
@@ -344,6 +570,7 @@ export default function PlatformManagement({
                     <button
                       type="button"
                       onClick={() => { setAddIosAuthType("p8"); setAddFile(null); }}
+                      disabled={submitting}
                       className={`p-3 rounded-lg border-2 text-left transition ${
                         addIosAuthType === "p8"
                           ? "border-[#2563EB] bg-[#2563EB]/5"
@@ -368,6 +595,7 @@ export default function PlatformManagement({
                     <button
                       type="button"
                       onClick={() => { setAddIosAuthType("p12"); setAddFile(null); }}
+                      disabled={submitting}
                       className={`p-3 rounded-lg border-2 text-left transition ${
                         addIosAuthType === "p12"
                           ? "border-[#2563EB] bg-[#2563EB]/5"
@@ -432,6 +660,7 @@ export default function PlatformManagement({
                     </div>
                     <button
                       onClick={() => setAddFile(null)}
+                      disabled={submitting}
                       className="text-gray-400 hover:text-red-500 transition-colors flex-shrink-0"
                     >
                       <span className="material-symbols-outlined text-lg">close</span>
@@ -440,6 +669,23 @@ export default function PlatformManagement({
                 )}
               </div>
 
+              {/* iOS Bundle ID */}
+              {!isAndroidTab && (
+                <div className="mb-5">
+                  <label className="block text-sm font-medium text-[#0f172a] mb-1.5">
+                    Bundle ID
+                  </label>
+                  <input
+                    type="text"
+                    value={addBundleId}
+                    onChange={(e) => setAddBundleId(e.target.value)}
+                    placeholder="예: com.example.app"
+                    disabled={submitting}
+                    className="w-full px-3 py-2.5 border border-gray-300 rounded text-sm font-mono focus:outline-none focus:ring-2 focus:ring-[#2563EB]/20 focus:border-[#2563EB] transition placeholder-gray-400"
+                  />
+                </div>
+              )}
+
               {/* iOS P8: Key ID + Team ID */}
               {!isAndroidTab && addIosAuthType === "p8" && (
                 <div className="mb-5">
@@ -450,7 +696,10 @@ export default function PlatformManagement({
                       </label>
                       <input
                         type="text"
+                        value={addKeyId}
+                        onChange={(e) => setAddKeyId(e.target.value)}
                         placeholder="예: ABC123DEFG"
+                        disabled={submitting}
                         className="w-full px-3 py-2.5 border border-gray-300 rounded text-sm font-mono focus:outline-none focus:ring-2 focus:ring-[#2563EB]/20 focus:border-[#2563EB] transition placeholder-gray-400"
                       />
                     </div>
@@ -460,7 +709,10 @@ export default function PlatformManagement({
                       </label>
                       <input
                         type="text"
+                        value={addTeamId}
+                        onChange={(e) => setAddTeamId(e.target.value)}
                         placeholder="예: 9ABCDEFGH1"
+                        disabled={submitting}
                         className="w-full px-3 py-2.5 border border-gray-300 rounded text-sm font-mono focus:outline-none focus:ring-2 focus:ring-[#2563EB]/20 focus:border-[#2563EB] transition placeholder-gray-400"
                       />
                     </div>
@@ -486,7 +738,10 @@ export default function PlatformManagement({
                   <div className="relative">
                     <input
                       type={addShowPassword ? "text" : "password"}
+                      value={addCertPassword}
+                      onChange={(e) => setAddCertPassword(e.target.value)}
                       placeholder="P12 인증서 비밀번호를 입력하세요"
+                      disabled={submitting}
                       className="w-full px-3 py-2.5 pr-10 border border-gray-300 rounded text-sm focus:outline-none focus:ring-2 focus:ring-[#2563EB]/20 focus:border-[#2563EB] transition placeholder-gray-400"
                     />
                     <button
@@ -506,26 +761,27 @@ export default function PlatformManagement({
               <div className="flex justify-end gap-3 pt-4 border-t border-gray-100">
                 <button
                   onClick={() => setShowAddModal(false)}
+                  disabled={submitting}
                   className="bg-white border border-gray-300 hover:bg-gray-50 text-[#0f172a] px-5 py-2.5 rounded text-sm font-medium transition"
                 >
                   취소
                 </button>
                 <button
-                  onClick={() => {
-                    setAddedPlatforms((prev) => new Set(prev).add(addTab));
-                    setDeletedPlatforms((prev) => {
-                      const next = new Set(prev);
-                      next.delete(addTab);
-                      return next;
-                    });
-                    const name = isAndroidTab ? "Android" : "iOS";
-                    toast.success(`${name} 플랫폼이 추가되었습니다.`);
-                    setShowAddModal(false);
-                  }}
-                  className="bg-[#2563EB] hover:bg-[#1d4ed8] text-white px-5 py-2.5 rounded text-sm font-medium transition shadow-sm flex items-center gap-2"
+                  onClick={handleAdd}
+                  disabled={submitting}
+                  className="bg-[#2563EB] hover:bg-[#1d4ed8] text-white px-5 py-2.5 rounded text-sm font-medium transition shadow-sm flex items-center gap-2 disabled:opacity-50"
                 >
-                  <span className="material-symbols-outlined text-base">check</span>
-                  <span>추가</span>
+                  {submitting ? (
+                    <>
+                      <span className="material-symbols-outlined text-base animate-spin">progress_activity</span>
+                      <span>처리 중...</span>
+                    </>
+                  ) : (
+                    <>
+                      <span className="material-symbols-outlined text-base">check</span>
+                      <span>추가</span>
+                    </>
+                  )}
                 </button>
               </div>
             </div>
@@ -538,7 +794,7 @@ export default function PlatformManagement({
         <div className="fixed inset-0 z-50 flex items-center justify-center">
           <div
             className="absolute inset-0 bg-black/40"
-            onClick={() => setDeleteTarget(null)}
+            onClick={() => !submitting && setDeleteTarget(null)}
           />
           <div className="relative bg-white rounded-xl shadow-2xl max-w-md w-full mx-4 p-6 border border-gray-200">
             <div className="flex items-center gap-3 mb-4">
@@ -568,28 +824,29 @@ export default function PlatformManagement({
             <div className="flex justify-end gap-3">
               <button
                 onClick={() => setDeleteTarget(null)}
+                disabled={submitting}
                 className="bg-white border border-gray-300 hover:bg-gray-50 text-[#0f172a] px-5 py-2.5 rounded text-sm font-medium transition"
               >
                 취소
               </button>
               <button
-                onClick={() => {
-                  const key = deleteTarget === "Android" ? "android" : "ios";
-                  setDeletedPlatforms((prev) => new Set(prev).add(key));
-                  setAddedPlatforms((prev) => {
-                    const next = new Set(prev);
-                    next.delete(key);
-                    return next;
-                  });
-                  toast.success(`${deleteTarget} 플랫폼이 삭제되었습니다.`);
-                  setDeleteTarget(null);
-                }}
-                className="bg-red-600 hover:bg-red-700 text-white px-5 py-2.5 rounded text-sm font-medium transition shadow-sm flex items-center gap-2"
+                onClick={handleDelete}
+                disabled={submitting}
+                className="bg-red-600 hover:bg-red-700 text-white px-5 py-2.5 rounded text-sm font-medium transition shadow-sm flex items-center gap-2 disabled:opacity-50"
               >
-                <span className="material-symbols-outlined text-base">
-                  delete
-                </span>
-                <span>삭제</span>
+                {submitting ? (
+                  <>
+                    <span className="material-symbols-outlined text-base animate-spin">progress_activity</span>
+                    <span>삭제 중...</span>
+                  </>
+                ) : (
+                  <>
+                    <span className="material-symbols-outlined text-base">
+                      delete
+                    </span>
+                    <span>삭제</span>
+                  </>
+                )}
               </button>
             </div>
           </div>
@@ -599,27 +856,27 @@ export default function PlatformManagement({
       {/* 인증서 수정 모달 */}
       {editTarget && (() => {
         const cred = editTarget === "android"
-          ? service.platforms.android
-          : service.platforms.ios;
+          ? service.platforms?.android
+          : service.platforms?.ios;
         const isAndroid = editTarget === "android";
         const statusLabel =
-          cred.credentialStatus === "error" ? "미인증 상태"
-          : cred.credentialStatus === "warn" ? "조치 필요"
+          cred?.credentialStatus === "error" ? "미인증 상태"
+          : cred?.credentialStatus === "warn" ? "조치 필요"
           : "인증됨";
         const statusDesc =
-          cred.credentialStatus === "error"
+          cred?.credentialStatus === "error"
             ? "인증서가 등록되지 않았습니다. 인증서를 업로드해주세요."
-            : cred.statusReason ?? "";
+            : cred?.statusReason ?? "";
         const statusColor =
-          cred.credentialStatus === "error" ? "red"
-          : cred.credentialStatus === "warn" ? "amber"
+          cred?.credentialStatus === "error" ? "red"
+          : cred?.credentialStatus === "warn" ? "amber"
           : "green";
 
         return (
           <div className="fixed inset-0 z-50 flex items-center justify-center">
             <div
               className="absolute inset-0 bg-black/40"
-              onClick={() => setEditTarget(null)}
+              onClick={() => !submitting && setEditTarget(null)}
             />
             <div className="relative bg-white rounded-xl shadow-2xl max-w-lg w-full mx-4 p-6 border border-gray-200">
               {/* 헤더 */}
@@ -648,7 +905,7 @@ export default function PlatformManagement({
                   </div>
                 </div>
                 <button
-                  onClick={() => setEditTarget(null)}
+                  onClick={() => !submitting && setEditTarget(null)}
                   className="text-gray-400 hover:text-gray-600 transition-colors p-1 rounded hover:bg-gray-100"
                 >
                   <span className="material-symbols-outlined text-xl">close</span>
@@ -669,7 +926,7 @@ export default function PlatformManagement({
                       color: statusColor === "red" ? "#dc2626" : statusColor === "amber" ? "#d97706" : "#16a34a",
                     }}
                   >
-                    {cred.credentialStatus === "error" ? "error" : cred.credentialStatus === "warn" ? "warning" : "check_circle"}
+                    {cred?.credentialStatus === "error" ? "error" : cred?.credentialStatus === "warn" ? "warning" : "check_circle"}
                   </span>
                   <span className="text-xs font-medium" style={{
                     color: statusColor === "red" ? "#b91c1c" : statusColor === "amber" ? "#b45309" : "#15803d",
@@ -696,6 +953,7 @@ export default function PlatformManagement({
                     <button
                       type="button"
                       onClick={() => setIosAuthType("p8")}
+                      disabled={submitting}
                       className={`p-3 rounded-lg border-2 text-left transition ${
                         iosAuthType === "p8"
                           ? "border-[#2563EB] bg-[#2563EB]/5"
@@ -720,6 +978,7 @@ export default function PlatformManagement({
                     <button
                       type="button"
                       onClick={() => setIosAuthType("p12")}
+                      disabled={submitting}
                       className={`p-3 rounded-lg border-2 text-left transition ${
                         iosAuthType === "p12"
                           ? "border-[#2563EB] bg-[#2563EB]/5"
@@ -790,6 +1049,7 @@ export default function PlatformManagement({
                     </div>
                     <button
                       onClick={() => setSelectedFile(null)}
+                      disabled={submitting}
                       className="text-gray-400 hover:text-red-500 transition-colors flex-shrink-0"
                     >
                       <span className="material-symbols-outlined text-lg">close</span>
@@ -798,6 +1058,23 @@ export default function PlatformManagement({
                 )}
               </div>
 
+              {/* iOS Bundle ID */}
+              {!isAndroid && (
+                <div className="mb-5">
+                  <label className="block text-sm font-medium text-[#0f172a] mb-1.5">
+                    Bundle ID
+                  </label>
+                  <input
+                    type="text"
+                    value={editBundleId}
+                    onChange={(e) => setEditBundleId(e.target.value)}
+                    placeholder="예: com.example.app"
+                    disabled={submitting}
+                    className="w-full px-3 py-2.5 border border-gray-300 rounded text-sm font-mono focus:outline-none focus:ring-2 focus:ring-[#2563EB]/20 focus:border-[#2563EB] transition placeholder-gray-400"
+                  />
+                </div>
+              )}
+
               {/* iOS P8: Key ID + Team ID */}
               {!isAndroid && iosAuthType === "p8" && (
                 <div className="mb-5">
@@ -808,7 +1085,10 @@ export default function PlatformManagement({
                       </label>
                       <input
                         type="text"
+                        value={editKeyId}
+                        onChange={(e) => setEditKeyId(e.target.value)}
                         placeholder="예: ABC123DEFG"
+                        disabled={submitting}
                         className="w-full px-3 py-2.5 border border-gray-300 rounded text-sm font-mono focus:outline-none focus:ring-2 focus:ring-[#2563EB]/20 focus:border-[#2563EB] transition placeholder-gray-400"
                       />
                     </div>
@@ -818,7 +1098,10 @@ export default function PlatformManagement({
                       </label>
                       <input
                         type="text"
+                        value={editTeamId}
+                        onChange={(e) => setEditTeamId(e.target.value)}
                         placeholder="예: 9ABCDEFGH1"
+                        disabled={submitting}
                         className="w-full px-3 py-2.5 border border-gray-300 rounded text-sm font-mono focus:outline-none focus:ring-2 focus:ring-[#2563EB]/20 focus:border-[#2563EB] transition placeholder-gray-400"
                       />
                     </div>
@@ -844,7 +1127,10 @@ export default function PlatformManagement({
                   <div className="relative">
                     <input
                       type={showPassword ? "text" : "password"}
+                      value={editCertPassword}
+                      onChange={(e) => setEditCertPassword(e.target.value)}
                       placeholder="P12 인증서 비밀번호를 입력하세요"
+                      disabled={submitting}
                       className="w-full px-3 py-2.5 pr-10 border border-gray-300 rounded text-sm focus:outline-none focus:ring-2 focus:ring-[#2563EB]/20 focus:border-[#2563EB] transition placeholder-gray-400"
                     />
                     <button
@@ -864,19 +1150,27 @@ export default function PlatformManagement({
               <div className="flex justify-end gap-3">
                 <button
                   onClick={() => setEditTarget(null)}
+                  disabled={submitting}
                   className="bg-white border border-gray-300 hover:bg-gray-50 text-[#0f172a] px-5 py-2.5 rounded text-sm font-medium transition"
                 >
                   취소
                 </button>
                 <button
-                  onClick={() => {
-                    toast.success("인증서가 저장되었습니다.");
-                    setEditTarget(null);
-                  }}
-                  className="bg-[#2563EB] hover:bg-[#1d4ed8] text-white px-5 py-2.5 rounded text-sm font-medium transition shadow-sm flex items-center gap-2"
+                  onClick={handleEdit}
+                  disabled={submitting}
+                  className="bg-[#2563EB] hover:bg-[#1d4ed8] text-white px-5 py-2.5 rounded text-sm font-medium transition shadow-sm flex items-center gap-2 disabled:opacity-50"
                 >
-                  <span className="material-symbols-outlined text-base">save</span>
-                  <span>저장</span>
+                  {submitting ? (
+                    <>
+                      <span className="material-symbols-outlined text-base animate-spin">progress_activity</span>
+                      <span>저장 중...</span>
+                    </>
+                  ) : (
+                    <>
+                      <span className="material-symbols-outlined text-base">save</span>
+                      <span>저장</span>
+                    </>
+                  )}
                 </button>
               </div>
             </div>
diff --git a/react/src/features/service/components/PlatformStatusIndicator.tsx b/react/src/features/service/components/PlatformStatusIndicator.tsx
index db296a4..2b78daa 100644
--- a/react/src/features/service/components/PlatformStatusIndicator.tsx
+++ b/react/src/features/service/components/PlatformStatusIndicator.tsx
@@ -46,7 +46,7 @@ export default function PlatformStatusIndicator({
   platform,
   credential,
 }: PlatformStatusIndicatorProps) {
-  if (!credential.registered) return null;
+  if (!credential?.registered) return null;
 
   const hasIssue =
     credential.credentialStatus === "warn" ||
diff --git a/react/src/features/service/components/ServiceHeaderCard.tsx b/react/src/features/service/components/ServiceHeaderCard.tsx
index 6786798..87f9351 100644
--- a/react/src/features/service/components/ServiceHeaderCard.tsx
+++ b/react/src/features/service/components/ServiceHeaderCard.tsx
@@ -22,7 +22,7 @@ export default function ServiceHeaderCard({
         <div className="flex items-center gap-4">
           <div className="size-14 rounded-xl bg-[#2563EB]/10 flex items-center justify-center">
             <span className="material-symbols-outlined text-[#2563EB] text-3xl">
-              {service.serviceIcon}
+              {service.serviceIcon || "hub"}
             </span>
           </div>
           <div className="flex flex-col">
@@ -78,18 +78,24 @@ export default function ServiceHeaderCard({
             플랫폼
           </p>
           <div className="flex items-center gap-2.5 mt-1.5">
-            <PlatformStatusIndicator
-              platform="android"
-              credential={service.platforms.android}
-            />
-            <PlatformStatusIndicator
-              platform="ios"
-              credential={service.platforms.ios}
-            />
-            {!service.platforms.android.registered &&
-              !service.platforms.ios.registered && (
-                <span className="text-xs text-gray-400">없음</span>
-              )}
+            {service.platforms ? (
+              <>
+                <PlatformStatusIndicator
+                  platform="android"
+                  credential={service.platforms.android}
+                />
+                <PlatformStatusIndicator
+                  platform="ios"
+                  credential={service.platforms.ios}
+                />
+                {!service.platforms?.android?.registered &&
+                  !service.platforms?.ios?.registered && (
+                    <span className="text-xs text-gray-400">없음</span>
+                  )}
+              </>
+            ) : (
+              <span className="text-xs text-gray-400">없음</span>
+            )}
           </div>
         </div>
         <div className="flex flex-col">
@@ -105,7 +111,7 @@ export default function ServiceHeaderCard({
             생성일
           </p>
           <p className="text-sm font-semibold text-[#0f172a] mt-1.5">
-            {service.createdAt}
+            {service.createdAt?.slice(0, 10)}
           </p>
         </div>
         <div className="flex flex-col">
@@ -113,7 +119,7 @@ export default function ServiceHeaderCard({
             마지막 업데이트
           </p>
           <p className="text-sm font-semibold text-[#0f172a] mt-1.5">
-            {service.updatedAt ?? "-"}
+            {service.updatedAt?.slice(0, 10) ?? "-"}
           </p>
         </div>
       </div>
diff --git a/react/src/features/service/components/ServiceStatsCards.tsx b/react/src/features/service/components/ServiceStatsCards.tsx
index b59a5a2..1e392dc 100644
--- a/react/src/features/service/components/ServiceStatsCards.tsx
+++ b/react/src/features/service/components/ServiceStatsCards.tsx
@@ -1,7 +1,7 @@
 interface StatCard {
   label: string;
   value: string;
-  sub: { type: "trend" | "stable" | "live"; text: string; color?: string };
+  sub: { type: "trend" | "stable"; text: string; color?: string };
   icon: string;
   iconBg: string;
   iconColor: string;
@@ -12,6 +12,10 @@ interface ServiceStatsCardsProps {
   successRate: number;
   deviceCount: number;
   todaySent: number;
+  sentChangeRate?: number;
+  successRateChange?: number;
+  deviceCountChange?: number;
+  todaySentChangeRate?: number;
 }
 
 export default function ServiceStatsCards({
@@ -19,12 +23,22 @@ export default function ServiceStatsCards({
   successRate,
   deviceCount,
   todaySent,
+  sentChangeRate = 0,
+  successRateChange = 0,
+  deviceCountChange = 0,
+  todaySentChangeRate = 0,
 }: ServiceStatsCardsProps) {
+  const noChange: StatCard["sub"] = { type: "stable", text: "변동 없음" };
+
   const cards: StatCard[] = [
     {
       label: "총 발송 수",
       value: totalSent.toLocaleString(),
-      sub: { type: "trend", text: "+12.5%", color: "text-indigo-600" },
+      sub: sentChangeRate === 0
+        ? noChange
+        : sentChangeRate > 0
+          ? { type: "trend", text: `+${sentChangeRate.toLocaleString()}`, color: "text-indigo-600" }
+          : { type: "trend", text: `${sentChangeRate.toLocaleString()}`, color: "text-red-500" },
       icon: "equalizer",
       iconBg: "bg-indigo-50",
       iconColor: "text-indigo-600",
@@ -32,7 +46,11 @@ export default function ServiceStatsCards({
     {
       label: "성공률",
       value: `${successRate}%`,
-      sub: { type: "stable", text: "Stable" },
+      sub: successRateChange === 0
+        ? noChange
+        : successRateChange > 0
+          ? { type: "trend", text: `+${successRateChange.toFixed(1)}%`, color: "text-emerald-600" }
+          : { type: "trend", text: `${successRateChange.toFixed(1)}%`, color: "text-red-500" },
       icon: "check_circle",
       iconBg: "bg-emerald-50",
       iconColor: "text-emerald-600",
@@ -40,7 +58,11 @@ export default function ServiceStatsCards({
     {
       label: "등록 기기 수",
       value: deviceCount.toLocaleString(),
-      sub: { type: "trend", text: "+82 today", color: "text-amber-600" },
+      sub: deviceCountChange === 0
+        ? noChange
+        : deviceCountChange > 0
+          ? { type: "trend", text: `+${deviceCountChange.toLocaleString()} today`, color: "text-amber-600" }
+          : { type: "trend", text: `${deviceCountChange.toLocaleString()} today`, color: "text-red-500" },
       icon: "devices",
       iconBg: "bg-amber-50",
       iconColor: "text-amber-600",
@@ -48,7 +70,11 @@ export default function ServiceStatsCards({
     {
       label: "오늘 발송",
       value: todaySent.toLocaleString(),
-      sub: { type: "live", text: "Live" },
+      sub: todaySentChangeRate === 0
+        ? noChange
+        : todaySentChangeRate > 0
+          ? { type: "trend", text: `+${todaySentChangeRate.toLocaleString()}`, color: "text-[#2563EB]" }
+          : { type: "trend", text: `${todaySentChangeRate.toLocaleString()}`, color: "text-red-500" },
       icon: "today",
       iconBg: "bg-[#2563EB]/5",
       iconColor: "text-[#2563EB]",
@@ -77,7 +103,7 @@ export default function ServiceStatsCards({
                       className="material-symbols-outlined"
                       style={{ fontSize: "14px" }}
                     >
-                      trending_up
+                      {card.sub.text.startsWith("-") ? "trending_down" : "trending_up"}
                     </span>
                     <span>{card.sub.text}</span>
                   </p>
@@ -88,12 +114,6 @@ export default function ServiceStatsCards({
                     <span>{card.sub.text}</span>
                   </p>
                 )}
-                {card.sub.type === "live" && (
-                  <p className="text-xs text-[#2563EB] font-medium flex items-center gap-1">
-                    <span className="w-2 h-2 rounded-full bg-[#2563EB] animate-pulse" />
-                    <span>{card.sub.text}</span>
-                  </p>
-                )}
               </div>
             </div>
             <div
diff --git a/react/src/features/service/pages/ServiceDetailPage.tsx b/react/src/features/service/pages/ServiceDetailPage.tsx
index 474074c..de08c87 100644
--- a/react/src/features/service/pages/ServiceDetailPage.tsx
+++ b/react/src/features/service/pages/ServiceDetailPage.tsx
@@ -1,21 +1,161 @@
-import { useState } from "react";
+import { useState, useEffect, useCallback } from "react";
 import { useParams } from "react-router-dom";
 import PageHeader from "@/components/common/PageHeader";
 import CopyButton from "@/components/common/CopyButton";
 import ServiceHeaderCard from "../components/ServiceHeaderCard";
 import ServiceStatsCards from "../components/ServiceStatsCards";
 import PlatformManagement from "../components/PlatformManagement";
-import { MOCK_SERVICE_DETAIL, MOCK_SERVICES } from "../types";
+import { fetchServiceDetail, fetchApiKey } from "@/api/service.api";
+import { fetchDashboard } from "@/api/dashboard.api";
+import type { ServiceDetail } from "../types";
+import type { DashboardKpi } from "@/features/dashboard/types";
 
 export default function ServiceDetailPage() {
   const { id } = useParams<{ id: string }>();
-  const [showApiKey, setShowApiKey] = useState(false);
 
-  // 목 데이터에서 서비스 조회 (목록에서 클릭한 ID로)
-  const listItem = MOCK_SERVICES.find((s) => s.serviceCode === id);
-  const service = listItem
-    ? { ...MOCK_SERVICE_DETAIL, ...listItem, serviceCode: listItem.serviceCode }
-    : MOCK_SERVICE_DETAIL;
+  // 데이터 상태
+  const [service, setService] = useState<ServiceDetail | null>(null);
+  const [loading, setLoading] = useState(true);
+  const [error, setError] = useState(false);
+
+  // 통계 상태
+  const [stats, setStats] = useState<DashboardKpi | null>(null);
+
+  // API 키 모달 상태
+  const [showApiKey, setShowApiKey] = useState(false);
+  const [fullApiKey, setFullApiKey] = useState<string | null>(null);
+  const [apiKeyLoading, setApiKeyLoading] = useState(false);
+
+  // 서비스 상세 + 통계 로드
+  const loadData = useCallback(async (serviceCode: string) => {
+    setLoading(true);
+    setError(false);
+
+    // 오늘 날짜 기준 통계 요청
+    const today = new Date().toISOString().slice(0, 10);
+
+    try {
+      const [serviceRes, dashboardRes] = await Promise.allSettled([
+        fetchServiceDetail(serviceCode),
+        fetchDashboard({ start_date: today, end_date: today }, serviceCode),
+      ]);
+
+      if (serviceRes.status === "fulfilled") {
+        setService(serviceRes.value.data.data);
+      } else {
+        setError(true);
+        return;
+      }
+
+      if (dashboardRes.status === "fulfilled") {
+        setStats(dashboardRes.value.data.data.kpi);
+      }
+      // 통계 실패 시 null 유지 → 0으로 폴백
+    } catch {
+      setError(true);
+    } finally {
+      setLoading(false);
+    }
+  }, []);
+
+  useEffect(() => {
+    if (!id) return;
+    loadData(id);
+  }, [id, loadData]);
+
+  // 플랫폼 변경 후 서비스 데이터 갱신 (로딩 스켈레톤 없이 조용히)
+  const handleRefresh = useCallback(async () => {
+    if (!id) return;
+    const today = new Date().toISOString().slice(0, 10);
+    try {
+      const [serviceRes, dashboardRes] = await Promise.allSettled([
+        fetchServiceDetail(id),
+        fetchDashboard({ start_date: today, end_date: today }, id),
+      ]);
+      if (serviceRes.status === "fulfilled") {
+        setService(serviceRes.value.data.data);
+      }
+      if (dashboardRes.status === "fulfilled") {
+        setStats(dashboardRes.value.data.data.kpi);
+      }
+    } catch {
+      // 리프레시 실패는 무시 (기존 데이터 유지)
+    }
+  }, [id]);
+
+  // API 키 조회
+  const handleShowApiKey = async () => {
+    if (!id) return;
+    setApiKeyLoading(true);
+    try {
+      const res = await fetchApiKey(id);
+      setFullApiKey(res.data.data.apiKey);
+      setShowApiKey(true);
+    } catch {
+      // 실패 시 마스킹된 키라도 보여줌
+      setFullApiKey(service?.apiKey ?? null);
+      setShowApiKey(true);
+    } finally {
+      setApiKeyLoading(false);
+    }
+  };
+
+  const handleCloseApiKey = () => {
+    setShowApiKey(false);
+    setFullApiKey(null);
+  };
+
+  // 로딩 스켈레톤
+  if (loading) {
+    return (
+      <div>
+        <PageHeader title="서비스 상세 정보" />
+        <div className="bg-white border border-gray-200 rounded-lg shadow-sm p-6 mb-6">
+          <div className="flex items-center gap-4">
+            <div className="size-14 rounded-xl bg-gray-100 animate-pulse" />
+            <div className="flex flex-col gap-2">
+              <div className="h-6 w-48 rounded bg-gray-100 animate-pulse" />
+              <div className="h-4 w-32 rounded bg-gray-100 animate-pulse" />
+            </div>
+          </div>
+          <div className="mt-6 pt-5 border-t border-gray-100 grid grid-cols-4 gap-6">
+            {Array.from({ length: 4 }).map((_, i) => (
+              <div key={i} className="flex flex-col gap-2">
+                <div className="h-3 w-16 rounded bg-gray-100 animate-pulse" />
+                <div className="h-4 w-24 rounded bg-gray-100 animate-pulse" />
+              </div>
+            ))}
+          </div>
+        </div>
+      </div>
+    );
+  }
+
+  // 에러 상태
+  if (error || !service) {
+    return (
+      <div>
+        <PageHeader title="서비스 상세 정보" />
+        <div className="bg-white border border-gray-200 rounded-lg shadow-sm p-12 flex flex-col items-center justify-center gap-3">
+          <span className="material-symbols-outlined text-4xl text-gray-300">
+            cloud_off
+          </span>
+          <p className="text-sm text-gray-500">
+            서비스 정보를 불러오지 못했습니다.
+          </p>
+          <button
+            onClick={() => window.location.reload()}
+            className="text-sm text-[#2563EB] hover:underline font-medium"
+          >
+            다시 시도
+          </button>
+        </div>
+      </div>
+    );
+  }
+
+  // 오늘 발송 = daily_trend의 오늘 데이터 또는 kpi.total_sent (서비스별 조회 시 오늘 기간)
+  const todaySent = stats?.total_sent ?? 0;
 
   return (
     <div>
@@ -23,24 +163,28 @@ export default function ServiceDetailPage() {
 
       <ServiceHeaderCard
         service={service}
-        onShowApiKey={() => setShowApiKey(true)}
+        onShowApiKey={handleShowApiKey}
       />
 
       <ServiceStatsCards
-        totalSent={154200}
-        successRate={99.2}
+        totalSent={stats?.total_sent ?? 0}
+        successRate={stats?.success_rate ?? 0}
         deviceCount={service.deviceCount}
-        todaySent={5300}
+        todaySent={todaySent}
+        sentChangeRate={stats?.sent_change_rate}
+        successRateChange={stats?.success_rate_change}
+        deviceCountChange={stats?.device_count_change}
+        todaySentChangeRate={stats?.today_sent_change_rate}
       />
 
-      <PlatformManagement service={service} />
+      <PlatformManagement service={service} onRefresh={handleRefresh} />
 
       {/* API 키 확인 모달 */}
       {showApiKey && (
         <div className="fixed inset-0 z-50 flex items-center justify-center">
           <div
             className="absolute inset-0 bg-black/40"
-            onClick={() => setShowApiKey(false)}
+            onClick={handleCloseApiKey}
           />
           <div className="relative bg-white rounded-xl shadow-2xl max-w-lg w-full mx-4 p-6 border border-gray-200">
             <div className="flex items-center justify-between mb-4">
@@ -53,7 +197,7 @@ export default function ServiceDetailPage() {
                 <h3 className="text-lg font-bold text-[#0f172a]">API 키</h3>
               </div>
               <button
-                onClick={() => setShowApiKey(false)}
+                onClick={handleCloseApiKey}
                 className="text-gray-400 hover:text-gray-600 transition-colors p-1 rounded hover:bg-gray-100"
               >
                 <span className="material-symbols-outlined text-xl">
@@ -75,10 +219,16 @@ export default function ServiceDetailPage() {
               </div>
             </div>
             <div className="bg-gray-50 border border-gray-200 rounded-lg p-4 flex items-center gap-3">
-              <code className="flex-1 text-sm font-mono text-[#0f172a] break-all select-all">
-                {service.apiKey}
-              </code>
-              <CopyButton text={service.apiKey} />
+              {apiKeyLoading ? (
+                <div className="flex-1 h-5 rounded bg-gray-200 animate-pulse" />
+              ) : (
+                <>
+                  <code className="flex-1 text-sm font-mono text-[#0f172a] break-all select-all">
+                    {fullApiKey ?? service.apiKey}
+                  </code>
+                  <CopyButton text={fullApiKey ?? service.apiKey} />
+                </>
+              )}
             </div>
           </div>
         </div>
diff --git a/react/src/features/service/pages/ServiceEditPage.tsx b/react/src/features/service/pages/ServiceEditPage.tsx
index 8aa41cf..21ae113 100644
--- a/react/src/features/service/pages/ServiceEditPage.tsx
+++ b/react/src/features/service/pages/ServiceEditPage.tsx
@@ -1,11 +1,15 @@
-import { useState } from "react";
+import { useState, useEffect } from "react";
 import { useNavigate, useParams } from "react-router-dom";
 import { toast } from "sonner";
+import { AxiosError } from "axios";
 import PageHeader from "@/components/common/PageHeader";
 import PlatformStatusIndicator from "../components/PlatformStatusIndicator";
 import useShake from "@/hooks/useShake";
 import { formatNumber } from "@/utils/format";
-import { MOCK_SERVICE_DETAIL, MOCK_SERVICES, SERVICE_STATUS } from "../types";
+import { fetchServiceDetail, updateService } from "@/api/service.api";
+import type { ApiError } from "@/types/api";
+import type { ServiceDetail } from "../types";
+import { SERVICE_STATUS } from "../types";
 
 // Apple 로고 SVG
 const AppleLogo = ({ className }: { className?: string }) => (
@@ -18,43 +22,162 @@ export default function ServiceEditPage() {
   const { id } = useParams<{ id: string }>();
   const navigate = useNavigate();
 
-  // 목 데이터에서 서비스 조회
-  const listItem = MOCK_SERVICES.find((s) => s.serviceCode === id);
-  const service = listItem
-    ? { ...MOCK_SERVICE_DETAIL, ...listItem }
-    : MOCK_SERVICE_DETAIL;
+  // 데이터 상태
+  const [service, setService] = useState<ServiceDetail | null>(null);
+  const [loading, setLoading] = useState(true);
+  const [error, setError] = useState(false);
 
-  // 폼 상태
-  const [serviceName, setServiceName] = useState(service.serviceName);
-  const [isActive, setIsActive] = useState(
-    service.status === SERVICE_STATUS.ACTIVE
-  );
-  const [description, setDescription] = useState(service.description ?? "");
+  // 폼 상태 (service 로드 후 초기화)
+  const [serviceName, setServiceName] = useState("");
+  const [isActive, setIsActive] = useState(true);
+  const [description, setDescription] = useState("");
 
   // 에러 상태
   const [nameError, setNameError] = useState(false);
+  const [nameErrorMsg, setNameErrorMsg] = useState("필수 입력 항목입니다.");
   const { triggerShake, cls } = useShake();
 
+  // 제출 상태
+  const [submitting, setSubmitting] = useState(false);
+
   // 모달 상태
   const [showSaveModal, setShowSaveModal] = useState(false);
   const [showCancelModal, setShowCancelModal] = useState(false);
 
+  // 서비스 상세 로드
+  useEffect(() => {
+    if (!id) return;
+    let cancelled = false;
+
+    async function load() {
+      setLoading(true);
+      setError(false);
+      try {
+        const res = await fetchServiceDetail(id!);
+        if (!cancelled) {
+          setService(res.data.data);
+        }
+      } catch {
+        if (!cancelled) {
+          setError(true);
+        }
+      } finally {
+        if (!cancelled) {
+          setLoading(false);
+        }
+      }
+    }
+
+    load();
+    return () => {
+      cancelled = true;
+    };
+  }, [id]);
+
+  // service 로드 후 폼 초기화
+  useEffect(() => {
+    if (service) {
+      setServiceName(service.serviceName);
+      setIsActive(service.status === SERVICE_STATUS.ACTIVE);
+      setDescription(service.description ?? "");
+    }
+  }, [service]);
+
   // 저장
   const handleSave = () => {
-    if (!serviceName.trim()) {
+    const trimmed = serviceName.trim();
+    if (!trimmed || trimmed.length < 2) {
       setNameError(true);
+      setNameErrorMsg(
+        !trimmed ? "필수 입력 항목입니다." : "서비스 명은 2자 이상이어야 합니다.",
+      );
       triggerShake(["name"]);
       return;
     }
     setShowSaveModal(true);
   };
 
-  const handleSaveConfirm = () => {
+  const handleSaveConfirm = async () => {
     setShowSaveModal(false);
-    toast.success("변경사항이 저장되었습니다.");
-    navigate(`/services/${id}`);
+    setSubmitting(true);
+
+    try {
+      await updateService({
+        serviceCode: id!,
+        serviceName: serviceName.trim(),
+        description: description.trim() || null,
+        status: isActive ? 0 : 1,
+      });
+      toast.success("변경사항이 저장되었습니다.");
+      navigate(`/services/${id}`);
+    } catch (err) {
+      const axiosErr = err as AxiosError<ApiError>;
+      const status = axiosErr.response?.status;
+      const msg = axiosErr.response?.data?.msg;
+
+      if (status === 409) {
+        toast.error(msg ?? "이미 사용 중인 서비스 명입니다.");
+        setNameError(true);
+        setNameErrorMsg(msg ?? "이미 사용 중인 서비스 명입니다.");
+        triggerShake(["name"]);
+      } else if (status === 400) {
+        toast.error(msg ?? "변경된 내용이 없습니다.");
+      } else {
+        toast.error(msg ?? "저장에 실패했습니다. 다시 시도해주세요.");
+      }
+    } finally {
+      setSubmitting(false);
+    }
   };
 
+  // 로딩 스켈레톤
+  if (loading) {
+    return (
+      <div>
+        <PageHeader title="서비스 수정" />
+        <div className="border border-gray-200 rounded-lg bg-white shadow-sm p-8">
+          <div className="space-y-6">
+            <div>
+              <div className="h-4 w-20 bg-gray-200 rounded animate-pulse mb-2" />
+              <div className="h-10 bg-gray-100 rounded animate-pulse" />
+            </div>
+            <div>
+              <div className="h-4 w-16 bg-gray-200 rounded animate-pulse mb-2" />
+              <div className="h-10 bg-gray-100 rounded animate-pulse" />
+            </div>
+            <div>
+              <div className="h-4 w-12 bg-gray-200 rounded animate-pulse mb-2" />
+              <div className="h-24 bg-gray-100 rounded animate-pulse" />
+            </div>
+          </div>
+        </div>
+      </div>
+    );
+  }
+
+  // 에러 상태
+  if (error || !service) {
+    return (
+      <div>
+        <PageHeader title="서비스 수정" />
+        <div className="border border-gray-200 rounded-lg bg-white shadow-sm p-12 text-center">
+          <span className="material-symbols-outlined text-gray-300 text-5xl mb-3 block">
+            error_outline
+          </span>
+          <p className="text-sm text-gray-500 mb-4">
+            서비스 정보를 불러올 수 없습니다.
+          </p>
+          <button
+            onClick={() => navigate("/services")}
+            className="text-sm text-[#2563EB] hover:underline font-medium"
+          >
+            목록으로 돌아가기
+          </button>
+        </div>
+      </div>
+    );
+  }
+
   return (
     <div>
       <PageHeader
@@ -108,7 +231,7 @@ export default function ServiceEditPage() {
                 >
                   error
                 </span>
-                <span>필수 입력 항목입니다.</span>
+                <span>{nameErrorMsg}</span>
               </div>
             )}
           </div>
@@ -160,18 +283,24 @@ export default function ServiceEditPage() {
                   플랫폼
                 </p>
                 <div className="flex items-center gap-1.5 mt-1.5">
-                  <PlatformStatusIndicator
-                    platform="android"
-                    credential={service.platforms.android}
-                  />
-                  <PlatformStatusIndicator
-                    platform="ios"
-                    credential={service.platforms.ios}
-                  />
-                  {!service.platforms.android.registered &&
-                    !service.platforms.ios.registered && (
-                      <span className="text-xs text-gray-400">없음</span>
-                    )}
+                  {service.platforms ? (
+                    <>
+                      <PlatformStatusIndicator
+                        platform="android"
+                        credential={service.platforms.android}
+                      />
+                      <PlatformStatusIndicator
+                        platform="ios"
+                        credential={service.platforms.ios}
+                      />
+                      {!service.platforms?.android?.registered &&
+                        !service.platforms?.ios?.registered && (
+                          <span className="text-xs text-gray-400">없음</span>
+                        )}
+                    </>
+                  ) : (
+                    <span className="text-xs text-gray-400">없음</span>
+                  )}
                 </div>
               </div>
               <div className="flex flex-col">
@@ -187,7 +316,7 @@ export default function ServiceEditPage() {
                   생성일
                 </p>
                 <p className="text-sm font-semibold text-[#0f172a] mt-1.5">
-                  {service.createdAt}
+                  {service.createdAt?.slice(0, 10)}
                 </p>
               </div>
               <div className="flex flex-col">
@@ -195,7 +324,7 @@ export default function ServiceEditPage() {
                   마지막 업데이트
                 </p>
                 <p className="text-sm font-semibold text-[#0f172a] mt-1.5">
-                  {service.updatedAt ?? "-"}
+                  {service.updatedAt?.slice(0, 10) ?? "-"}
                 </p>
               </div>
             </div>
@@ -212,9 +341,10 @@ export default function ServiceEditPage() {
           </button>
           <button
             onClick={handleSave}
-            className="bg-[#2563EB] hover:bg-[#1d4ed8] text-white px-5 py-2.5 rounded text-sm font-medium transition shadow-sm"
+            disabled={submitting}
+            className="bg-[#2563EB] hover:bg-[#1d4ed8] text-white px-5 py-2.5 rounded text-sm font-medium transition shadow-sm disabled:opacity-50 disabled:cursor-not-allowed"
           >
-            저장하기
+            {submitting ? "저장 중..." : "저장하기"}
           </button>
         </div>
       </div>
@@ -235,7 +365,7 @@ export default function ServiceEditPage() {
         </div>
 
         {/* Android */}
-        {service.platforms.android.registered && (
+        {service.platforms?.android?.registered && (
           <div className="px-6 py-5 border-b border-gray-100 flex items-center justify-between">
             <div className="flex items-center gap-4 flex-1">
               <div className="size-12 rounded-lg bg-green-50 flex items-center justify-center flex-shrink-0">
@@ -279,7 +409,7 @@ export default function ServiceEditPage() {
         )}
 
         {/* iOS */}
-        {service.platforms.ios.registered && (
+        {service.platforms?.ios?.registered && (
           <div className="px-6 py-5 flex items-center justify-between">
             <div className="flex items-center gap-4 flex-1">
               <div className="size-12 rounded-lg bg-gray-100 flex items-center justify-center flex-shrink-0">
@@ -321,8 +451,8 @@ export default function ServiceEditPage() {
         )}
 
         {/* 빈 상태 */}
-        {!service.platforms.android.registered &&
-          !service.platforms.ios.registered && (
+        {!service.platforms?.android?.registered &&
+          !service.platforms?.ios?.registered && (
             <div className="px-6 py-12 text-center">
               <span className="material-symbols-outlined text-gray-300 text-5xl mb-3 block">
                 devices
@@ -375,7 +505,8 @@ export default function ServiceEditPage() {
               </button>
               <button
                 onClick={handleSaveConfirm}
-                className="bg-[#2563EB] hover:bg-[#1d4ed8] text-white px-5 py-2.5 rounded text-sm font-medium transition shadow-sm"
+                disabled={submitting}
+                className="bg-[#2563EB] hover:bg-[#1d4ed8] text-white px-5 py-2.5 rounded text-sm font-medium transition shadow-sm disabled:opacity-50 disabled:cursor-not-allowed"
               >
                 저장
               </button>
diff --git a/react/src/features/service/pages/ServiceListPage.tsx b/react/src/features/service/pages/ServiceListPage.tsx
index 5c21db9..cefad65 100644
--- a/react/src/features/service/pages/ServiceListPage.tsx
+++ b/react/src/features/service/pages/ServiceListPage.tsx
@@ -1,4 +1,4 @@
-import { useState, useMemo } from "react";
+import { useState, useEffect, useCallback } from "react";
 import { Link, useNavigate } from "react-router-dom";
 import PageHeader from "@/components/common/PageHeader";
 import SearchInput from "@/components/common/SearchInput";
@@ -10,13 +10,21 @@ import EmptyState from "@/components/common/EmptyState";
 import CopyButton from "@/components/common/CopyButton";
 import PlatformStatusIndicator from "../components/PlatformStatusIndicator";
 import { formatDate, formatNumber } from "@/utils/format";
-import { MOCK_SERVICES, SERVICE_STATUS } from "../types";
+import { fetchServices } from "@/api/service.api";
+import { SERVICE_STATUS } from "../types";
 import type { ServiceSummary } from "../types";
 
 const STATUS_OPTIONS = ["전체 상태", "활성", "비활성"];
 const PAGE_SIZE = 10;
 
-// 상태값 매핑
+// 상태 필터 → API status 값 매핑
+function mapStatusFilter(filter: string): number | undefined {
+  if (filter === "활성") return 0;
+  if (filter === "비활성") return 1;
+  return undefined;
+}
+
+// 상태값 배지
 function getStatusBadge(status: ServiceSummary["status"]) {
   if (status === SERVICE_STATUS.ACTIVE) {
     return <StatusBadge variant="success" label="활성" />;
@@ -31,21 +39,57 @@ export default function ServiceListPage() {
   const [search, setSearch] = useState("");
   const [statusFilter, setStatusFilter] = useState("전체 상태");
   const [currentPage, setCurrentPage] = useState(1);
+
+  // 데이터 상태
+  const [items, setItems] = useState<ServiceSummary[]>([]);
+  const [totalItems, setTotalItems] = useState(0);
+  const [totalPages, setTotalPages] = useState(1);
   const [loading, setLoading] = useState(false);
+  const [error, setError] = useState(false);
 
   // 실제 적용될 필터 (조회 버튼 클릭 시 반영)
   const [appliedSearch, setAppliedSearch] = useState("");
   const [appliedStatus, setAppliedStatus] = useState("전체 상태");
 
-  // 조회 버튼 (로딩 인디케이터 포함)
+  // API 호출
+  const loadData = useCallback(
+    async (page: number, searchKeyword: string, statusFilterValue: string) => {
+      setLoading(true);
+      setError(false);
+      try {
+        const res = await fetchServices({
+          page,
+          pageSize: PAGE_SIZE,
+          searchKeyword: searchKeyword || undefined,
+          status: mapStatusFilter(statusFilterValue),
+        });
+        const data = res.data.data;
+        setItems(data.items ?? []);
+        setTotalItems(data.totalCount ?? 0);
+        setTotalPages(data.totalPages ?? 1);
+      } catch {
+        setError(true);
+        setItems([]);
+        setTotalItems(0);
+        setTotalPages(1);
+      } finally {
+        setLoading(false);
+      }
+    },
+    [],
+  );
+
+  // 초기 로드
+  useEffect(() => {
+    loadData(1, "", "전체 상태");
+  }, [loadData]);
+
+  // 조회 버튼
   const handleQuery = () => {
-    setLoading(true);
-    setTimeout(() => {
-      setAppliedSearch(search);
-      setAppliedStatus(statusFilter);
-      setCurrentPage(1);
-      setLoading(false);
-    }, 400);
+    setAppliedSearch(search);
+    setAppliedStatus(statusFilter);
+    setCurrentPage(1);
+    loadData(1, search, statusFilter);
   };
 
   // 필터 초기화
@@ -55,37 +99,14 @@ export default function ServiceListPage() {
     setAppliedSearch("");
     setAppliedStatus("전체 상태");
     setCurrentPage(1);
+    loadData(1, "", "전체 상태");
   };
 
-  // 필터링된 데이터
-  const filtered = useMemo(() => {
-    return MOCK_SERVICES.filter((svc) => {
-      // 검색
-      if (appliedSearch) {
-        const q = appliedSearch.toLowerCase();
-        if (
-          !svc.serviceName.toLowerCase().includes(q) &&
-          !svc.serviceCode.toLowerCase().includes(q)
-        ) {
-          return false;
-        }
-      }
-      // 상태 필터
-      if (appliedStatus === "활성" && svc.status !== SERVICE_STATUS.ACTIVE)
-        return false;
-      if (appliedStatus === "비활성" && svc.status !== SERVICE_STATUS.SUSPENDED)
-        return false;
-      return true;
-    });
-  }, [appliedSearch, appliedStatus]);
-
-  // 페이지네이션
-  const totalItems = filtered.length;
-  const totalPages = Math.max(1, Math.ceil(totalItems / PAGE_SIZE));
-  const paged = filtered.slice(
-    (currentPage - 1) * PAGE_SIZE,
-    currentPage * PAGE_SIZE
-  );
+  // 페이지 변경
+  const handlePageChange = (page: number) => {
+    setCurrentPage(page);
+    loadData(page, appliedSearch, appliedStatus);
+  };
 
   return (
     <div>
@@ -132,8 +153,23 @@ export default function ServiceListPage() {
         </div>
       </div>
 
-      {/* 테이블 */}
-      {loading ? (
+      {/* 에러 상태 */}
+      {error ? (
+        <div className="bg-white border border-gray-200 rounded-lg shadow-sm p-12 flex flex-col items-center justify-center gap-3">
+          <span className="material-symbols-outlined text-4xl text-gray-300">
+            cloud_off
+          </span>
+          <p className="text-sm text-gray-500">
+            데이터를 불러오지 못했습니다.
+          </p>
+          <button
+            onClick={() => loadData(currentPage, appliedSearch, appliedStatus)}
+            className="text-sm text-[#2563EB] hover:underline font-medium"
+          >
+            다시 시도
+          </button>
+        </div>
+      ) : loading ? (
         /* 로딩 스켈레톤 */
         <div className="bg-white border border-gray-200 rounded-lg overflow-hidden shadow-sm">
           <table className="w-full text-sm">
@@ -194,7 +230,7 @@ export default function ServiceListPage() {
             </tbody>
           </table>
         </div>
-      ) : paged.length > 0 ? (
+      ) : items.length > 0 ? (
         <div className="bg-white border border-gray-200 rounded-lg overflow-hidden shadow-sm">
           <table className="w-full text-sm">
             <thead className="bg-gray-50 border-b border-gray-200">
@@ -220,10 +256,10 @@ export default function ServiceListPage() {
               </tr>
             </thead>
             <tbody>
-              {paged.map((svc, idx) => (
+              {items.map((svc, idx) => (
                 <tr
                   key={svc.serviceCode}
-                  className={`${idx < paged.length - 1 ? "border-b border-gray-100" : ""} hover:bg-gray-50/50 transition-colors cursor-pointer`}
+                  className={`${idx < items.length - 1 ? "border-b border-gray-100" : ""} hover:bg-gray-50/50 transition-colors cursor-pointer`}
                   onClick={() => navigate(`/services/${svc.serviceCode}`)}
                 >
                   {/* 서비스명 */}
@@ -231,7 +267,7 @@ export default function ServiceListPage() {
                     <div className="flex items-center gap-3">
                       <div className="size-8 rounded-lg bg-[#2563EB]/10 flex items-center justify-center flex-shrink-0">
                         <span className="material-symbols-outlined text-[#2563EB] text-base">
-                          {svc.serviceIcon}
+                          {svc.serviceIcon || "hub"}
                         </span>
                       </div>
                       <span className="text-sm font-medium text-[#0f172a]">
@@ -254,14 +290,20 @@ export default function ServiceListPage() {
                   {/* 플랫폼 */}
                   <td className="px-6 py-4 text-center">
                     <div className="flex items-center justify-center gap-1.5">
-                      <PlatformStatusIndicator
-                        platform="android"
-                        credential={svc.platforms.android}
-                      />
-                      <PlatformStatusIndicator
-                        platform="ios"
-                        credential={svc.platforms.ios}
-                      />
+                      {svc.platforms ? (
+                        <>
+                          <PlatformStatusIndicator
+                            platform="android"
+                            credential={svc.platforms.android}
+                          />
+                          <PlatformStatusIndicator
+                            platform="ios"
+                            credential={svc.platforms.ios}
+                          />
+                        </>
+                      ) : (
+                        <span className="text-xs text-gray-400">-</span>
+                      )}
                     </div>
                   </td>
                   {/* 기기 수 */}
@@ -287,7 +329,7 @@ export default function ServiceListPage() {
             totalPages={totalPages}
             totalItems={totalItems}
             pageSize={PAGE_SIZE}
-            onPageChange={setCurrentPage}
+            onPageChange={handlePageChange}
           />
         </div>
       ) : (
diff --git a/react/src/features/service/pages/ServiceRegisterPage.tsx b/react/src/features/service/pages/ServiceRegisterPage.tsx
index 7f1ac84..cec50aa 100644
--- a/react/src/features/service/pages/ServiceRegisterPage.tsx
+++ b/react/src/features/service/pages/ServiceRegisterPage.tsx
@@ -1,9 +1,14 @@
 import { useState } from "react";
 import { useNavigate } from "react-router-dom";
 import { toast } from "sonner";
+import { AxiosError } from "axios";
 import PageHeader from "@/components/common/PageHeader";
+import CopyButton from "@/components/common/CopyButton";
 import PlatformSelector from "../components/PlatformSelector";
 import useShake from "@/hooks/useShake";
+import { createService } from "@/api/service.api";
+import type { ApiError } from "@/types/api";
+import type { CreateServiceResponse } from "../types";
 
 export default function ServiceRegisterPage() {
   const navigate = useNavigate();
@@ -18,15 +23,27 @@ export default function ServiceRegisterPage() {
 
   // 에러 상태
   const [nameError, setNameError] = useState(false);
+  const [nameErrorMsg, setNameErrorMsg] = useState("서비스 명을 입력해주세요.");
   const { triggerShake, cls } = useShake();
 
+  // 제출 상태
+  const [submitting, setSubmitting] = useState(false);
+
   // 모달
   const [showConfirm, setShowConfirm] = useState(false);
 
+  // API Key 모달
+  const [apiKeyResult, setApiKeyResult] = useState<CreateServiceResponse | null>(null);
+  const [showApiKeyModal, setShowApiKeyModal] = useState(false);
+
   // 등록 버튼 클릭
   const handleRegister = () => {
-    if (!serviceName.trim()) {
+    const trimmed = serviceName.trim();
+    if (!trimmed || trimmed.length < 2) {
       setNameError(true);
+      setNameErrorMsg(
+        !trimmed ? "서비스 명을 입력해주세요." : "서비스 명은 2자 이상이어야 합니다.",
+      );
       triggerShake(["name"]);
       return;
     }
@@ -34,10 +51,41 @@ export default function ServiceRegisterPage() {
   };
 
   // 등록 확인
-  const handleConfirm = () => {
+  const handleConfirm = async () => {
     setShowConfirm(false);
-    toast.success("서비스가 등록되었습니다.");
-    navigate("/services");
+    setSubmitting(true);
+
+    try {
+      const res = await createService({
+        serviceName: serviceName.trim(),
+        description: description.trim() || null,
+      });
+      setApiKeyResult(res.data.data);
+      setShowApiKeyModal(true);
+    } catch (err) {
+      const axiosErr = err as AxiosError<ApiError>;
+      const status = axiosErr.response?.status;
+      const msg = axiosErr.response?.data?.msg;
+
+      if (status === 409) {
+        toast.error(msg ?? "이미 사용 중인 서비스 명입니다.");
+        setNameError(true);
+        setNameErrorMsg(msg ?? "이미 사용 중인 서비스 명입니다.");
+        triggerShake(["name"]);
+      } else {
+        toast.error(msg ?? "서비스 등록에 실패했습니다. 다시 시도해주세요.");
+      }
+    } finally {
+      setSubmitting(false);
+    }
+  };
+
+  // API Key 모달 닫기 → 상세 페이지 이동
+  const handleApiKeyModalClose = () => {
+    setShowApiKeyModal(false);
+    if (apiKeyResult) {
+      navigate(`/services/${apiKeyResult.serviceCode}`);
+    }
   };
 
   return (
@@ -77,7 +125,7 @@ export default function ServiceRegisterPage() {
                 >
                   error
                 </span>
-                <span>서비스 명을 입력해주세요.</span>
+                <span>{nameErrorMsg}</span>
               </div>
             )}
           </div>
@@ -140,9 +188,10 @@ export default function ServiceRegisterPage() {
           </button>
           <button
             onClick={handleRegister}
-            className="bg-[#2563EB] hover:bg-[#1d4ed8] text-white px-5 py-2.5 rounded text-sm font-medium transition shadow-sm"
+            disabled={submitting}
+            className="bg-[#2563EB] hover:bg-[#1d4ed8] text-white px-5 py-2.5 rounded text-sm font-medium transition shadow-sm disabled:opacity-50 disabled:cursor-not-allowed"
           >
-            등록하기
+            {submitting ? "등록 중..." : "등록하기"}
           </button>
         </div>
       </div>
@@ -199,6 +248,62 @@ export default function ServiceRegisterPage() {
           </div>
         </div>
       )}
+
+      {/* API Key 결과 모달 */}
+      {showApiKeyModal && apiKeyResult && (
+        <div className="fixed inset-0 z-50 flex items-center justify-center">
+          <div className="absolute inset-0 bg-black/40" />
+          <div className="relative bg-white rounded-xl shadow-2xl max-w-lg w-full mx-4 p-6 border border-gray-200">
+            <div className="flex items-center justify-between mb-4">
+              <div className="flex items-center gap-3">
+                <div className="size-10 rounded-full bg-green-100 flex items-center justify-center flex-shrink-0">
+                  <span className="material-symbols-outlined text-green-600 text-xl">
+                    check_circle
+                  </span>
+                </div>
+                <h3 className="text-lg font-bold text-[#0f172a]">
+                  서비스 등록 완료
+                </h3>
+              </div>
+              <button
+                onClick={handleApiKeyModalClose}
+                className="text-gray-400 hover:text-gray-600 transition-colors p-1 rounded hover:bg-gray-100"
+              >
+                <span className="material-symbols-outlined text-xl">
+                  close
+                </span>
+              </button>
+            </div>
+            <div className="bg-amber-50 border border-amber-200 rounded-lg px-4 py-3 mb-4">
+              <div className="flex items-center gap-1.5 text-amber-700 text-xs font-medium">
+                <span
+                  className="material-symbols-outlined flex-shrink-0"
+                  style={{ fontSize: "14px" }}
+                >
+                  warning
+                </span>
+                <span>
+                  API 키는 외부에 노출되지 않도록 주의해 주세요.
+                </span>
+              </div>
+            </div>
+            <div className="bg-gray-50 border border-gray-200 rounded-lg p-4 flex items-center gap-3 mb-4">
+              <code className="flex-1 text-sm font-mono text-[#0f172a] break-all select-all">
+                {apiKeyResult.apiKey}
+              </code>
+              <CopyButton text={apiKeyResult.apiKey} />
+            </div>
+            <div className="flex justify-end">
+              <button
+                onClick={handleApiKeyModalClose}
+                className="bg-[#2563EB] hover:bg-[#1d4ed8] text-white px-5 py-2.5 rounded text-sm font-medium transition shadow-sm"
+              >
+                확인
+              </button>
+            </div>
+          </div>
+        </div>
+      )}
     </div>
   );
 }
diff --git a/react/src/features/service/types.ts b/react/src/features/service/types.ts
index 5fabce2..1af9996 100644
--- a/react/src/features/service/types.ts
+++ b/react/src/features/service/types.ts
@@ -28,7 +28,7 @@ export interface PlatformCredentialSummary {
 export interface ServiceSummary {
   serviceCode: string;
   serviceName: string;
-  serviceIcon: string;
+  serviceIcon?: string;
   description: string | null;
   status: ServiceStatus;
   createdAt: string;
@@ -36,7 +36,7 @@ export interface ServiceSummary {
   platforms: {
     android: PlatformCredentialSummary;
     ios: PlatformCredentialSummary;
-  };
+  } | null;
 }
 
 // 서비스 상세
@@ -48,271 +48,66 @@ export interface ServiceDetail extends ServiceSummary {
   hasFcmCredentials: boolean;
   createdByName: string | null;
   updatedAt: string | null;
+  apnsBundleId?: string | null;
+  apnsKeyId?: string | null;
+  apnsTeamId?: string | null;
+  webhookUrl?: string | null;
+  tags?: string | null;
+  subTier?: string | null;
+  subStartedAt?: string | null;
+  allowedIps?: string[] | null;
 }
 
-// 목 데이터 - 서비스 목록
-export const MOCK_SERVICES: ServiceSummary[] = [
-  {
-    serviceCode: "svc-factory-01",
-    serviceName: "스마트 팩토리 모니터링",
-    serviceIcon: "smart_toy",
-    description: "공장 모니터링 시스템을 위한 푸시 알림 서비스",
-    status: SERVICE_STATUS.ACTIVE,
-    createdAt: "2023-11-01",
-    deviceCount: 12540,
-    platforms: {
-      android: {
-        registered: true,
-        credentialStatus: "ok",
-        statusReason: null,
-        expiresAt: null,
-      },
-      ios: {
-        registered: false,
-        credentialStatus: null,
-        statusReason: null,
-        expiresAt: null,
-      },
-    },
-  },
-  {
-    serviceCode: "svc-logistics-02",
-    serviceName: "물류 배송 추적",
-    serviceIcon: "local_shipping",
-    description: "배송 추적 알림 서비스",
-    status: SERVICE_STATUS.ACTIVE,
-    createdAt: "2023-10-28",
-    deviceCount: 3205,
-    platforms: {
-      android: {
-        registered: false,
-        credentialStatus: null,
-        statusReason: null,
-        expiresAt: null,
-      },
-      ios: {
-        registered: true,
-        credentialStatus: "ok",
-        statusReason: null,
-        expiresAt: null,
-      },
-    },
-  },
-  {
-    serviceCode: "svc-messenger-03",
-    serviceName: "사내 메신저 Pro",
-    serviceIcon: "forum",
-    description: "사내 메신저 푸시 알림",
-    status: SERVICE_STATUS.SUSPENDED,
-    createdAt: "2023-10-15",
-    deviceCount: 850,
-    platforms: {
-      android: {
-        registered: true,
-        credentialStatus: "ok",
-        statusReason: null,
-        expiresAt: null,
-      },
-      ios: {
-        registered: true,
-        credentialStatus: "warn",
-        statusReason: "인증서 만료 30일 전",
-        expiresAt: "2024-06-15",
-      },
-    },
-  },
-  {
-    serviceCode: "svc-inventory-04",
-    serviceName: "매장 재고 관리",
-    serviceIcon: "inventory_2",
-    description: "매장 재고 변동 알림",
-    status: SERVICE_STATUS.ACTIVE,
-    createdAt: "2023-10-10",
-    deviceCount: 4100,
-    platforms: {
-      android: {
-        registered: true,
-        credentialStatus: "warn",
-        statusReason: "FCM 키 갱신 필요",
-        expiresAt: "2024-07-01",
-      },
-      ios: {
-        registered: false,
-        credentialStatus: null,
-        statusReason: null,
-        expiresAt: null,
-      },
-    },
-  },
-  {
-    serviceCode: "svc-access-05",
-    serviceName: "방문자 출입 통제",
-    serviceIcon: "door_front",
-    description: "출입 통제 시스템 알림",
-    status: SERVICE_STATUS.ACTIVE,
-    createdAt: "2023-10-05",
-    deviceCount: 18,
-    platforms: {
-      android: {
-        registered: false,
-        credentialStatus: null,
-        statusReason: null,
-        expiresAt: null,
-      },
-      ios: {
-        registered: true,
-        credentialStatus: "error",
-        statusReason: "인증서 만료됨",
-        expiresAt: "2024-01-01",
-      },
-    },
-  },
-  {
-    serviceCode: "svc-shop-06",
-    serviceName: "스마트 쇼핑몰",
-    serviceIcon: "shopping_bag",
-    description: "쇼핑몰 알림 서비스",
-    status: SERVICE_STATUS.ACTIVE,
-    createdAt: "2023-09-20",
-    deviceCount: 8320,
-    platforms: {
-      android: {
-        registered: true,
-        credentialStatus: "ok",
-        statusReason: null,
-        expiresAt: null,
-      },
-      ios: {
-        registered: true,
-        credentialStatus: "ok",
-        statusReason: null,
-        expiresAt: null,
-      },
-    },
-  },
-  {
-    serviceCode: "svc-health-07",
-    serviceName: "헬스케어 알림",
-    serviceIcon: "health_and_safety",
-    description: "건강 관리 알림 서비스",
-    status: SERVICE_STATUS.ACTIVE,
-    createdAt: "2023-09-15",
-    deviceCount: 1560,
-    platforms: {
-      android: {
-        registered: true,
-        credentialStatus: "error",
-        statusReason: "FCM 서비스 계정 만료",
-        expiresAt: "2024-02-01",
-      },
-      ios: {
-        registered: false,
-        credentialStatus: null,
-        statusReason: null,
-        expiresAt: null,
-      },
-    },
-  },
-  {
-    serviceCode: "svc-edu-08",
-    serviceName: "교육 플랫폼",
-    serviceIcon: "school",
-    description: "교육 콘텐츠 알림",
-    status: SERVICE_STATUS.SUSPENDED,
-    createdAt: "2023-09-01",
-    deviceCount: 5430,
-    platforms: {
-      android: {
-        registered: true,
-        credentialStatus: "warn",
-        statusReason: "FCM 키 갱신 권장",
-        expiresAt: "2024-08-01",
-      },
-      ios: {
-        registered: true,
-        credentialStatus: "error",
-        statusReason: "인증서 만료됨",
-        expiresAt: "2024-03-01",
-      },
-    },
-  },
-  {
-    serviceCode: "svc-food-09",
-    serviceName: "푸드 딜리버리",
-    serviceIcon: "restaurant",
-    description: "음식 배달 알림",
-    status: SERVICE_STATUS.ACTIVE,
-    createdAt: "2023-08-25",
-    deviceCount: 22180,
-    platforms: {
-      android: {
-        registered: false,
-        credentialStatus: null,
-        statusReason: null,
-        expiresAt: null,
-      },
-      ios: {
-        registered: true,
-        credentialStatus: "warn",
-        statusReason: "인증서 만료 60일 전",
-        expiresAt: "2024-09-01",
-      },
-    },
-  },
-  {
-    serviceCode: "svc-fleet-10",
-    serviceName: "차량 관제 시스템",
-    serviceIcon: "directions_car",
-    description: "차량 관제 알림",
-    status: SERVICE_STATUS.ACTIVE,
-    createdAt: "2023-08-10",
-    deviceCount: 640,
-    platforms: {
-      android: {
-        registered: true,
-        credentialStatus: "ok",
-        statusReason: null,
-        expiresAt: null,
-      },
-      ios: {
-        registered: false,
-        credentialStatus: null,
-        statusReason: null,
-        expiresAt: null,
-      },
-    },
-  },
-];
+// 서비스 목록 요청
+export interface ServiceListRequest {
+  page: number;
+  pageSize: number;
+  searchKeyword?: string;
+  status?: number; // 0=Active, 1=Suspended, undefined=전체
+}
 
-// 목 데이터 - 서비스 상세
-export const MOCK_SERVICE_DETAIL: ServiceDetail = {
-  serviceCode: "svc-factory-monitoring-01",
-  serviceName: "(주) 미래테크",
-  serviceIcon: "corporate_fare",
-  description:
-    "공장 모니터링 시스템을 위한 푸시 알림 서비스입니다. 설비 이상 감지, 작업 지시, 안전 알림 등을 실시간으로 전달합니다.",
-  status: SERVICE_STATUS.ACTIVE,
-  createdAt: "2023-10-15",
-  deviceCount: 1240,
-  platforms: {
-    android: {
-      registered: true,
-      credentialStatus: "error",
-      statusReason: "인증서를 등록해주세요",
-      expiresAt: null,
-    },
-    ios: {
-      registered: true,
-      credentialStatus: "warn",
-      statusReason: ".p12 인증서 만료 30일 전",
-      expiresAt: "2024-06-15",
-    },
-  },
-  apiKey: "a3f8k2m1x9c4b7e0d5g6h8j2l4n7p0q3r5s8t1u6v9w2y4z0A3B7C1D5E9F2G6H0",
-  apiKeyCreatedAt: "2023-10-15",
-  apnsAuthType: "p12",
-  hasApnsKey: true,
-  hasFcmCredentials: false,
-  createdByName: "Admin User",
-  updatedAt: "2024-05-12",
-};
+// API 키 응답 (view/refresh 공용)
+export interface ApiKeyResponse {
+  serviceCode: string;
+  apiKey: string;
+  apiKeyCreatedAt: string;
+}
+
+// 서비스 생성 요청
+export interface CreateServiceRequest {
+  serviceName: string;
+  description?: string | null;
+}
+
+// 서비스 생성 응답 (API Key 1회 표시)
+export interface CreateServiceResponse {
+  serviceCode: string;
+  apiKey: string;
+  apiKeyCreatedAt: string;
+}
+
+// 서비스 수정 요청
+export interface UpdateServiceRequest {
+  serviceCode: string;
+  serviceName?: string | null;
+  description?: string | null;
+  status?: number | null; // 0=Active, 1=Suspended
+}
+
+// FCM 인증서 등록 요청
+export interface RegisterFcmRequest {
+  serviceAccountJson: string; // JSON 파일 내용 (문자열)
+}
+
+// APNs 인증서 등록 요청
+export interface RegisterApnsRequest {
+  authType: "p8" | "p12";
+  bundleId: string;
+  // p8 전용
+  keyId?: string;
+  teamId?: string;
+  privateKey?: string;
+  // p12 전용
+  certificateBase64?: string;
+  certPassword?: string;
+}
diff --git a/react/src/types/api.ts b/react/src/types/api.ts
index d5160ab..4070366 100644
--- a/react/src/types/api.ts
+++ b/react/src/types/api.ts
@@ -13,7 +13,7 @@ export interface PaginatedResponse<T> {
   msg: string | null;
   data: {
     items: T[];
-    total: number;
+    totalCount: number;
     page: number;
     pageSize: number;
     totalPages: number;