diff --git a/apps/backend/package.json b/apps/backend/package.json
index 1d8a57e..c194228 100644
--- a/apps/backend/package.json
+++ b/apps/backend/package.json
@@ -8,8 +8,9 @@
     "start:dev": "nest start --watch",
     "start:prod": "node dist/main",
     "lint": "eslint \"{src,test}/**/*.ts\"",
-    "test": "VITE_CJS_IGNORE_WARNING=1 vitest run",
-    "test:watch": "vitest"
+    "test": "VITE_CJS_IGNORE_WARNING=1 vitest run --exclude \"src/**/*.integration.spec.ts\"",
+    "test:watch": "vitest --exclude \"src/**/*.integration.spec.ts\"",
+    "test:integration": "MOEX_LIVE_TESTS=1 VITE_CJS_IGNORE_WARNING=1 vitest run \"src/**/*.integration.spec.ts\""
   },
   "dependencies": {
     "@libsql/client": "^0.17.3",
diff --git a/apps/backend/src/modules/moex-client/moex-client.service.integration.spec.ts b/apps/backend/src/modules/moex-client/moex-client.service.integration.spec.ts
new file mode 100644
index 0000000..ff2ae26
--- /dev/null
+++ b/apps/backend/src/modules/moex-client/moex-client.service.integration.spec.ts
@@ -0,0 +1,35 @@
+import 'reflect-metadata';
+import { Test, TestingModule } from '@nestjs/testing';
+import { ConfigModule } from '@nestjs/config';
+import { MoexClientService } from './moex-client.service';
+import configuration from '../../config/configuration';
+
+describe.skipIf(process.env.MOEX_LIVE_TESTS !== '1')(
+  'MoexClientService live MOEX integration',
+  () => {
+    let service: MoexClientService;
+
+    beforeEach(async () => {
+      const module: TestingModule = await Test.createTestingModule({
+        imports: [ConfigModule.forRoot({ load: [configuration] })],
+        providers: [MoexClientService],
+      }).compile();
+
+      service = module.get<MoexClientService>(MoexClientService);
+    });
+
+    it('возвращает результаты поиска для SBER из live MOEX', async () => {
+      const results = await service.searchSecurities('SBER');
+
+      expect(results.length).toBeGreaterThan(0);
+      expect(results[0].secid).toBeDefined();
+    }, 15000);
+
+    it('возвращает рыночные данные SBER из live MOEX', async () => {
+      const data = await service.getShareMarketData('SBER');
+
+      expect(data).toBeDefined();
+      expect(data!.secid).toBe('SBER');
+    }, 15000);
+  },
+);
diff --git a/apps/backend/src/modules/moex-client/moex-client.service.spec.ts b/apps/backend/src/modules/moex-client/moex-client.service.spec.ts
index 5921972..3b13bb7 100644
--- a/apps/backend/src/modules/moex-client/moex-client.service.spec.ts
+++ b/apps/backend/src/modules/moex-client/moex-client.service.spec.ts
@@ -1,38 +1,186 @@
 import 'reflect-metadata';
-import { Test, TestingModule } from '@nestjs/testing';
-import { ConfigModule } from '@nestjs/config';
+import axios from 'axios';
+import { ConfigService } from '@nestjs/config';
 import { MoexClientService } from './moex-client.service';
-import configuration from '../../config/configuration';
+
+vi.mock('axios', () => ({
+  default: {
+    create: vi.fn(),
+  },
+}));
 
 describe('MoexClientService', () => {
   let service: MoexClientService;
+  let getMock: ReturnType<typeof vi.fn>;
 
-  beforeEach(async () => {
-    const module: TestingModule = await Test.createTestingModule({
-      imports: [ConfigModule.forRoot({ load: [configuration] })],
-      providers: [MoexClientService],
-    }).compile();
+  beforeEach(() => {
+    getMock = vi.fn();
+    vi.mocked(axios.create).mockReturnValue({ get: getMock } as never);
 
-    service = module.get<MoexClientService>(MoexClientService);
+    service = new MoexClientService({
+      get: vi.fn((key: string, fallback?: unknown) => {
+        const values: Record<string, unknown> = {
+          'app.moex.baseUrl': 'https://iss.moex.test/iss',
+          'app.moex.circuitBreakerThreshold': 5,
+          'app.moex.circuitBreakerResetSeconds': 30,
+          'app.moex.rateLimit': 10,
+        };
+        return values[key] ?? fallback;
+      }),
+    } as unknown as ConfigService);
   });
 
-  it('should be defined', () => {
+  it('создаётся с настроенным MOEX client', () => {
     expect(service).toBeDefined();
+    expect(axios.create).toHaveBeenCalledWith({
+      baseURL: 'https://iss.moex.test/iss',
+      timeout: 10000,
+      paramsSerializer: { indexes: null },
+    });
   });
 
-  describe('searchSecurities', () => {
-    it('should return results for SBER query', async () => {
-      const results = await service.searchSecurities('SBER');
-      expect(results.length).toBeGreaterThan(0);
-      expect(results[0].secid).toBeDefined();
-    }, 15000);
+  it('нормализует результаты поиска из ISS table format', async () => {
+    getMock.mockResolvedValueOnce({
+      data: {
+        securities: {
+          columns: [
+            'secid',
+            'isin',
+            'name',
+            'shortName',
+            'latName',
+            'listLevel',
+            'issuesize',
+            'facevalue',
+            'faceunit',
+            'issuedate',
+            'typename',
+            'group',
+            'type',
+            'isqualifiedinvestors',
+            'morningsession',
+            'eveningsession',
+          ],
+          data: [
+            [
+              'SBER',
+              'RU0009029540',
+              'Сбербанк России ПАО ао',
+              'Сбербанк',
+              'Sberbank',
+              '1',
+              '21586948000',
+              '3',
+              'SUR',
+              '2007-07-20',
+              'Акция обыкновенная',
+              'stock_shares',
+              'common_share',
+              '0',
+              '1',
+              '1',
+            ],
+          ],
+        },
+      },
+    });
+
+    const results = await service.searchSecurities('SBER');
+
+    expect(getMock).toHaveBeenCalledWith('/securities.json', {
+      params: { q: 'SBER', 'iss.meta': 'off' },
+    });
+    expect(results).toEqual([
+      {
+        secid: 'SBER',
+        isin: 'RU0009029540',
+        name: 'Сбербанк России ПАО ао',
+        shortName: 'Сбербанк',
+        latName: 'Sberbank',
+        listLevel: 1,
+        issueSize: 21586948000,
+        faceValue: 3,
+        faceUnit: 'SUR',
+        issueDate: '2007-07-20',
+        typeName: 'Акция обыкновенная',
+        group: 'stock_shares',
+        type: 'common_share',
+        isQualifiedInvestors: false,
+        morningSession: true,
+        eveningSession: true,
+      },
+    ]);
   });
 
-  describe('getShareMarketData', () => {
-    it('should return market data for SBER', async () => {
-      const data = await service.getShareMarketData('SBER');
-      expect(data).toBeDefined();
-      expect(data!.secid).toBe('SBER');
-    }, 15000);
+  it('нормализует market data акции без live MOEX запроса', async () => {
+    getMock.mockResolvedValueOnce({
+      data: {
+        securities: {
+          columns: ['SECID', 'BOARDID', 'SHORTNAME', 'PREVPRICE'],
+          data: [['SBER', 'TQBR', 'Сбербанк', '320.10']],
+        },
+        marketdata: {
+          columns: [
+            'SECID',
+            'BOARDID',
+            'BID',
+            'OFFER',
+            'OPEN',
+            'LOW',
+            'HIGH',
+            'LAST',
+            'LASTCHANGE',
+            'LASTCHANGEPRCNT',
+            'VOLTODAY',
+            'VALTODAY',
+            'WAPRICE',
+            'NUMTRADES',
+            'ISSUECAPITALIZATION',
+            'TRADINGSTATUS',
+            'UPDATETIME',
+          ],
+          data: [
+            [
+              'SBER',
+              'TQBR',
+              '321',
+              '322',
+              '320',
+              '319',
+              '323',
+              '322.35',
+              '1.15',
+              '0.36',
+              '1925163',
+              '620184479',
+              '321.9',
+              '12345',
+              '6958336818320',
+              'T',
+              '10:30:00',
+            ],
+          ],
+        },
+      },
+    });
+
+    const data = await service.getShareMarketData('SBER');
+
+    expect(getMock).toHaveBeenCalledWith('/engines/stock/markets/shares/securities/SBER.json', {
+      params: { boards: 'TQBR', 'iss.meta': 'off' },
+    });
+    expect(data).toMatchObject({
+      secid: 'SBER',
+      boardid: 'TQBR',
+      shortName: 'Сбербанк',
+      last: 322.35,
+      lastChange: 1.15,
+      lastChangePrcnt: 0.36,
+      volume: 1925163,
+      value: 620184479,
+      issueCapitalization: 6958336818320,
+      tradingStatus: 'T',
+      updateTime: '10:30:00',
+    });
   });
 });