diff --git a/src/app/interceptors/mock-data.interceptor.ts b/src/app/interceptors/mock-data.interceptor.ts
index 3f821ac..4384364 100644
--- a/src/app/interceptors/mock-data.interceptor.ts
+++ b/src/app/interceptors/mock-data.interceptor.ts
@@ -800,14 +800,6 @@ export const mockDataInterceptor: HttpInterceptorFn = (req, next) => {
     }, 300);
   }
 
-  // ── GET /qr/settings
-  if (url.endsWith('/qr/settings') && req.method === 'GET') {
-    return respond({
-      minAmount: 30,
-      maxAmount: 200000,
-    });
-  }
-
   // ── POST /qr (create payment QR directly)
   if (url.endsWith('/qr') && req.method === 'POST') {
     return respond({
@@ -866,27 +858,7 @@ export const mockDataInterceptor: HttpInterceptorFn = (req, next) => {
     }, 500);
   }
 
-  // ── GET /qr/dynamic/:partnerID/:qrID (dynamic QR status)
-  if (url.match(/\/qr\/dynamic\/[^/]+\/[^/]+$/) && req.method === 'GET') {
-    return respond({
-      status: 'APPROVED',
-      paymentStatus: 'COMPLETED',
-      code: 'SUCCESS',
-      amount: 0,
-      currency: 'RUB',
-      qrId: 'mock',
-      transactionId: 999,
-      transactionDate: new Date().toISOString(),
-      additionalInfo: '',
-      paymentPurpose: '',
-      createDate: new Date().toISOString(),
-      order: 'mock-order',
-      qrExpirationDate: new Date().toISOString(),
-      phoneNumber: '+70000000000'
-    }, 500);
-  }
-
-  // ── GET /qr/payment/:qrId (legacy/direct payment status)
+  // ── GET /qr/payment/:qrId (payment status)
   if (url.match(/\/qr\/payment\/[^/]+$/) && req.method === 'GET') {
     return respond({
       paymentStatus: 'COMPLETED',
diff --git a/src/app/pages/cart/cart.component.ts b/src/app/pages/cart/cart.component.ts
index 4e41a2f..f81fb4c 100644
--- a/src/app/pages/cart/cart.component.ts
+++ b/src/app/pages/cart/cart.component.ts
@@ -58,7 +58,6 @@ export class CartComponent implements OnDestroy {
   maxChecks = PAYMENT_MAX_CHECKS;
   private pollingSubscription?: Subscription;
   private closeTimeout?: ReturnType<typeof setTimeout>;
-  private qrPartnerId = '';
 
   constructor(
     private cartService: CartService,
@@ -160,7 +159,6 @@ export class CartComponent implements OnDestroy {
   openPaymentPopup(): void {
     this.showPaymentPopup.set(true);
     this.paymentStatus.set('creating');
-    this.qrPartnerId = '';
     this.paymentId.set('');
     this.qrCodeUrl.set('');
     this.paymentUrl.set('');
@@ -192,7 +190,6 @@ export class CartComponent implements OnDestroy {
     }
 
     this.paymentStatus.set('creating');
-    this.qrPartnerId = '';
     this.paymentId.set('');
     this.qrCodeUrl.set('');
     this.paymentUrl.set('');
@@ -202,12 +199,6 @@ export class CartComponent implements OnDestroy {
 
   createPayment(): void {
     const sessionId = this.authService.session()?.sessionId || '';
-    const partnerQrId = this.getPartnerQrId();
-    if (!partnerQrId) {
-      this.setPaymentError();
-      return;
-    }
-
     const cartItems = this.items().map((item: CartItem) => ({
       itemID: item.itemID,
       quantity: item.quantity,
@@ -227,22 +218,26 @@ export class CartComponent implements OnDestroy {
         )
       : of(null);
 
-    const userIdValue = this.getUrlParam('userid-value') || undefined;
-    const authorizationKey = this.getUrlParam('authorization-key') || undefined;
-    const qrPayload = {
-      qrtype: 'QRDynamic' as const,
+    const paymentPayload = {
       amount: Number(this.totalPrice()),
-      currency: 'RUB' as const,
-      partnerqrID: partnerQrId,
-      qrDescription: `Order ${this.generateOrderId()}, total: ${this.totalPrice().toFixed(2)} ${this.currentCurrency}`,
-      Userid: userIdValue ?? this.getPaymentUserId(),
-      Reference: this.getUrlParam('ref') || (typeof window !== 'undefined' ? window.location.hostname : ''),
-      RedirectUrl: typeof window !== 'undefined' ? window.location.origin : undefined,
+      currency: this.currentCurrency,
+      siteuserID: this.getPaymentUserId(),
+      siteorderID: this.generateOrderId(),
+      redirectUrl: '',
+      telegramUsername: this.getTelegramUsername(),
+      items: this.items().map((item: CartItem) => ({
+        itemID: item.itemID,
+        price: item.discount > 0
+          ? item.price * (1 - item.discount / 100)
+          : item.price,
+        name: item.name,
+        quantity: item.quantity,
+      })),
     };
 
     syncCart$
       .pipe(
-        switchMap(() => this.apiService.createPayment(qrPayload, { authorizationKey, userIdValue }))
+        switchMap(() => this.apiService.createPayment(paymentPayload))
       )
       .subscribe({
           next: (response) => {
@@ -256,7 +251,6 @@ export class CartComponent implements OnDestroy {
               return;
             }
 
-            this.qrPartnerId = partnerQrId;
             this.paymentId.set(qrId);
             this.qrCodeUrl.set(qrUrl);
             this.paymentUrl.set(paymentLink);
@@ -278,7 +272,7 @@ export class CartComponent implements OnDestroy {
 
   startPolling(): void {
     this.stopPolling();
-    if (!this.qrPartnerId || !this.paymentId()) {
+    if (!this.paymentId()) {
       this.setPaymentError();
       return;
     }
@@ -287,7 +281,7 @@ export class CartComponent implements OnDestroy {
       .pipe(
         take(this.maxChecks), // maximum 36 checks (3 minutes)
         switchMap(() => {
-          return this.apiService.checkPaymentStatus(this.qrPartnerId, this.paymentId()).pipe(
+          return this.apiService.checkPaymentStatus(this.paymentId()).pipe(
             catchError((err) => {
               console.error('Error checking payment status:', err);
               return of(null);
@@ -348,7 +342,6 @@ export class CartComponent implements OnDestroy {
   private setPaymentError(): void {
     this.paymentStatus.set('error');
     this.stopPolling();
-    this.qrPartnerId = '';
     if (this.closeTimeout) {
       clearTimeout(this.closeTimeout);
       this.closeTimeout = undefined;
@@ -452,24 +445,6 @@ export class CartComponent implements OnDestroy {
     return this.getTelegramUserId() ?? `web_${Date.now()}`;
   }
 
-  private getPartnerQrId(): string {
-    const fromQuery = this.getUrlParam('id');
-    if (fromQuery) {
-      return fromQuery;
-    }
-
-    const envValue = (environment as unknown as Record<string, unknown>)['partnerqrID'];
-    return typeof envValue === 'string' ? envValue : '';
-  }
-
-  private getUrlParam(name: string): string | null {
-    if (typeof window === 'undefined') {
-      return null;
-    }
-
-    return new URLSearchParams(window.location.search).get(name);
-  }
-
   private generateOrderId(): string {
     const timestamp = Date.now();
     const random = Math.random().toString(36).substring(2, 8);
diff --git a/src/app/services/api.service.ts b/src/app/services/api.service.ts
index fbefdd6..522c8c5 100644
--- a/src/app/services/api.service.ts
+++ b/src/app/services/api.service.ts
@@ -1,19 +1,18 @@
 import { Injectable } from '@angular/core';
-import { HttpClient, HttpHeaders, HttpParams } from '@angular/common/http';
+import { HttpClient, HttpParams } from '@angular/common/http';
 import { Observable, timer } from 'rxjs';
 import { map, retry } from 'rxjs/operators';
 import { Category, Item, Subcategory } from '../models';
 import { environment } from '../../environments/environment';
 
-export interface QrCreateRequest {
-  qrtype: 'QRDynamic';
+export interface PaymentCreateRequest {
   amount: number;
-  currency: 'RUB';
-  partnerqrID: string;
-  qrDescription?: string;
-  Userid?: string;
-  Reference?: string;
-  RedirectUrl?: string;
+  currency: string;
+  siteuserID: string;
+  siteorderID: string;
+  redirectUrl: string;
+  telegramUsername: string;
+  items: Array<{ itemID: number; price: number; name: string; quantity?: number }>;
 }
 
 export interface QrCreateResponse {
@@ -34,8 +33,7 @@ export interface QrCreateResponse {
   PartnerID?: string | number;
 }
 
-export interface QrStatusResponse {
-  status?: string;
+export interface PaymentStatusResponse {
   additionalInfo: string;
   paymentPurpose: string;
   amount: number;
@@ -393,23 +391,12 @@ export class ApiService {
     return this.http.post<{ message: string }>(`${this.baseUrl}/items/${itemID}/questiion`, body);
   }
 
-  createPayment(payload: QrCreateRequest, headers?: { authorizationKey?: string; userIdValue?: string }): Observable<QrCreateResponse> {
-    let httpHeaders = new HttpHeaders();
-
-    if (headers?.authorizationKey) {
-      httpHeaders = httpHeaders.set('authorization-key', headers.authorizationKey);
-    }
-    if (headers?.userIdValue) {
-      httpHeaders = httpHeaders.set('userid-value', headers.userIdValue);
-    }
-
-    return this.http.post<QrCreateResponse>(`${this.baseUrl}/qr`, payload, { headers: httpHeaders });
+  createPayment(payload: PaymentCreateRequest): Observable<QrCreateResponse> {
+    return this.http.post<QrCreateResponse>(`${this.baseUrl}/cart`, payload);
   }
 
-  checkPaymentStatus(partnerQrId: string, qrId: string): Observable<QrStatusResponse> {
-    return this.http.get<QrStatusResponse>(
-      `${this.baseUrl}/qr/dynamic/${encodeURIComponent(partnerQrId)}/${encodeURIComponent(qrId)}`
-    );
+  checkPaymentStatus(qrId: string): Observable<PaymentStatusResponse> {
+    return this.http.get<PaymentStatusResponse>(`${this.baseUrl}/qr/payment/${encodeURIComponent(qrId)}`);
   }
 
   resolvePaymentQrId(response: QrCreateResponse): string {