diff --git a/package.json b/package.json
index 460e491dc2..18a05f1809 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
     "name": "rubic-sdk",
-    "version": "5.40.2",
+    "version": "5.40.3",
     "description": "Simplify dApp creation",
     "main": "lib/index.js",
     "types": "lib/index.d.ts",
@@ -84,7 +84,7 @@
         "@solana/web3.js": "^1.89.1",
         "@solflare-wallet/utl-sdk": "^1.4.0",
         "@ston-fi/api": "^0.12.1",
-        "@ston-fi/sdk": "2.0.0-rc.7",
+        "@ston-fi/sdk": "2.0.0-rc.8",
         "@ton/core": "^0.52.0",
         "@ton/crypto": "^3.3.0",
         "@ton/ton": "^15.0.0",
diff --git a/src/core/blockchain/web3-pure/typed-web3-pure/ton-web3-pure/ton-web3-pure.ts b/src/core/blockchain/web3-pure/typed-web3-pure/ton-web3-pure/ton-web3-pure.ts
index 378af2da6f..32565d9824 100644
--- a/src/core/blockchain/web3-pure/typed-web3-pure/ton-web3-pure/ton-web3-pure.ts
+++ b/src/core/blockchain/web3-pure/typed-web3-pure/ton-web3-pure/ton-web3-pure.ts
@@ -3,15 +3,15 @@ import { RubicSdkError } from 'src/common/errors';
 import { compareAddresses } from 'src/common/utils/blockchain';
 import { staticImplements } from 'src/common/utils/decorators';
 import { TonApiParseAddressResp, TonApiResp } from 'src/core/blockchain/models/ton/tonapi-types';
-import {
-    TONAPI_API_KEY,
-    TONAPI_API_URL
-} from 'src/core/blockchain/services/constants/ton-constants';
 import { TypedWeb3Pure } from 'src/core/blockchain/web3-pure/typed-web3-pure/typed-web3-pure';
 import { Injector } from 'src/core/injector/injector';
 
 @staticImplements<TypedWeb3Pure>()
 export class TonWeb3Pure {
+    private static readonly xApiUrl = 'https://x-api.rubic.exchange/tonapi';
+
+    private static readonly xApiKey = 'sndfje3u4b3fnNSDNFUSDNVSunw345842hrnfd3b4nt4';
+
     public static readonly EMPTY_ADDRESS = '0x0000000000000000000000000000000000000000';
 
     public static get nativeTokenAddress(): string {
@@ -51,10 +51,10 @@ export class TonWeb3Pure {
         walletAddress: string
     ): Promise<TonApiParseAddressResp> {
         const res = await Injector.httpClient.get<TonApiResp<TonApiParseAddressResp>>(
-            `${TONAPI_API_URL}/address/${walletAddress}/parse`,
+            `${this.xApiUrl}/v2/address/${walletAddress}/parse`,
             {
                 headers: {
-                    Authorization: TONAPI_API_KEY
+                    apikey: this.xApiKey
                 }
             }
         );
diff --git a/src/features/on-chain/calculation-manager/providers/aggregators/stonfi/services/stonfi-swap-service-v2.ts b/src/features/on-chain/calculation-manager/providers/aggregators/stonfi/services/stonfi-swap-service-v2.ts
index 46fab625e2..9ab261b1e9 100644
--- a/src/features/on-chain/calculation-manager/providers/aggregators/stonfi/services/stonfi-swap-service-v2.ts
+++ b/src/features/on-chain/calculation-manager/providers/aggregators/stonfi/services/stonfi-swap-service-v2.ts
@@ -13,53 +13,60 @@ export class StonfiSwapServiceV2 implements StonfiTxParamsProvider {
         return TonClientInstance.getInstance();
     }
 
-    private readonly stonfiRouter = this.tonClient.open(
-        DEX.v2_1.Router.create('kQALh-JBBIKK7gr0o4AVf9JZnEsFndqO0qTCyT-D-yBsWk0v')
-    );
-
     public async getTxParams(
         from: PriceTokenAmount,
         to: PriceTokenAmount,
         walletAddress: string,
         minAmountOutWei: string
     ): Promise<TonEncodedConfig> {
+        const stonfiRouter = this.tonClient.open(
+            DEX.v2_2.Router.create('kQALh-JBBIKK7gr0o4AVf9JZnEsFndqO0qTCyT-D-yBsWk0v')
+        );
         const proxyTon = pTON.v2_1.create('kQACS30DNoUQ7NfApPvzh7eBmSZ9L4ygJ-lkNWtba8TQT-Px');
 
-        if (from.isNative) {
-            const txParams = await this.stonfiRouter.getSwapTonToJettonTxParams({
-                userWalletAddress: walletAddress,
-                proxyTon,
-                offerAmount: from.stringWeiAmount,
-                askJettonAddress: to.address,
-                minAskAmount: minAmountOutWei,
-                referralAddress: STONFI_REFERRAL_ADDRESS
-            });
+        try {
+            if (from.isNative) {
+                const txParams = await stonfiRouter.getSwapTonToJettonTxParams({
+                    userWalletAddress: walletAddress,
+                    proxyTon,
+                    offerAmount: from.stringWeiAmount,
+                    askJettonAddress: to.address,
+                    minAskAmount: minAmountOutWei,
+                    referralValue: 100,
+                    referralAddress: STONFI_REFERRAL_ADDRESS
+                });
 
-            return convertTxParamsToTonConfig(txParams);
-        }
+                return convertTxParamsToTonConfig(txParams);
+            }
+
+            if (to.isNative) {
+                const txParams = await stonfiRouter.getSwapJettonToTonTxParams({
+                    userWalletAddress: walletAddress,
+                    offerJettonAddress: from.address,
+                    offerAmount: from.stringWeiAmount,
+                    proxyTon,
+                    minAskAmount: minAmountOutWei,
+                    referralValue: 100,
+                    referralAddress: STONFI_REFERRAL_ADDRESS
+                });
+
+                return convertTxParamsToTonConfig(txParams);
+            }
 
-        if (to.isNative) {
-            const txParams = await this.stonfiRouter.getSwapJettonToTonTxParams({
+            const txParams = await stonfiRouter.getSwapJettonToJettonTxParams({
                 userWalletAddress: walletAddress,
                 offerJettonAddress: from.address,
                 offerAmount: from.stringWeiAmount,
-                proxyTon,
+                askJettonAddress: to.address,
                 minAskAmount: minAmountOutWei,
+                referralValue: 100,
                 referralAddress: STONFI_REFERRAL_ADDRESS
             });
 
             return convertTxParamsToTonConfig(txParams);
+        } catch (err) {
+            console.log('getTxParams_ERROR ==> ', err);
+            throw err;
         }
-
-        const txParams = await this.stonfiRouter.getSwapJettonToJettonTxParams({
-            userWalletAddress: walletAddress,
-            offerJettonAddress: from.address,
-            offerAmount: from.stringWeiAmount,
-            askJettonAddress: to.address,
-            minAskAmount: minAmountOutWei,
-            referralAddress: STONFI_REFERRAL_ADDRESS
-        });
-
-        return convertTxParamsToTonConfig(txParams);
     }
 }
diff --git a/yarn.lock b/yarn.lock
index 2ebd22a1f1..f343204469 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -2887,10 +2887,10 @@
     decamelize-keys "2.0.1"
     ofetch "1.3.4"
 
-"@ston-fi/sdk@2.0.0-rc.7":
-  version "2.0.0-rc.7"
-  resolved "https://registry.yarnpkg.com/@ston-fi/sdk/-/sdk-2.0.0-rc.7.tgz#479bfd6ebc00cb749d755c00b6c3c2d7199a784b"
-  integrity sha512-5a04aX7FWq9Sm2/Ox2WayOpeoJ5VQH6Fnn/hiL8rW4wn7obwzAJgllnodwOQQNWw/z/Vb5BJHo2Ur5o7tymfXg==
+"@ston-fi/sdk@2.0.0-rc.8":
+  version "2.0.0-rc.8"
+  resolved "https://registry.yarnpkg.com/@ston-fi/sdk/-/sdk-2.0.0-rc.8.tgz#c6b7260dfe29c27ec5e63f88af84ac24a730accd"
+  integrity sha512-9+9qBhdGzTVsC3iDHVQnrEFU7N7mdlGKbn57pHJrVfZiGm/55X5IPl4DKclbdtl9Gtjf9Kf8bBLweMEwzHntGw==
 
 "@supercharge/promise-pool@^2.1.0":
   version "2.4.0"