diff --git a/.changeset/brave-clocks-live.md b/.changeset/brave-clocks-live.md
new file mode 100644
index 00000000..ddf886d3
--- /dev/null
+++ b/.changeset/brave-clocks-live.md
@@ -0,0 +1,5 @@
+---
+'@moonbeam-network/xcm-sdk': minor
+---
+
+Sopport optional EvmSigner, Fix: PolkadotService asset get (not reflecting config service)
diff --git a/packages/sdk/src/getTransferData/getDestinationData.ts b/packages/sdk/src/getTransferData/getDestinationData.ts
index 076792b0..1f59fd0b 100644
--- a/packages/sdk/src/getTransferData/getDestinationData.ts
+++ b/packages/sdk/src/getTransferData/getDestinationData.ts
@@ -10,7 +10,7 @@ import { getBalance, getDecimals, getMin } from './getTransferData.utils';
 export interface GetDestinationDataParams {
   transferConfig: TransferConfig;
   destinationAddress: string;
-  evmSigner: EvmSigner;
+  evmSigner?: EvmSigner;
   polkadot: PolkadotService;
 }
 
diff --git a/packages/sdk/src/getTransferData/getSourceData.ts b/packages/sdk/src/getTransferData/getSourceData.ts
index 3e9b2eb6..7abb32ff 100644
--- a/packages/sdk/src/getTransferData/getSourceData.ts
+++ b/packages/sdk/src/getTransferData/getSourceData.ts
@@ -17,7 +17,7 @@ export interface GetSourceDataParams {
   transferConfig: TransferConfig;
   destinationAddress: string;
   destinationFee: AssetAmount;
-  evmSigner: EvmSigner;
+  evmSigner?: EvmSigner;
   polkadot: PolkadotService;
   sourceAddress: string;
 }
diff --git a/packages/sdk/src/getTransferData/getTransferData.ts b/packages/sdk/src/getTransferData/getTransferData.ts
index 90b49456..648e5eb6 100644
--- a/packages/sdk/src/getTransferData/getTransferData.ts
+++ b/packages/sdk/src/getTransferData/getTransferData.ts
@@ -1,6 +1,6 @@
 /* eslint-disable @typescript-eslint/no-use-before-define */
 import type { TransactionResponse } from '@ethersproject/abstract-provider';
-import { TransferConfig } from '@moonbeam-network/xcm-config';
+import { IConfigService, TransferConfig } from '@moonbeam-network/xcm-config';
 import { AssetAmount } from '@moonbeam-network/xcm-types';
 import { convertDecimals, toBigInt } from '@moonbeam-network/xcm-utils';
 import Big from 'big.js';
@@ -15,26 +15,24 @@ import { getDestinationData } from './getDestinationData';
 import { getSourceData } from './getSourceData';
 
 export interface GetTransferDataParams extends Partial<Signers> {
+  configService: IConfigService;
   destinationAddress: string;
   sourceAddress: string;
   transferConfig: TransferConfig;
 }
 
 export async function getTransferData({
+  configService,
   destinationAddress,
   evmSigner,
   polkadotSigner,
   sourceAddress,
   transferConfig,
 }: GetTransferDataParams): Promise<TransferData> {
-  if (!evmSigner) {
-    throw new Error('EVM Signer must be provided');
-  }
-
-  const [destPolkadot, srcPolkadot] = await PolkadotService.createMulti([
-    transferConfig.destination.chain,
-    transferConfig.source.chain,
-  ]);
+  const [destPolkadot, srcPolkadot] = await PolkadotService.createMulti(
+    [transferConfig.destination.chain, transferConfig.source.chain],
+    configService,
+  );
 
   const destination = await getDestinationData({
     destinationAddress,
@@ -82,6 +80,7 @@ export async function getTransferData({
     source,
     async swap() {
       return getTransferData({
+        configService,
         destinationAddress: sourceAddress,
         evmSigner,
         polkadotSigner,
diff --git a/packages/sdk/src/getTransferData/getTransferData.utils.ts b/packages/sdk/src/getTransferData/getTransferData.utils.ts
index b1af6a52..f0c4b1ac 100644
--- a/packages/sdk/src/getTransferData/getTransferData.utils.ts
+++ b/packages/sdk/src/getTransferData/getTransferData.utils.ts
@@ -9,7 +9,7 @@ import { EvmSigner } from '../sdk.interfaces';
 export interface GetFeeBalancesParams {
   address: string;
   config: AssetConfig;
-  evmSigner: EvmSigner;
+  evmSigner?: EvmSigner;
   polkadot: PolkadotService;
   asset?: Asset;
 }
@@ -29,6 +29,10 @@ export async function getBalance({
     return polkadot.query(cfg as SubstrateQueryConfig);
   }
 
+  if (!evmSigner) {
+    throw new Error('Evm signer must be provided');
+  }
+
   const contract = createContract(cfg, evmSigner) as BalanceContractInterface;
 
   return contract.getBalance();
@@ -50,6 +54,10 @@ export async function getDecimals({
     return polkadot.getAssetDecimals(asset || config.asset);
   }
 
+  if (!evmSigner) {
+    throw new Error('Evm signer must be provided');
+  }
+
   const contract = createContract(cfg, evmSigner) as BalanceContractInterface;
 
   return contract.getDecimals();
diff --git a/packages/sdk/src/polkadot/PolkadotService.ts b/packages/sdk/src/polkadot/PolkadotService.ts
index a7f4fa25..01368451 100644
--- a/packages/sdk/src/polkadot/PolkadotService.ts
+++ b/packages/sdk/src/polkadot/PolkadotService.ts
@@ -5,7 +5,7 @@ import {
   SubstrateQueryConfig,
 } from '@moonbeam-network/xcm-builder';
 import {
-  assetsMap,
+  IConfigService,
   darwiniaPangoro,
   eq,
   equilibriumAlphanet,
@@ -29,17 +29,38 @@ export class PolkadotService {
 
   readonly chain: AnyParachain;
 
-  constructor(api: ApiPromise, chain: AnyParachain) {
+  readonly configService: IConfigService;
+
+  constructor(
+    api: ApiPromise,
+    chain: AnyParachain,
+    configService: IConfigService,
+  ) {
     this.api = api;
     this.chain = chain;
+    this.configService = configService;
   }
 
-  static async create(chain: AnyParachain): Promise<PolkadotService> {
-    return new PolkadotService(await getPolkadotApi(chain.ws), chain);
+  static async create(
+    chain: AnyParachain,
+    configService: IConfigService,
+  ): Promise<PolkadotService> {
+    return new PolkadotService(
+      await getPolkadotApi(chain.ws),
+      chain,
+      configService,
+    );
   }
 
-  static async createMulti(chains: AnyParachain[]): Promise<PolkadotService[]> {
-    return Promise.all(chains.map(PolkadotService.create));
+  static async createMulti(
+    chains: AnyParachain[],
+    configService: IConfigService,
+  ): Promise<PolkadotService[]> {
+    return Promise.all(
+      chains.map((chain: AnyParachain) =>
+        PolkadotService.create(chain, configService),
+      ),
+    );
   }
 
   get decimals(): number {
@@ -65,7 +86,7 @@ export class PolkadotService {
       throw new Error('No native symbol key found');
     }
 
-    const asset = assetsMap.get(key);
+    const asset = this.configService.getAsset(key);
 
     if (!asset) {
       throw new Error(`No asset found for key "${key}" and symbol "${symbol}"`);
diff --git a/packages/sdk/src/sdk.ts b/packages/sdk/src/sdk.ts
index 6969c4d1..76701b88 100644
--- a/packages/sdk/src/sdk.ts
+++ b/packages/sdk/src/sdk.ts
@@ -1,5 +1,9 @@
 /* eslint-disable sort-keys */
-import { ConfigBuilder, IConfigService } from '@moonbeam-network/xcm-config';
+import {
+  ConfigBuilder,
+  ConfigService,
+  IConfigService,
+} from '@moonbeam-network/xcm-config';
 import { AnyChain, Asset, Ecosystem } from '@moonbeam-network/xcm-types';
 import { getTransferData as gtd } from './getTransferData/getTransferData';
 import { Signers, TransferData } from './sdk.interfaces';
@@ -9,7 +13,8 @@ export interface SdkOptions extends Partial<Signers> {
 }
 
 export function Sdk(options?: SdkOptions) {
-  const configService = options?.configService;
+  const configService = options?.configService ?? new ConfigService();
+
   return {
     assets(ecosystem?: Ecosystem) {
       const { assets, asset } = ConfigBuilder(configService).assets(ecosystem);
@@ -35,6 +40,7 @@ export function Sdk(options?: SdkOptions) {
                     ): Promise<TransferData> {
                       return gtd({
                         ...options,
+                        configService,
                         destinationAddress,
                         evmSigner: signers?.evmSigner ?? signers?.ethersSigner,
                         sourceAddress,
@@ -61,6 +67,7 @@ export function Sdk(options?: SdkOptions) {
       sourceKeyOrChain,
     }: SdkTransferParams): Promise<TransferData> {
       return gtd({
+        configService,
         destinationAddress,
         evmSigner: evmSigner ?? ethersSigner,
         polkadotSigner,