diff --git a/balancer-js/src/modules/sor/pool-data/onChainData.spec.ts b/balancer-js/src/modules/sor/pool-data/onChainData.spec.ts
index 43eb949bc..592438d64 100644
--- a/balancer-js/src/modules/sor/pool-data/onChainData.spec.ts
+++ b/balancer-js/src/modules/sor/pool-data/onChainData.spec.ts
@@ -2,22 +2,36 @@ import dotenv from 'dotenv';
 dotenv.config();
 import { expect } from 'chai';
 import { cloneDeep } from 'lodash';
-import { BALANCER_NETWORK_CONFIG, Network, PoolsSubgraphRepository } from '@/.';
-import { getOnChainPools } from './onChainData';
 import { JsonRpcProvider } from '@ethersproject/providers';
 
+import {
+  BALANCER_NETWORK_CONFIG,
+  Network,
+  Pool,
+  PoolsSubgraphRepository,
+} from '@/.';
+
+import { getOnChainBalances, getOnChainPools } from './onChainData';
+
 // yarn test:only ./src/modules/sor/pool-data/onChainData.spec.ts
 describe('getOnChainPools', async function () {
-  it('should fetch onchain pools', async function () {
-    const network = Network.POLYGON;
-    const rpcUrl = `https://polygon-mainnet.infura.io/v3/${process.env.INFURA}`;
-    const provider = new JsonRpcProvider(rpcUrl);
-    const url = BALANCER_NETWORK_CONFIG[network].urls.subgraph;
+  this.timeout(40000);
+  let pools: Pool[];
+  let provider: JsonRpcProvider;
+  const network = Network.POLYGON;
+  const url = BALANCER_NETWORK_CONFIG[network].urls.subgraph;
+  const rpcUrl = `https://polygon-mainnet.infura.io/v3/${process.env.INFURA}`;
+
+  before(async function () {
+    provider = new JsonRpcProvider(rpcUrl);
     const poolsRepo = new PoolsSubgraphRepository({
       url,
       chainId: network,
     });
-    const pools = await poolsRepo.all();
+    pools = await poolsRepo.all();
+  });
+
+  it('should fetch onchain pools using queries helper contract', async function () {
     const onChainPools = await getOnChainPools(
       cloneDeep(pools),
       BALANCER_NETWORK_CONFIG[network].addresses.contracts.poolDataQueries,
@@ -25,5 +39,15 @@ describe('getOnChainPools', async function () {
       provider
     );
     expect(onChainPools.length).to.be.gt(0);
-  }).timeout(40000);
+  });
+
+  it('should fetch onchain pools using multicall', async function () {
+    const onChainBalances = await getOnChainBalances(
+      cloneDeep(pools),
+      BALANCER_NETWORK_CONFIG[network].addresses.contracts.multicall,
+      BALANCER_NETWORK_CONFIG[network].addresses.contracts.vault,
+      provider
+    );
+    expect(onChainBalances.length).to.be.gt(0);
+  });
 });
diff --git a/balancer-js/src/modules/sor/pool-data/onChainData.ts b/balancer-js/src/modules/sor/pool-data/onChainData.ts
index 97d5d423c..d5b645cbe 100644
--- a/balancer-js/src/modules/sor/pool-data/onChainData.ts
+++ b/balancer-js/src/modules/sor/pool-data/onChainData.ts
@@ -9,6 +9,7 @@ import { formatFixed } from '@ethersproject/bignumber';
 import {
   ComposableStablePool__factory,
   ConvergentCurvePool__factory,
+  FXPool__factory,
   GyroEV2__factory,
   LinearPool__factory,
   Multicall__factory,
@@ -79,6 +80,7 @@ export async function getOnChainBalances<
         ...(LinearPool__factory.abi as readonly JsonFragment[]),
         ...(ComposableStablePool__factory.abi as readonly JsonFragment[]),
         ...(GyroEV2__factory.abi as readonly JsonFragment[]),
+        ...(FXPool__factory.abi as readonly JsonFragment[]),
       ].map((row) => [row.name, row])
     )
   );
@@ -183,6 +185,13 @@ export async function getOnChainBalances<
       case 'Element':
         multiPool.call(`${pool.id}.swapFee`, pool.address, 'percentFee');
         break;
+      case 'FX':
+        multiPool.call(
+          `${pool.id}.swapFee`,
+          pool.address,
+          'protocolPercentFee'
+        );
+        break;
       case 'Gyro2':
       case 'Gyro3':
         multiPool.call(`${pool.id}.poolTokens`, vaultAddress, 'getPoolTokens', [
@@ -333,8 +342,7 @@ export async function getOnChainBalances<
         );
       }
 
-      if (subgraphPools[index].poolType !== 'FX')
-        subgraphPools[index].swapFee = formatFixed(swapFee, 18);
+      subgraphPools[index].swapFee = formatFixed(swapFee, 18);
 
       poolTokens.tokens.forEach((token, i) => {
         const tokens = subgraphPools[index].tokens;