diff --git a/ethereum.js b/ethereum.js
index ab0adbc..4d09000 100644
--- a/ethereum.js
+++ b/ethereum.js
@@ -1,5 +1,6 @@
 const { Web3 } = require('web3');
 const BigNumber = require('bignumber.js');
+const {Multicall} = require('ethereum-multicall');
 
 const ABI_CONTRACT_ACCOUNTING = [{"inputs":[{"internalType":"string","name":"field","type":"string"}],"name":"InvalidParam","type":"error"},{"inputs":[{"internalType":"string","name":"field","type":"string"}],"name":"InvalidValue","type":"error"},{"inputs":[{"internalType":"string","name":"field","type":"string"}],"name":"ZeroValue","type":"error"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"uint256","name":"round","type":"uint256"}],"name":"ActivateRound","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address","name":"staker","type":"address"},{"indexed":false,"internalType":"uint256","name":"value","type":"uint256"}],"name":"AddWithdrawRequest","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"uint256","name":"value","type":"uint256"}],"name":"Autocompound","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"int256","name":"","type":"int256"}],"name":"ChangeExpectValidatorsToStop","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"uint256","name":"value","type":"uint256"}],"name":"ClaimPoolFee","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address","name":"staker","type":"address"},{"indexed":false,"internalType":"uint256","name":"value","type":"uint256"}],"name":"ClaimWithdrawRequest","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address","name":"staker","type":"address"},{"indexed":false,"internalType":"uint256","name":"value","type":"uint256"}],"name":"DepositPending","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"uint256","name":"newFee","type":"uint256"}],"name":"FeeUpdated","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address","name":"oldGovernor","type":"address"},{"indexed":false,"internalType":"address","name":"newGovernor","type":"address"}],"name":"GovernorChanged","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"uint8","name":"version","type":"uint8"}],"name":"Initialized","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address","name":"staker","type":"address"},{"indexed":false,"internalType":"uint256","name":"value","type":"uint256"}],"name":"InterchangeDeposit","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address","name":"staker","type":"address"},{"indexed":false,"internalType":"uint256","name":"value","type":"uint256"}],"name":"InterchangeWithdraw","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"previousOwner","type":"address"},{"indexed":true,"internalType":"address","name":"newOwner","type":"address"}],"name":"OwnershipTransferred","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"superAdmin","type":"address"}],"name":"SetSuperAdmin","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"uint256","name":"rewarderBalance","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"reward","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"fee","type":"uint256"}],"name":"Update","type":"event"},{"inputs":[],"name":"BEACON_AMOUNT","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"FEE_DENOMINATOR","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"governor","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"owner","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"renounceOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"value","type":"address"}],"name":"setSuperAdmin","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"superAdmin","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"newOwner","type":"address"}],"name":"transferOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"poolFee","type":"uint256"},{"internalType":"address","name":"rewardsTreasury","type":"address"},{"internalType":"address","name":"withdrawTreasury","type":"address"},{"internalType":"address","name":"accountingGovernor","type":"address"}],"name":"initialize","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"account","type":"address"},{"internalType":"uint256","name":"depositToPendingValue","type":"uint256"}],"name":"deposit","outputs":[{"internalType":"uint256","name":"interchangedAmount","type":"uint256"},{"internalType":"uint256","name":"activatedSlots","type":"uint256"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"balance","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"pendingDepositedBalance","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"pendingBalance","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"account","type":"address"}],"name":"autocompoundBalanceOf","outputs":[{"internalType":"uint256","name":"autocompoundBalance","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"account","type":"address"}],"name":"depositedBalanceOf","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"account","type":"address"}],"name":"pendingDepositedBalanceOf","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"account","type":"address"}],"name":"pendingBalanceOf","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"account","type":"address"},{"internalType":"uint256","name":"amount","type":"uint256"}],"name":"withdrawPending","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"staker","type":"address"},{"internalType":"uint256","name":"value","type":"uint256"}],"name":"withdraw","outputs":[{"internalType":"uint256","name":"withdrawFromPendingAmount","type":"uint256"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"claimPoolFee","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"getPoolFee","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"feeBalance","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"update","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"feeValue","type":"uint256"}],"name":"setFee","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"autocompound","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"pendingRestakedRewards","outputs":[{"internalType":"uint256","name":"amount","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"account","type":"address"}],"name":"pendingRestakedRewardOf","outputs":[{"internalType":"uint256","name":"amount","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"account","type":"address"}],"name":"restakedRewardOf","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"withdrawRequestQueueParams","outputs":[{"internalType":"uint256","name":"","type":"uint256"},{"internalType":"uint256","name":"","type":"uint256"},{"internalType":"uint256","name":"","type":"uint256"},{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"staker","type":"address"}],"name":"withdrawRequest","outputs":[{"internalType":"uint256","name":"","type":"uint256"},{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"claimWithdrawRequest","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"readyforAutocompoundRewardsAmount","outputs":[{"internalType":"uint256","name":"unclaimedReward","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"closeValidatorsStat","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"stakeAmount","type":"uint256"}],"name":"setMinRestakeAmount","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"activatedValidatorNum","type":"uint256"}],"name":"activateValidators","outputs":[],"stateMutability":"nonpayable","type":"function"}];
 let ADDRESS_CONTRACT_ACCOUNTING = '0x7a7f0b3c23C23a31cFcb0c44709be70d4D545c6e';
@@ -10,6 +11,8 @@ let ADDRESS_CONTRACT_POOL = '0xD523794C879D9eC028960a231F866758e405bE34';
 let ADDRESS_CONTRACT_WITHDRAW_TREASURY = '0x19449f0f696703Aa3b1485DfA2d855F33659397a';
 let RPC_URL = 'https://mainnet.infura.io/v3/f583d4f04d384b9e8c59a7ff1c9f68f1';
 
+let MULTICALL_CONTRACT_ADDRESS = '0xca11bde05977b3631167028862be2a173976ca11'
+
 let web3 = new Web3(RPC_URL);
 let contract_accounting = new web3.eth.Contract(ABI_CONTRACT_ACCOUNTING, ADDRESS_CONTRACT_ACCOUNTING);
 let contract_pool = new web3.eth.Contract(ABI_CONTRACT_POOL, ADDRESS_CONTRACT_POOL);
@@ -238,6 +241,66 @@ async function closeValidatorsStat() {
     }
 }
 
+// poolBalances method returns object with aggregated balances using multicall contract
+async function poolBalances() {
+    const methods = [
+        'balance',
+        'pendingBalance',
+        'pendingDepositedBalance',
+        'pendingRestakedRewards',
+        'readyforAutocompoundRewardsAmount'
+    ]
+    const multicall = new Multicall({
+        multicallCustomContractAddress: MULTICALL_CONTRACT_ADDRESS,
+        web3Instance: web3,
+        tryAggregate: true
+    });
+    let contractCallContext = []
+    methods.forEach((method) => contractCallContext.push({
+        reference: method,
+        contractAddress: ADDRESS_CONTRACT_ACCOUNTING,
+        abi: ABI_CONTRACT_ACCOUNTING,
+        calls: [{reference: method, methodName: method}]
+
+    }));
+    const results = await multicall.call(contractCallContext);
+    let aggResult = {}
+    for (const [key, value] of Object.entries(results.results)) {
+        aggResult[key] = web3.utils.fromWei(value.callsReturnContext[0].returnValues[0].hex, 'ether')
+    }
+    return aggResult;
+}
+
+// userBalances method returns object with aggregated user balances using multicall contract
+async function userBalances(address) {
+    const methods = [
+        'pendingBalanceOf',
+        'pendingDepositedBalanceOf',
+        'pendingRestakedRewardOf',
+        'autocompoundBalanceOf',
+        'depositedBalanceOf',
+    ]
+    const multicall = new Multicall({
+        multicallCustomContractAddress: MULTICALL_CONTRACT_ADDRESS,
+        web3Instance: web3,
+        tryAggregate: true
+    });
+    let contractCallContext = []
+    methods.forEach((method) => contractCallContext.push({
+        reference: method,
+        contractAddress: ADDRESS_CONTRACT_ACCOUNTING,
+        abi: ABI_CONTRACT_ACCOUNTING,
+        calls: [{reference: method, methodName: method, methodParameters: [address]}]
+
+    }));
+    const results = await multicall.call(contractCallContext);
+    let aggResult = {}
+    for (const [key, value] of Object.entries(results.results)) {
+        aggResult[key] = web3.utils.fromWei(value.callsReturnContext[0].returnValues[0].hex, 'ether')
+    }
+    return aggResult;
+}
+
 // ===POOL===
 /** Stake funds into pool.
  * @param {string} address - Sender address.
@@ -487,6 +550,8 @@ module.exports = {
     withdrawRequest,
     claimWithdrawRequest,
     closeValidatorsStat,
+    aggregatedBalances,
+    aggregatedUserBalances,
 
     // pool
     stake,
diff --git a/package.json b/package.json
index 115f933..4cd6d74 100644
--- a/package.json
+++ b/package.json
@@ -41,6 +41,7 @@
     "bitcoinjs-lib": "^6.1.5",
     "bs58": "^5.0.0",
     "web3": "^4.14.0",
-    "btc-staking-ts": "^0.2.10"
+    "btc-staking-ts": "^0.2.10",
+    "ethereum-multicall": "^2.26.0"
   }
 }