diff --git a/.gitignore b/.gitignore
index d0e47c9..8afbacb 100755
--- a/.gitignore
+++ b/.gitignore
@@ -2,4 +2,3 @@
 node_modules
 .npmrc
 *.log
-dist/
diff --git a/dist/abi.d.ts b/dist/abi.d.ts
new file mode 100644
index 0000000..57cff97
--- /dev/null
+++ b/dist/abi.d.ts
@@ -0,0 +1,5 @@
+import { ethers } from 'ethers';
+export declare class Abi {
+    static encode(name: string, inputs: ethers.utils.ParamType[], params: any[]): string;
+    static decode(outputs: ethers.utils.ParamType[], data: ethers.utils.BytesLike): ethers.utils.Result;
+}
diff --git a/dist/abi.js b/dist/abi.js
new file mode 100644
index 0000000..055b9e9
--- /dev/null
+++ b/dist/abi.js
@@ -0,0 +1,46 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.Abi = void 0;
+var ethers_1 = require("ethers");
+var Abi = /** @class */ (function () {
+    function Abi() {
+    }
+    Abi.encode = function (name, inputs, params) {
+        var functionSignature = getFunctionSignature(name, inputs);
+        var functionHash = ethers_1.ethers.utils.keccak256(ethers_1.ethers.utils.toUtf8Bytes(functionSignature));
+        var functionData = functionHash.substring(2, 10);
+        var abiCoder = new ethers_1.ethers.utils.AbiCoder();
+        var argumentString = abiCoder.encode(inputs, params);
+        var argumentData = argumentString.substring(2);
+        var inputData = "0x" + functionData + argumentData;
+        return inputData;
+    };
+    Abi.decode = function (outputs, data) {
+        var abiCoder = new ethers_1.ethers.utils.AbiCoder();
+        var params = abiCoder.decode(outputs, data);
+        return params;
+    };
+    return Abi;
+}());
+exports.Abi = Abi;
+function getFunctionSignature(name, inputs) {
+    var types = [];
+    for (var _i = 0, inputs_1 = inputs; _i < inputs_1.length; _i++) {
+        var input = inputs_1[_i];
+        if (input.type === 'tuple') {
+            var tupleString = getFunctionSignature('', input.components);
+            types.push(tupleString);
+            continue;
+        }
+        if (input.type === 'tuple[]') {
+            var tupleString = getFunctionSignature('', input.components);
+            var arrayString = tupleString + "[]";
+            types.push(arrayString);
+            continue;
+        }
+        types.push(input.type);
+    }
+    var typeString = types.join(',');
+    var functionSignature = name + "(" + typeString + ")";
+    return functionSignature;
+}
diff --git a/dist/abi/multicall.d.ts b/dist/abi/multicall.d.ts
new file mode 100644
index 0000000..b6c8335
--- /dev/null
+++ b/dist/abi/multicall.d.ts
@@ -0,0 +1,38 @@
+export declare const multicallAbi: ({
+    constant: boolean;
+    inputs: {
+        components: {
+            internalType: string;
+            name: string;
+            type: string;
+        }[];
+        internalType: string;
+        name: string;
+        type: string;
+    }[];
+    name: string;
+    outputs: {
+        internalType: string;
+        name: string;
+        type: string;
+    }[];
+    payable: boolean;
+    stateMutability: string;
+    type: string;
+} | {
+    constant: boolean;
+    inputs: {
+        internalType: string;
+        name: string;
+        type: string;
+    }[];
+    name: string;
+    outputs: {
+        internalType: string;
+        name: string;
+        type: string;
+    }[];
+    payable: boolean;
+    stateMutability: string;
+    type: string;
+})[];
diff --git a/dist/abi/multicall.js b/dist/abi/multicall.js
new file mode 100644
index 0000000..8354ecf
--- /dev/null
+++ b/dist/abi/multicall.js
@@ -0,0 +1,160 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.multicallAbi = void 0;
+exports.multicallAbi = [
+    {
+        constant: true,
+        inputs: [
+            {
+                components: [
+                    {
+                        internalType: 'address',
+                        name: 'target',
+                        type: 'address',
+                    },
+                    {
+                        internalType: 'bytes',
+                        name: 'callData',
+                        type: 'bytes',
+                    },
+                ],
+                internalType: 'struct Multicall.Call[]',
+                name: 'calls',
+                type: 'tuple[]',
+            },
+        ],
+        name: 'aggregate',
+        outputs: [
+            {
+                internalType: 'uint256',
+                name: 'blockNumber',
+                type: 'uint256',
+            },
+            {
+                internalType: 'bytes[]',
+                name: 'returnData',
+                type: 'bytes[]',
+            },
+        ],
+        payable: false,
+        stateMutability: 'view',
+        type: 'function',
+    },
+    {
+        constant: true,
+        inputs: [
+            {
+                internalType: 'uint256',
+                name: 'blockNumber',
+                type: 'uint256',
+            },
+        ],
+        name: 'getBlockHash',
+        outputs: [
+            {
+                internalType: 'bytes32',
+                name: 'blockHash',
+                type: 'bytes32',
+            },
+        ],
+        payable: false,
+        stateMutability: 'view',
+        type: 'function',
+    },
+    {
+        constant: true,
+        inputs: [],
+        name: 'getCurrentBlockCoinbase',
+        outputs: [
+            {
+                internalType: 'address',
+                name: 'coinbase',
+                type: 'address',
+            },
+        ],
+        payable: false,
+        stateMutability: 'view',
+        type: 'function',
+    },
+    {
+        constant: true,
+        inputs: [],
+        name: 'getCurrentBlockDifficulty',
+        outputs: [
+            {
+                internalType: 'uint256',
+                name: 'difficulty',
+                type: 'uint256',
+            },
+        ],
+        payable: false,
+        stateMutability: 'view',
+        type: 'function',
+    },
+    {
+        constant: true,
+        inputs: [],
+        name: 'getCurrentBlockGasLimit',
+        outputs: [
+            {
+                internalType: 'uint256',
+                name: 'gaslimit',
+                type: 'uint256',
+            },
+        ],
+        payable: false,
+        stateMutability: 'view',
+        type: 'function',
+    },
+    {
+        constant: true,
+        inputs: [],
+        name: 'getCurrentBlockTimestamp',
+        outputs: [
+            {
+                internalType: 'uint256',
+                name: 'timestamp',
+                type: 'uint256',
+            },
+        ],
+        payable: false,
+        stateMutability: 'view',
+        type: 'function',
+    },
+    {
+        constant: true,
+        inputs: [
+            {
+                internalType: 'address',
+                name: 'addr',
+                type: 'address',
+            },
+        ],
+        name: 'getEthBalance',
+        outputs: [
+            {
+                internalType: 'uint256',
+                name: 'balance',
+                type: 'uint256',
+            },
+        ],
+        payable: false,
+        stateMutability: 'view',
+        type: 'function',
+    },
+    {
+        constant: true,
+        inputs: [],
+        name: 'getLastBlockHash',
+        outputs: [
+            {
+                internalType: 'bytes32',
+                name: 'blockHash',
+                type: 'bytes32',
+            },
+        ],
+        payable: false,
+        stateMutability: 'view',
+        type: 'function',
+    },
+];
diff --git a/dist/call.d.ts b/dist/call.d.ts
new file mode 100644
index 0000000..6fe932f
--- /dev/null
+++ b/dist/call.d.ts
@@ -0,0 +1,3 @@
+import { ethers } from 'ethers';
+import { ContractCall } from './types';
+export declare function all<T extends any[] = any[]>(calls: ContractCall[], multicallAddress: string, provider: ethers.providers.Provider): Promise<T>;
diff --git a/dist/call.js b/dist/call.js
new file mode 100644
index 0000000..d95d29f
--- /dev/null
+++ b/dist/call.js
@@ -0,0 +1,74 @@
+"use strict";
+var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, generator) {
+    function adopt(value) { return value instanceof P ? value : new P(function (resolve) { resolve(value); }); }
+    return new (P || (P = Promise))(function (resolve, reject) {
+        function fulfilled(value) { try { step(generator.next(value)); } catch (e) { reject(e); } }
+        function rejected(value) { try { step(generator["throw"](value)); } catch (e) { reject(e); } }
+        function step(result) { result.done ? resolve(result.value) : adopt(result.value).then(fulfilled, rejected); }
+        step((generator = generator.apply(thisArg, _arguments || [])).next());
+    });
+};
+var __generator = (this && this.__generator) || function (thisArg, body) {
+    var _ = { label: 0, sent: function() { if (t[0] & 1) throw t[1]; return t[1]; }, trys: [], ops: [] }, f, y, t, g;
+    return g = { next: verb(0), "throw": verb(1), "return": verb(2) }, typeof Symbol === "function" && (g[Symbol.iterator] = function() { return this; }), g;
+    function verb(n) { return function (v) { return step([n, v]); }; }
+    function step(op) {
+        if (f) throw new TypeError("Generator is already executing.");
+        while (_) try {
+            if (f = 1, y && (t = op[0] & 2 ? y["return"] : op[0] ? y["throw"] || ((t = y["return"]) && t.call(y), 0) : y.next) && !(t = t.call(y, op[1])).done) return t;
+            if (y = 0, t) op = [op[0] & 2, t.value];
+            switch (op[0]) {
+                case 0: case 1: t = op; break;
+                case 4: _.label++; return { value: op[1], done: false };
+                case 5: _.label++; y = op[1]; op = [0]; continue;
+                case 7: op = _.ops.pop(); _.trys.pop(); continue;
+                default:
+                    if (!(t = _.trys, t = t.length > 0 && t[t.length - 1]) && (op[0] === 6 || op[0] === 2)) { _ = 0; continue; }
+                    if (op[0] === 3 && (!t || (op[1] > t[0] && op[1] < t[3]))) { _.label = op[1]; break; }
+                    if (op[0] === 6 && _.label < t[1]) { _.label = t[1]; t = op; break; }
+                    if (t && _.label < t[2]) { _.label = t[2]; _.ops.push(op); break; }
+                    if (t[2]) _.ops.pop();
+                    _.trys.pop(); continue;
+            }
+            op = body.call(thisArg, _);
+        } catch (e) { op = [6, e]; y = 0; } finally { f = t = 0; }
+        if (op[0] & 5) throw op[1]; return { value: op[0] ? op[1] : void 0, done: true };
+    }
+};
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.all = void 0;
+var ethers_1 = require("ethers");
+var abi_1 = require("./abi");
+var multicall_1 = require("./abi/multicall");
+function all(calls, multicallAddress, provider) {
+    return __awaiter(this, void 0, void 0, function () {
+        var multicall, callRequests, response, callCount, callResult, i, outputs, returnData, params, result;
+        return __generator(this, function (_a) {
+            switch (_a.label) {
+                case 0:
+                    multicall = new ethers_1.ethers.Contract(multicallAddress, multicall_1.multicallAbi, provider);
+                    callRequests = calls.map(function (call) {
+                        var callData = abi_1.Abi.encode(call.name, call.inputs, call.params);
+                        return {
+                            target: call.contract.address,
+                            callData: callData,
+                        };
+                    });
+                    return [4 /*yield*/, multicall.aggregate(callRequests)];
+                case 1:
+                    response = _a.sent();
+                    callCount = calls.length;
+                    callResult = [];
+                    for (i = 0; i < callCount; i++) {
+                        outputs = calls[i].outputs;
+                        returnData = response.returnData[i];
+                        params = abi_1.Abi.decode(outputs, returnData);
+                        result = outputs.length === 1 ? params[0] : params;
+                        callResult.push(result);
+                    }
+                    return [2 /*return*/, callResult];
+            }
+        });
+    });
+}
+exports.all = all;
diff --git a/dist/calls.d.ts b/dist/calls.d.ts
new file mode 100644
index 0000000..4d15438
--- /dev/null
+++ b/dist/calls.d.ts
@@ -0,0 +1 @@
+export declare function getEthBalance(address: string, multicallAddress: string): any;
diff --git a/dist/calls.js b/dist/calls.js
new file mode 100644
index 0000000..2b69959
--- /dev/null
+++ b/dist/calls.js
@@ -0,0 +1,10 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.getEthBalance = void 0;
+var multicall_1 = require("./abi/multicall");
+var contract_1 = require("./contract");
+function getEthBalance(address, multicallAddress) {
+    var multicall = new contract_1.Contract(multicallAddress, multicall_1.multicallAbi);
+    return multicall.getEthBalance(address);
+}
+exports.getEthBalance = getEthBalance;
diff --git a/dist/contract.d.ts b/dist/contract.d.ts
new file mode 100644
index 0000000..8621b6b
--- /dev/null
+++ b/dist/contract.d.ts
@@ -0,0 +1,11 @@
+import { Fragment, FunctionFragment, JsonFragment } from '@ethersproject/abi';
+export declare class Contract {
+    private _address;
+    private _abi;
+    private _functions;
+    get address(): string;
+    get abi(): Fragment[];
+    get functions(): FunctionFragment[];
+    constructor(address: string, abi: JsonFragment[] | string[] | Fragment[]);
+    [method: string]: any;
+}
diff --git a/dist/contract.js b/dist/contract.js
new file mode 100644
index 0000000..720f8dd
--- /dev/null
+++ b/dist/contract.js
@@ -0,0 +1,74 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.Contract = void 0;
+var abi_1 = require("@ethersproject/abi");
+var ethers_1 = require("ethers");
+var Contract = /** @class */ (function () {
+    function Contract(address, abi) {
+        this._address = address;
+        this._abi = toFragment(abi);
+        this._functions = this._abi.filter(function (x) { return x.type === 'function'; }).map(function (x) { return abi_1.FunctionFragment.from(x); });
+        var callFunctions = this._functions.filter(function (x) { return x.stateMutability === 'pure' || x.stateMutability === 'view'; });
+        for (var _i = 0, callFunctions_1 = callFunctions; _i < callFunctions_1.length; _i++) {
+            var callFunction = callFunctions_1[_i];
+            var name = callFunction.name;
+            var getCall = makeCallFunction(this, name);
+            if (!this[name]) {
+                defineReadOnly(this, name, getCall);
+            }
+        }
+    }
+    Object.defineProperty(Contract.prototype, "address", {
+        get: function () {
+            return this._address;
+        },
+        enumerable: false,
+        configurable: true
+    });
+    Object.defineProperty(Contract.prototype, "abi", {
+        get: function () {
+            return this._abi;
+        },
+        enumerable: false,
+        configurable: true
+    });
+    Object.defineProperty(Contract.prototype, "functions", {
+        get: function () {
+            return this._functions;
+        },
+        enumerable: false,
+        configurable: true
+    });
+    return Contract;
+}());
+exports.Contract = Contract;
+function toFragment(abi) {
+    return abi.map(function (item) { return ethers_1.utils.Fragment.from(item); });
+}
+function makeCallFunction(contract, name) {
+    return function () {
+        var params = [];
+        for (var _i = 0; _i < arguments.length; _i++) {
+            params[_i] = arguments[_i];
+        }
+        var address = contract.address;
+        var inputs = contract.functions.find(function (f) { return f.name === name; }).inputs;
+        var outputs = contract.functions.find(function (f) { return f.name === name; }).outputs;
+        return {
+            contract: {
+                address: address,
+            },
+            name: name,
+            inputs: inputs,
+            outputs: outputs,
+            params: params,
+        };
+    };
+}
+function defineReadOnly(object, name, value) {
+    Object.defineProperty(object, name, {
+        enumerable: true,
+        value: value,
+        writable: false,
+    });
+}
diff --git a/dist/index.d.ts b/dist/index.d.ts
new file mode 100644
index 0000000..baced07
--- /dev/null
+++ b/dist/index.d.ts
@@ -0,0 +1,10 @@
+import { Contract } from './contract';
+import { Provider, setMulticallAddress } from './provider';
+import { ContractCall } from './types';
+export { Contract, Provider, ContractCall, setMulticallAddress };
+declare const _default: {
+    Contract: typeof Contract;
+    Provider: typeof Provider;
+    setMulticallAddress: typeof setMulticallAddress;
+};
+export default _default;
diff --git a/dist/index.js b/dist/index.js
new file mode 100644
index 0000000..db053fd
--- /dev/null
+++ b/dist/index.js
@@ -0,0 +1,9 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.setMulticallAddress = exports.Provider = exports.Contract = void 0;
+var contract_1 = require("./contract");
+Object.defineProperty(exports, "Contract", { enumerable: true, get: function () { return contract_1.Contract; } });
+var provider_1 = require("./provider");
+Object.defineProperty(exports, "Provider", { enumerable: true, get: function () { return provider_1.Provider; } });
+Object.defineProperty(exports, "setMulticallAddress", { enumerable: true, get: function () { return provider_1.setMulticallAddress; } });
+exports.default = { Contract: contract_1.Contract, Provider: provider_1.Provider, setMulticallAddress: provider_1.setMulticallAddress };
diff --git a/dist/provider.d.ts b/dist/provider.d.ts
new file mode 100644
index 0000000..fecd60f
--- /dev/null
+++ b/dist/provider.d.ts
@@ -0,0 +1,11 @@
+import { ethers } from 'ethers';
+import { ContractCall } from './types';
+export declare class Provider {
+    private _provider;
+    private _multicallAddress;
+    constructor(provider: ethers.providers.Provider, chainId?: number);
+    init(): Promise<void>;
+    getEthBalance(address: string): any;
+    all<T extends any[] = any[]>(calls: ContractCall[]): Promise<T>;
+}
+export declare function setMulticallAddress(chainId: number, address: string): void;
diff --git a/dist/provider.js b/dist/provider.js
new file mode 100644
index 0000000..0acf4f9
--- /dev/null
+++ b/dist/provider.js
@@ -0,0 +1,121 @@
+"use strict";
+var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, generator) {
+    function adopt(value) { return value instanceof P ? value : new P(function (resolve) { resolve(value); }); }
+    return new (P || (P = Promise))(function (resolve, reject) {
+        function fulfilled(value) { try { step(generator.next(value)); } catch (e) { reject(e); } }
+        function rejected(value) { try { step(generator["throw"](value)); } catch (e) { reject(e); } }
+        function step(result) { result.done ? resolve(result.value) : adopt(result.value).then(fulfilled, rejected); }
+        step((generator = generator.apply(thisArg, _arguments || [])).next());
+    });
+};
+var __generator = (this && this.__generator) || function (thisArg, body) {
+    var _ = { label: 0, sent: function() { if (t[0] & 1) throw t[1]; return t[1]; }, trys: [], ops: [] }, f, y, t, g;
+    return g = { next: verb(0), "throw": verb(1), "return": verb(2) }, typeof Symbol === "function" && (g[Symbol.iterator] = function() { return this; }), g;
+    function verb(n) { return function (v) { return step([n, v]); }; }
+    function step(op) {
+        if (f) throw new TypeError("Generator is already executing.");
+        while (_) try {
+            if (f = 1, y && (t = op[0] & 2 ? y["return"] : op[0] ? y["throw"] || ((t = y["return"]) && t.call(y), 0) : y.next) && !(t = t.call(y, op[1])).done) return t;
+            if (y = 0, t) op = [op[0] & 2, t.value];
+            switch (op[0]) {
+                case 0: case 1: t = op; break;
+                case 4: _.label++; return { value: op[1], done: false };
+                case 5: _.label++; y = op[1]; op = [0]; continue;
+                case 7: op = _.ops.pop(); _.trys.pop(); continue;
+                default:
+                    if (!(t = _.trys, t = t.length > 0 && t[t.length - 1]) && (op[0] === 6 || op[0] === 2)) { _ = 0; continue; }
+                    if (op[0] === 3 && (!t || (op[1] > t[0] && op[1] < t[3]))) { _.label = op[1]; break; }
+                    if (op[0] === 6 && _.label < t[1]) { _.label = t[1]; t = op; break; }
+                    if (t && _.label < t[2]) { _.label = t[2]; _.ops.push(op); break; }
+                    if (t[2]) _.ops.pop();
+                    _.trys.pop(); continue;
+            }
+            op = body.call(thisArg, _);
+        } catch (e) { op = [6, e]; y = 0; } finally { f = t = 0; }
+        if (op[0] & 5) throw op[1]; return { value: op[0] ? op[1] : void 0, done: true };
+    }
+};
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.setMulticallAddress = exports.Provider = void 0;
+var call_1 = require("./call");
+var calls_1 = require("./calls");
+var Provider = /** @class */ (function () {
+    function Provider(provider, chainId) {
+        this._provider = provider;
+        this._multicallAddress = getAddressForChainId(chainId);
+    }
+    Provider.prototype.init = function () {
+        return __awaiter(this, void 0, void 0, function () {
+            var _a;
+            return __generator(this, function (_b) {
+                switch (_b.label) {
+                    case 0:
+                        // Only required if `chainId` was not provided in constructor
+                        _a = this;
+                        return [4 /*yield*/, getAddress(this._provider)];
+                    case 1:
+                        // Only required if `chainId` was not provided in constructor
+                        _a._multicallAddress = _b.sent();
+                        return [2 /*return*/];
+                }
+            });
+        });
+    };
+    Provider.prototype.getEthBalance = function (address) {
+        if (!this._provider) {
+            throw new Error('Provider should be initialized before use.');
+        }
+        return calls_1.getEthBalance(address, this._multicallAddress);
+    };
+    Provider.prototype.all = function (calls) {
+        return __awaiter(this, void 0, void 0, function () {
+            return __generator(this, function (_a) {
+                if (!this._provider) {
+                    throw new Error('Provider should be initialized before use.');
+                }
+                return [2 /*return*/, call_1.all(calls, this._multicallAddress, this._provider)];
+            });
+        });
+    };
+    return Provider;
+}());
+exports.Provider = Provider;
+var multicallAddresses = {
+    1: '0xeefba1e63905ef1d7acba5a8513c70307c1ce441',
+    3: '0xF24b01476a55d635118ca848fbc7Dab69d403be3',
+    4: '0x42ad527de7d4e9d9d011ac45b31d8551f8fe9821',
+    5: '0x77dca2c955b15e9de4dbbcf1246b4b85b651e50e',
+    42: '0x2cc8688c5f75e365aaeeb4ea8d6a480405a48d2a',
+    56: '0x1Ee38d535d541c55C9dae27B12edf090C608E6Fb',
+    66: '0x94fEadE0D3D832E4A05d459eBeA9350c6cDd3bCa',
+    97: '0x3A09ad1B8535F25b48e6Fa0CFd07dB6B017b31B2',
+    100: '0xb5b692a88bdfc81ca69dcb1d924f59f0413a602a',
+    128: '0x2C55D51804CF5b436BA5AF37bD7b8E5DB70EBf29',
+    137: '0x11ce4B23bD875D7F5C6a31084f55fDe1e9A87507',
+    250: '0x0118EF741097D0d3cc88e46233Da1e407d9ac139',
+    1285: '0x665D6802d22B7FE74cF8328eB384F575c8Be2302',
+    1337: '0x77dca2c955b15e9de4dbbcf1246b4b85b651e50e',
+    42161: '0x813715eF627B01f4931d8C6F8D2459F26E19137E',
+    43114: '0x7f3aC7C283d7E6662D886F494f7bc6F1993cDacf',
+    80001: '0x08411ADd0b5AA8ee47563b146743C13b3556c9Cc',
+};
+function setMulticallAddress(chainId, address) {
+    multicallAddresses[chainId] = address;
+}
+exports.setMulticallAddress = setMulticallAddress;
+function getAddressForChainId(chainId) {
+    return multicallAddresses[chainId];
+}
+function getAddress(provider) {
+    return __awaiter(this, void 0, void 0, function () {
+        var chainId;
+        return __generator(this, function (_a) {
+            switch (_a.label) {
+                case 0: return [4 /*yield*/, provider.getNetwork()];
+                case 1:
+                    chainId = (_a.sent()).chainId;
+                    return [2 /*return*/, getAddressForChainId(chainId)];
+            }
+        });
+    });
+}
diff --git a/dist/types.d.ts b/dist/types.d.ts
new file mode 100644
index 0000000..5a21633
--- /dev/null
+++ b/dist/types.d.ts
@@ -0,0 +1,10 @@
+import { ethers } from 'ethers';
+export interface ContractCall {
+    contract: {
+        address: string;
+    };
+    name: string;
+    inputs: ethers.utils.ParamType[];
+    outputs: ethers.utils.ParamType[];
+    params: any[];
+}
diff --git a/dist/types.js b/dist/types.js
new file mode 100644
index 0000000..c8ad2e5
--- /dev/null
+++ b/dist/types.js
@@ -0,0 +1,2 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
diff --git a/src/provider.ts b/src/provider.ts
index 2da8735..7edd1fe 100644
--- a/src/provider.ts
+++ b/src/provider.ts
@@ -45,6 +45,7 @@ const multicallAddresses = {
   128: '0x2C55D51804CF5b436BA5AF37bD7b8E5DB70EBf29',
   137: '0x11ce4B23bD875D7F5C6a31084f55fDe1e9A87507',
   250: '0x0118EF741097D0d3cc88e46233Da1e407d9ac139',
+  1285: '0x665D6802d22B7FE74cF8328eB384F575c8Be2302',
   1337: '0x77dca2c955b15e9de4dbbcf1246b4b85b651e50e',
   42161: '0x813715eF627B01f4931d8C6F8D2459F26E19137E',
   43114: '0x7f3aC7C283d7E6662D886F494f7bc6F1993cDacf',