diff --git a/dist/api/Address.js b/dist/api/Address.js
index e3020cc2..8e2a3016 100644
--- a/dist/api/Address.js
+++ b/dist/api/Address.js
@@ -1,8 +1,7 @@
 'use strict';Object.defineProperty(exports, "__esModule", { value: true });exports.Address = undefined;var _DataCollector = require('../lib/DataCollector');
 var _types = require('../lib/types');
 var _config = require('../lib/config');var _config2 = _interopRequireDefault(_config);function _interopRequireDefault(obj) {return obj && obj.__esModule ? obj : { default: obj };}
-const bridgeAddress = _config2.default.bridgeAddress;
-const remascAddress = _config2.default.remascAddress;
+const { bridgeAddress, remascAddress } = _config2.default;
 class Address extends _DataCollector.DataCollectorItem {
   constructor(collection, key, parent) {
     let sortable = { 'createdByTx.timestamp': -1 };
diff --git a/dist/api/Blocks.js b/dist/api/Blocks.js
index df558c8c..8f8802f2 100644
--- a/dist/api/Blocks.js
+++ b/dist/api/Blocks.js
@@ -71,9 +71,12 @@ class Blocks extends _DataCollector.DataCollector {
       this.events.emit('newBlocks', this.formatData({ blocks, transactions }));
     }
   }
+  async getAddress(address) {
+    return this.Address.run('getAddress', { address });
+  }
 
   async addAddressData(address, data, key = '_addressData') {
-    const account = await this.Address.run('getAddress', { address });
+    const account = await this.getAddress(address);
     if (data && data.data && account) data.data[key] = account.data;
     return data || account;
   }}exports.default =
diff --git a/dist/api/Event.js b/dist/api/Event.js
index 73b55031..0befcfe7 100644
--- a/dist/api/Event.js
+++ b/dist/api/Event.js
@@ -1,13 +1,15 @@
 'use strict';Object.defineProperty(exports, "__esModule", { value: true });exports.Event = undefined;var _DataCollector = require('../lib/DataCollector');
+var _config = require('../lib/config');var _config2 = _interopRequireDefault(_config);function _interopRequireDefault(obj) {return obj && obj.__esModule ? obj : { default: obj };}
+const { remascAddress, bridgeAddress } = _config2.default;
 class Event extends _DataCollector.DataCollectorItem {
   constructor(collection, key, parent) {
-    const sortable = { timestamp: -1 };
-    super(collection, key, parent, { sortable });
+    // const sortable = { timestamp: -1 }
+    super(collection, key, parent);
     this.publicActions = {
 
       getEvent: async params => {
         try {
-          const _id = params._id;
+          const { _id } = params;
           let data = await this.getOne({ _id });
           if (!data) throw new Error(`Event ${_id} does not exist`);
           const address = data.data.address;
@@ -19,8 +21,42 @@ class Event extends _DataCollector.DataCollectorItem {
       },
 
       getEventsByAddress: async params => {
-        const address = params.address;
-        if (address) return this.getPageData({ address }, params);
+        const { address, signatures, contract } = params;
+        if (address) {
+          let query = { args: address
+
+            // search by events signatures
+          };if (Array.isArray(signatures)) {
+            // skip remasc & bridge events
+            if (address !== remascAddress && address !== bridgeAddress) {
+              query.signature = { $in: signatures };
+            }
+          }
+
+          if (contract) query.address = contract;
+
+          let res = await this.getPageData(query, params);
+          if (res.data) {
+            let addresses = new Set(res.data.map(d => d.address));
+            addresses = [...addresses.values()];
+            let addrData = await this.parent.Address.find({ address: { $in: addresses } });
+            let { data } = addrData;
+            if (data) {
+              res.data = res.data.map(d => {
+                d._addressData = data.find(a => a.address === d.address);
+                return d;
+              });
+            }
+          }
+          return res;
+        }
+      },
+
+      getAllEventsByAddress: async params => {
+        const { address } = params;
+        if (address) {
+          return this.getPageData({ $or: [{ address }, { args: address }] }, params);
+        }
       } };
 
   }}exports.Event = Event;exports.default =
diff --git a/dist/api/TokenAccount.js b/dist/api/TokenAccount.js
index 172094cc..69ed582e 100644
--- a/dist/api/TokenAccount.js
+++ b/dist/api/TokenAccount.js
@@ -1,4 +1,6 @@
 'use strict';Object.defineProperty(exports, "__esModule", { value: true });exports.TokenAccount = undefined;var _DataCollector = require('../lib/DataCollector');
+var _utils = require('../lib/utils');
+var _bignumber = require('bignumber.js');
 
 class TokenAccount extends _DataCollector.DataCollectorItem {
   constructor(collection, key, parent) {
@@ -36,6 +38,25 @@ class TokenAccount extends _DataCollector.DataCollectorItem {
         const { address, contract } = params;
         const account = await this.getOne({ address, contract });
         return this.parent.addAddressData(contract, account, '_contractData');
+      },
+
+      getTokenBalance: async params => {
+        const { contract } = params;
+        let contractData = await this.parent.getAddress(contract);
+        contractData = contractData.data;
+        if (!contractData) return;
+        let { totalSupply } = contractData;
+        if (!totalSupply) return;
+        let accounts = await this.find({ contract });
+        if (accounts) accounts = accounts.data;
+        if (!accounts) return;
+
+        let accountsBalance = (0, _utils.bigNumberSum)(accounts.map(account => account.balance));
+        totalSupply = new _bignumber.BigNumber(totalSupply);
+        let balance = accountsBalance ? totalSupply.minus(accountsBalance) : totalSupply;
+
+        const data = this.serialize({ balance, accountsBalance, totalSupply });
+        return { data };
       } };
 
   }}exports.TokenAccount = TokenAccount;exports.default =
diff --git a/dist/lib/ContractParser/ContractParser.js b/dist/lib/ContractParser/ContractParser.js
index 4466c173..e16a59db 100644
--- a/dist/lib/ContractParser/ContractParser.js
+++ b/dist/lib/ContractParser/ContractParser.js
@@ -4,7 +4,8 @@ var _web3Connect = require('../web3Connect');
 var _types = require('../types');
 var _interfacesIds = require('./interfacesIds');var _interfacesIds2 = _interopRequireDefault(_interfacesIds);
 var _utils = require('../../lib/utils');
-
+var _config = require('../config');var _config2 = _interopRequireDefault(_config);
+var _RemascEvents = require('./RemascEvents');var _RemascEvents2 = _interopRequireDefault(_RemascEvents);
 var _lib = require('./lib');function _interopRequireDefault(obj) {return obj && obj.__esModule ? obj : { default: obj };}
 
 
@@ -14,6 +15,8 @@ var _lib = require('./lib');function _interopRequireDefault(obj) {return obj &&
 
 
 
+
+const { remascAddress } = _config2.default;
 class ContractParser {
   constructor(abi, options = {}) {
     this.abi = null;
@@ -55,6 +58,9 @@ class ContractParser {
 
   parseTxLogs(logs) {
     return logs.map(log => {
+      // non-standard remasc events
+      if (log.address === remascAddress) return _RemascEvents2.default.decode(log);
+
       let back = Object.assign({}, log);
       let decoder = this.getLogDecoder(log.topics || []);
       let decoded = decoder ? decoder.event.decode(log) : log;
@@ -152,7 +158,7 @@ class ContractParser {
     let methods = this.getMethodsBySelectors(txInputData);
     let isErc165 = false;
     //  skip non-erc165 conrtacts
-    if ((0, _utils.hasValues)(methods, ['supportsInterface(bytes4)'])) {
+    if ((0, _utils.includesAll)(methods, ['supportsInterface(bytes4)'])) {
       isErc165 = await this.implementsErc165(contract);
     }
     let interfaces;
@@ -176,7 +182,7 @@ class ContractParser {
   getInterfacesByMethods(methods, isErc165) {
     return Object.keys(_interfacesIds2.default).
     map(i => {
-      return [i, (0, _utils.hasValues)(methods, _interfacesIds2.default[i].methods)];
+      return [i, (0, _utils.includesAll)(methods, _interfacesIds2.default[i].methods)];
     }).
     reduce((obj, value) => {
       obj[value[0]] = value[1];
diff --git a/dist/lib/ContractParser/RemascEvents.js b/dist/lib/ContractParser/RemascEvents.js
new file mode 100644
index 00000000..2c75dd23
--- /dev/null
+++ b/dist/lib/ContractParser/RemascEvents.js
@@ -0,0 +1,56 @@
+'use strict';Object.defineProperty(exports, "__esModule", { value: true });exports.RemascEvents = undefined;var _rlp = require('rlp');var rlp = _interopRequireWildcard(_rlp);function _interopRequireWildcard(obj) {if (obj && obj.__esModule) {return obj;} else {var newObj = {};if (obj != null) {for (var key in obj) {if (Object.prototype.hasOwnProperty.call(obj, key)) newObj[key] = obj[key];}}newObj.default = obj;return newObj;}}
+
+class RemascEvents {
+  decode(log) {
+    let event = this.decodeEventName(log.topics[0]);
+    // at the moment remasc emits only one event
+    if (event === 'mining_fee_topic') {
+      let [blockHash, value] = this.decodeData(log.data);
+      let to = this.decodeAddress(log.topics[1]);
+      log.event = event;
+      log.args = [to, blockHash, value];
+      log.abi = this.fakeAbi();
+    }
+    return log;
+  }
+
+  decodeEventName(name) {
+    name = name.slice(0, 2) === '0x' ? name.slice(2, name.length) : name;
+    return Buffer.from(name, 'hex').toString('ascii').replace(/\0/g, '');
+  }
+
+  decodeData(data) {
+    return rlp.decode(data).map(d => '0x' + d.toString('hex').replace(/^0+/, ''));
+  }
+
+  decodeAddress(address) {
+    return '0x' + address.slice(-40);
+  }
+  fakeAbi() {
+    return {
+      anonymous: false,
+      inputs: [
+      {
+        indexed: true,
+        name: 'to',
+        type: 'address' },
+
+      {
+        indexed: false,
+        name: 'blockHash',
+        type: 'address' },
+
+      {
+        indexed: false,
+        name: 'value',
+        type: 'uint256' }],
+
+
+      name: 'mining_fee_topic',
+      type: 'event' };
+
+  }}exports.RemascEvents = RemascEvents;
+
+
+const remascEvents = new RemascEvents();exports.default =
+remascEvents;
\ No newline at end of file
diff --git a/dist/lib/collections.js b/dist/lib/collections.js
index b4450c48..52cc34aa 100644
--- a/dist/lib/collections.js
+++ b/dist/lib/collections.js
@@ -105,7 +105,15 @@
 
   {
     key: { blockNumber: 1 },
-    name: 'eventBlockNumberIndex' }],
+    name: 'eventBlockNumberIndex' },
+
+  {
+    key: { args: 1 },
+    name: 'eventsArgsIndex' },
+
+  {
+    key: { signature: 1 },
+    name: 'eventSignatureIndex' }],
 
 
   TokensAddrs: [
diff --git a/dist/lib/utils.js b/dist/lib/utils.js
index 97b4f523..4d03b151 100644
--- a/dist/lib/utils.js
+++ b/dist/lib/utils.js
@@ -1,4 +1,4 @@
-'use strict';Object.defineProperty(exports, "__esModule", { value: true });exports.jsonDecode = exports.jsonEncode = exports.keccak256 = exports.base64toHex = exports.btoa = exports.atob = exports.hasValues = exports.hasValue = exports.arraySymmetricDifference = exports.arrayDifference = exports.arrayIntersection = exports.getBestBlock = exports.blockQuery = exports.isBlockHash = exports.checkBlockHash = exports.serialize = exports.bigNumberToSring = exports.unSerializeBigNumber = exports.isSerializedBigNumber = exports.serializeBigNumber = exports.isBigNumber = exports.bigNumberDoc = exports.isValidAddress = exports.isAddress = exports.remove0x = exports.add0x = exports.isHexString = undefined;var _bignumber = require('bignumber.js');
+'use strict';Object.defineProperty(exports, "__esModule", { value: true });exports.jsonDecode = exports.jsonEncode = exports.keccak256 = exports.base64toHex = exports.btoa = exports.atob = exports.includesAll = exports.hasValue = exports.arraySymmetricDifference = exports.arrayDifference = exports.arrayIntersection = exports.getBestBlock = exports.blockQuery = exports.isBlockHash = exports.checkBlockHash = exports.serialize = exports.bigNumberSum = exports.bigNumberToSring = exports.unSerializeBigNumber = exports.isSerializedBigNumber = exports.serializeBigNumber = exports.isBigNumber = exports.bigNumberDoc = exports.isValidAddress = exports.isAddress = exports.remove0x = exports.add0x = exports.isHexString = undefined;var _bignumber = require('bignumber.js');
 var _types = require('./types');
 var _mongodb = require('mongodb');
 var _keccak = require('keccak');var _keccak2 = _interopRequireDefault(_keccak);function _interopRequireDefault(obj) {return obj && obj.__esModule ? obj : { default: obj };}
@@ -8,9 +8,25 @@ const isHexString = exports.isHexString = str => {
   return (/^[0-9a-f]+$/i.test(str));
 };
 
-const add0x = exports.add0x = str => isHexString(str) && str.substring(0, 2) !== '0x' ? `0x${str}` : str;
+const add0x = exports.add0x = str => {
+  let s = str;
+  let prefix = s[0] === '-' ? '-' : '';
+  if (prefix) s = s.substring(prefix.length);
+  if (isHexString(s) && s.substring(0, 2) !== '0x') {
+    return `${prefix}0x${s}`;
+  }
+  return str;
+};
 
-const remove0x = exports.remove0x = str => isHexString(str) && str.substring(0, 2) === '0x' ? str.substr(2, str.length) : str;
+const remove0x = exports.remove0x = str => {
+  let s = str;
+  let prefix = s[0] === '-' ? '-' : '';
+  if (prefix) s = s.substring(prefix.length);
+  if (isHexString(s)) {
+    if (s.substring(0, 2) === '0x') return prefix + s.substr(2);
+  }
+  return str;
+};
 
 const isAddress = exports.isAddress = address => {
   return (/^(0x)?[0-9a-f]{40}$/i.test(address));
@@ -50,6 +66,16 @@ const bigNumberToSring = exports.bigNumberToSring = bn => {
   return bn;
 };
 
+const bigNumberSum = exports.bigNumberSum = values => {
+  let total = new _bignumber.BigNumber(0);
+  values.
+  forEach(value => {
+    value = isBigNumber(value) ? value : new _bignumber.BigNumber(value);
+    total = total.plus(value);
+  });
+  return total;
+};
+
 const isObj = value => {
   if (undefined === value || value === null) return false;
   let is = typeof value === 'object';
@@ -117,7 +143,7 @@ const arraySymmetricDifference = exports.arraySymmetricDifference = (a, b) => ar
 
 const hasValue = exports.hasValue = (arr, search) => arrayIntersection(arr, search).length > 0;
 
-const hasValues = exports.hasValues = (arr, search) => !search.map(t => arr.indexOf(t)).filter(i => i < 0).length;
+const includesAll = exports.includesAll = (arr, search) => !search.map(t => arr.indexOf(t)).filter(i => i < 0).length;
 
 const atob = exports.atob = str => Buffer.from(str, 'base64').toString('binary');
 
diff --git a/dist/services/classes/GetTxBalance.js b/dist/services/classes/GetTxBalance.js
index b3dda0e8..70dc69b3 100644
--- a/dist/services/classes/GetTxBalance.js
+++ b/dist/services/classes/GetTxBalance.js
@@ -1,4 +1,4 @@
-'use strict';Object.defineProperty(exports, "__esModule", { value: true });exports.GetTxBalance = undefined;var _bignumber = require('bignumber.js');
+'use strict';Object.defineProperty(exports, "__esModule", { value: true });exports.GetTxBalance = undefined;var _utils = require('../../lib/utils');
 class GetTxBalance {
   constructor(txCollection) {
     this.txCollection = txCollection;
@@ -13,13 +13,7 @@ class GetTxBalance {
   }
 
   sumValues(values) {
-    let total = new _bignumber.BigNumber(0);
-    values.
-    map(v => v.value).
-    forEach(value => {
-      total = total.plus(new _bignumber.BigNumber(value));
-    });
-    return total;
+    return (0, _utils.bigNumberSum)(values.map(v => v.value));
   }
 
   async getBalanceFromTx(address) {
diff --git a/dist/tools/wsGet.js b/dist/tools/wsGet.js
index da787535..cf07b381 100644
--- a/dist/tools/wsGet.js
+++ b/dist/tools/wsGet.js
@@ -7,7 +7,7 @@ const writeFile = _util2.default.promisify(_fs2.default.writeFile);
 const url = process.env.url || 'http://localhost:3003';
 const outDir = process.env.outDir || '/tmp';
 
-let payload = process.env.payload;
+let payload = process.env.payload || process.argv[2];
 
 if (!url || !payload) help();
 payload = JSON.parse(payload);
@@ -35,8 +35,10 @@ socket.on('disconnect', socket => {
 socket.on('data', async res => {
   try {
     let { data, error, req } = res;
-
-    if (error) throw new Error(error);
+    if (error) {
+      c.error(error);
+      process.exit();
+    }
     if (!error && req && key === req.key) {
       // multiple results
       if (res.pages) {
@@ -70,8 +72,9 @@ socket.on('data', async res => {
 });
 
 socket.on('Error', err => {
-  c.error('ERROR:');
-  c.error(err);
+  let error = err.error || '';
+  c.error(`ERROR: ${error}`);
+  c.warn(err);
 });
 
 process.on('unhandledRejection', err => {
diff --git a/package-lock.json b/package-lock.json
index 0b67367e..451fb60a 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,6 +1,6 @@
 {
   "name": "rsk-explorer-api",
-  "version": "0.7.1",
+  "version": "0.7.2",
   "lockfileVersion": 1,
   "requires": true,
   "dependencies": {
diff --git a/package.json b/package.json
index 7932b361..b7d5d6d3 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "rsk-explorer-api",
-  "version": "0.7.1",
+  "version": "0.7.2",
   "description": "",
   "main": "index.js",
   "scripts": {