diff --git a/api/test/data/blocks.js b/api/test/data/blocks.js
index f17bd05d..f43d8d67 100644
--- a/api/test/data/blocks.js
+++ b/api/test/data/blocks.js
@@ -3,17 +3,6 @@
 var bitcore = require('bitcore');
 var Block = bitcore.Block;
 
-Object.values = function(obj) {
-  var vals = [];
-  for (var key in obj) {
-    if (obj.hasOwnProperty(key)) {
-      vals.push(obj[key]);
-    }
-  }
-  return vals;
-};
-
-
 var mockBlocks = {};
 var blockHexs = require('./blocks.json');
 blockHexs.map(function(hex) {
diff --git a/api/test/data/transactions.js b/api/test/data/transactions.js
index 52cfbf09..aa95b4e3 100644
--- a/api/test/data/transactions.js
+++ b/api/test/data/transactions.js
@@ -1,10 +1,11 @@
 'use strict';
 
 var bitcore = require('bitcore');
+var _ = bitcore.deps._;
 
 var mockTransactions = {};
 var blocks = require('./blocks');
-Object.values(blocks).forEach(function(block) {
+_.each(blocks, function(block) {
   block.transactions.forEach(function(tx) {
     mockTransactions[tx.id] = tx;
   });
diff --git a/api/test/v1/addresses.js b/api/test/v1/addresses.js
index 256bcbcd..ae2793f1 100644
--- a/api/test/v1/addresses.js
+++ b/api/test/v1/addresses.js
@@ -18,7 +18,7 @@ var mockTransactions = require('../data/transactions');
 describe('BitcoreHTTP v1 addresses routes', function() {
 
   // mocks
-  var transactionList = Object.values(mockTransactions);
+  var transactionList = _.values(mockTransactions);
   var nodeMock, app, agent;
   var txs_for_addr = function(addr) {
     var amount = mockAddresses[addr].summary.transactions.length;
@@ -74,7 +74,7 @@ describe('BitcoreHTTP v1 addresses routes', function() {
     it('fails with invalid address', function(cb) {
       failsWithInvalidAddress(agent, '/v1/addresses/1BpbpfLdY7oBS9gK7aDXgvMgr1DpvNH3B2', cb);
     });
-    Object.keys(mockAddresses).forEach(function(addr) {
+    _.keys(mockAddresses).forEach(function(addr) {
       var info = mockAddresses[addr];
       it('works with valid address ' + addr, function(cb) {
         agent.get('/v1/addresses/' + addr)
@@ -87,7 +87,7 @@ describe('BitcoreHTTP v1 addresses routes', function() {
     it('fails with invalid address', function(cb) {
       failsWithInvalidAddress(agent, '/v1/addresses/1BpbpfLdY7oBS9gK7aDXgvMgr1DpvNH3B2/transactions', cb);
     });
-    Object.keys(mockAddresses).forEach(function(addr) {
+    _.keys(mockAddresses).forEach(function(addr) {
       it('works with valid address ' + addr, function(cb) {
         agent.get('/v1/addresses/' + addr + '/transactions')
           .expect(200)
@@ -102,7 +102,7 @@ describe('BitcoreHTTP v1 addresses routes', function() {
         .expect('/v1/addresses/ parameter must be a bitcoin address list', cb);
 
     });
-    Object.keys(mockAddresses).forEach(function(addr) {
+    _.keys(mockAddresses).forEach(function(addr) {
       it('works with valid address ' + addr, function(cb) {
         agent.get('/v1/addresses/' + addr + '/utxos')
           .expect(200)
@@ -111,7 +111,7 @@ describe('BitcoreHTTP v1 addresses routes', function() {
     });
   });
   describe('/addresses/:addresses/utxos', function() {
-    powerset(Object.keys(mockAddresses)).forEach(function(addresses) {
+    powerset(_.keys(mockAddresses)).forEach(function(addresses) {
       if (addresses.length === 0) {
         return;
       }
diff --git a/api/test/v1/blocks.js b/api/test/v1/blocks.js
index f210ba51..b25acfa7 100644
--- a/api/test/v1/blocks.js
+++ b/api/test/v1/blocks.js
@@ -17,24 +17,24 @@ var mockBlocks = require('../data/blocks');
 describe('BitcoreHTTP v1 blocks routes', function() {
 
   // mocks
-  var b1 = mockBlocks[Object.keys(mockBlocks)[0]];
-  var firstBlock = mockBlocks[Object.keys(mockBlocks).splice(0, 1)[0]];
-  var secondBlock = mockBlocks[Object.keys(mockBlocks).splice(1, 1)[0]];
-  var lastBlock = mockBlocks[Object.keys(mockBlocks).splice(-1)[0]];
+  var b1 = mockBlocks[_.keys(mockBlocks)[0]];
+  var firstBlock = mockBlocks[_.keys(mockBlocks).splice(0, 1)[0]];
+  var secondBlock = mockBlocks[_.keys(mockBlocks).splice(1, 1)[0]];
+  var lastBlock = mockBlocks[_.keys(mockBlocks).splice(-1)[0]];
   var blockForHash = function(hash) {
     return mockBlocks[hash];
   };
-  var last3 = Object.keys(mockBlocks).splice(-3).map(blockForHash);
-  var some2 = Object.keys(mockBlocks).splice(2,2).map(blockForHash);
+  var last3 = _.keys(mockBlocks).splice(-3).map(blockForHash);
+  var some2 = _.keys(mockBlocks).splice(2,2).map(blockForHash);
   var nodeMock, app, agent;
-  var blockList = Object.values(mockBlocks);
+  var blockList = _.values(mockBlocks);
   beforeEach(function() {
     nodeMock = new EventEmitter();
     nodeMock.getBlock = function(blockHash) {
       var block;
       if (typeof blockHash === 'number') {
         var height = blockHash;
-        block = mockBlocks[Object.keys(mockBlocks)[height - 100000]];
+        block = mockBlocks[_.keys(mockBlocks)[height - 100000]];
       } else {
         block = mockBlocks[blockHash];
       }
@@ -107,7 +107,7 @@ describe('BitcoreHTTP v1 blocks routes', function() {
         .expect(404)
         .expect('Block with id 000000000019d6689c085ae165831e934ff763ae46a2a6c172b3f1b600000000 not found', cb);
     });
-    Object.keys(mockBlocks).forEach(function(hash) {
+    _.keys(mockBlocks).forEach(function(hash) {
       var block = mockBlocks[hash];
       it('works with valid blockHash ...' + hash.substring(hash.length - 8), function(cb) {
         agent.get('/v1/blocks/' + hash)
diff --git a/api/test/v1/transactions.js b/api/test/v1/transactions.js
index f41ba12d..287573f3 100644
--- a/api/test/v1/transactions.js
+++ b/api/test/v1/transactions.js
@@ -19,7 +19,7 @@ describe('BitcoreHTTP v1 transactions routes', function() {
 
   // mocks
   var mockValidTx = new Transaction();
-  var t1 = mockTransactions[Object.keys(mockTransactions)[0]];
+  var t1 = mockTransactions[_.keys(mockTransactions)[0]];
   var nodeMock, app, agent;
   beforeEach(function() {
     nodeMock = new EventEmitter();
@@ -58,7 +58,7 @@ describe('BitcoreHTTP v1 transactions routes', function() {
     it('returns 404 with non existent transaction', function(cb) {
       reportsNotFound(agent, '/v1/transactions/000000000019d6689c085ae165831e934ff763ae46a2a6c172b3f1b600000000', cb);
     });
-    Object.keys(mockTransactions).forEach(function(hash) {
+    _.keys(mockTransactions).forEach(function(hash) {
       it('works with valid txHash ...' + hash.substring(hash.length - 8), function(cb) {
         agent.get('/v1/transactions/' + hash)
           .expect(200)
@@ -115,7 +115,7 @@ describe('BitcoreHTTP v1 transactions routes', function() {
         reportsNotFound(agent,
           '/v1/transactions/000000000019d6689c085ae165831e934ff763ae46a2a6c172b3f1b600000000/' + name, cb);
       });
-      Object.keys(mockTransactions).forEach(function(hash) {
+      _.keys(mockTransactions).forEach(function(hash) {
         var tx = mockTransactions[hash];
         var summary = hash.substring(hash.length - 8);
         it('works with valid txHash ...' + summary + 'getting all ' + name, function(cb) {