diff --git a/lib/blockchainexplorer.js b/lib/blockchainexplorer.js
index a0f4072..428b9a9 100644
--- a/lib/blockchainexplorer.js
+++ b/lib/blockchainexplorer.js
@@ -30,7 +30,8 @@ function BlockChainExplorer(opts) {
       return new Insight({
         network: network,
         url: url,
-        apiPrefix: opts.apiPrefix
+        apiPrefix: opts.apiPrefix,
+        userAgent: opts.userAgent,
       });
     default:
       throw new Error('Provider ' + provider + ' not supported.');
diff --git a/lib/blockchainexplorers/insight.js b/lib/blockchainexplorers/insight.js
index bdc68b7..816f27d 100644
--- a/lib/blockchainexplorers/insight.js
+++ b/lib/blockchainexplorers/insight.js
@@ -15,6 +15,7 @@ function Insight(opts) {
   this.apiPrefix = opts.apiPrefix || '/api';
   this.network = opts.network || 'livenet';
   this.hosts = opts.url;
+  this.userAgent = opts.userAgent || 'bws';
 };
 
 
@@ -27,6 +28,16 @@ var _parseErr = function(err, res) {
   return "Error querying the blockchain";
 };
 
+Insight.prototype._doRequest = function(args, cb) {
+  var opts = {
+    hosts: this.hosts,
+    headers: {
+      'User-Agent': this.userAgent,
+    }
+  };
+  requestList(_.defaults(args, opts), cb);
+};
+
 Insight.prototype.getConnectionInfo = function() {
   return 'Insight (' + this.network + ') @ ' + this.hosts;
 };
@@ -38,14 +49,13 @@ Insight.prototype.getUtxos = function(addresses, cb) {
   var url = this.url + this.apiPrefix + '/addrs/utxo';
   var args = {
     method: 'POST',
-    hosts: this.hosts,
     path: this.apiPrefix + '/addrs/utxo',
     json: {
       addrs: [].concat(addresses).join(',')
     },
   };
 
-  requestList(args, function(err, res, unspent) {
+  this._doRequest(args, function(err, res, unspent) {
     if (err || res.statusCode !== 200) return cb(_parseErr(err, res));
     return cb(null, unspent);
   });
@@ -57,14 +67,13 @@ Insight.prototype.getUtxos = function(addresses, cb) {
 Insight.prototype.broadcast = function(rawTx, cb) {
   var args = {
     method: 'POST',
-    hosts: this.hosts,
     path: this.apiPrefix + '/tx/send',
     json: {
       rawtx: rawTx
     },
   };
 
-  requestList(args, function(err, res, body) {
+  this._doRequest(args, function(err, res, body) {
     if (err || res.statusCode !== 200) return cb(_parseErr(err, res));
     return cb(null, body ? body.txid : null);
   });
@@ -73,12 +82,11 @@ Insight.prototype.broadcast = function(rawTx, cb) {
 Insight.prototype.getTransaction = function(txid, cb) {
   var args = {
     method: 'GET',
-    hosts: this.hosts,
     path: this.apiPrefix + '/tx/' + txid,
     json: true,
   };
 
-  requestList(args, function(err, res, tx) {
+  this._doRequest(args, function(err, res, tx) {
     if (res && res.statusCode == 404) return cb();
     if (err || res.statusCode !== 200)
       return cb(_parseErr(err, res));
@@ -94,14 +102,13 @@ Insight.prototype.getTransactions = function(addresses, from, to, cb) {
 
   var args = {
     method: 'POST',
-    hosts: this.hosts,
     path: this.apiPrefix + '/addrs/txs' + (qs.length > 0 ? '?' + qs.join('&') : ''),
     json: {
       addrs: [].concat(addresses).join(',')
     },
   };
 
-  requestList(args, function(err, res, txs) {
+  this._doRequest(args, function(err, res, txs) {
     if (err || res.statusCode !== 200) return cb(_parseErr(err, res));
 
     if (_.isObject(txs) && txs.items)
@@ -119,12 +126,11 @@ Insight.prototype.getAddressActivity = function(address, cb) {
 
   var args = {
     method: 'GET',
-    hosts: this.hosts,
     path: self.apiPrefix + '/addr/' + address,
     json: true,
   };
 
-  requestList(args, function(err, res, result) {
+  this._doRequest(args, function(err, res, result) {
     if (res && res.statusCode == 404) return cb();
     if (err || res.statusCode !== 200)
       return cb(_parseErr(err, res));
@@ -142,11 +148,10 @@ Insight.prototype.estimateFee = function(nbBlocks, cb) {
 
   var args = {
     method: 'GET',
-    hosts: this.hosts,
     path: path,
     json: true,
   };
-  requestList(args, function(err, res, body) {
+  this._doRequest(args, function(err, res, body) {
     if (err || res.statusCode !== 200) return cb(_parseErr(err, res));
     return cb(null, body);
   });
diff --git a/lib/blockchainmonitor.js b/lib/blockchainmonitor.js
index 938830b..59e2901 100644
--- a/lib/blockchainmonitor.js
+++ b/lib/blockchainmonitor.js
@@ -13,6 +13,8 @@ var Lock = require('./lock');
 
 var Notification = require('./model/notification');
 
+var WalletService = require('./server');
+
 function BlockchainMonitor() {};
 
 BlockchainMonitor.prototype.start = function(opts, cb) {
@@ -36,6 +38,7 @@ BlockchainMonitor.prototype.start = function(opts, cb) {
             provider: config.provider,
             network: network,
             url: config.url,
+            userAgent: WalletService.getServiceVersion(),
           });
         }
         $.checkState(explorer);
diff --git a/lib/emailservice.js b/lib/emailservice.js
index bb4c5b0..34777f7 100644
--- a/lib/emailservice.js
+++ b/lib/emailservice.js
@@ -14,7 +14,6 @@ var Utils = require('./common/utils');
 var Storage = require('./storage');
 var MessageBroker = require('./messagebroker');
 var Lock = require('./lock');
-var BlockchainExplorer = require('./blockchainexplorer');
 
 var Model = require('./model');
 
@@ -99,27 +98,6 @@ EmailService.prototype.start = function(opts, cb) {
       self.lock = opts.lock || new Lock(opts.lockOpts);
       done();
     },
-    function(done) {
-      self.explorers = _.indexBy(_.map(['livenet', 'testnet'], function(network) {
-        var explorer;
-        if (opts.blockchainExplorers) {
-          explorer = opts.blockchainExplorers[network];
-        } else {
-          var config = {}
-          if (opts.blockchainExplorerOpts && opts.blockchainExplorerOpts[network]) {
-            config = opts.blockchainExplorerOpts[network];
-          }
-          var explorer = new BlockchainExplorer({
-            provider: config.provider,
-            network: network,
-            url: config.url,
-          });
-        }
-        $.checkState(explorer);
-        return explorer;
-      }), 'network');
-      done();
-    },
     function(done) {
       self.mailer = opts.mailer || nodemailer.createTransport(opts.emailOpts);
       done();
diff --git a/lib/server.js b/lib/server.js
index d07ec66..d172b05 100644
--- a/lib/server.js
+++ b/lib/server.js
@@ -864,6 +864,7 @@ WalletService.prototype._getBlockchainExplorer = function(network) {
     // TODO: provider should be configurable
     opts.provider = 'insight';
     opts.network = network;
+    opts.userAgent = WalletService.getServiceVersion();
     this.blockchainExplorer = new BlockchainExplorer(opts);
   }