diff --git a/bit-wallet/bit-send b/bit-wallet/bit-send
index c83f528..8dc858b 100755
--- a/bit-wallet/bit-send
+++ b/bit-wallet/bit-send
@@ -17,7 +17,12 @@ if (!args[0] || !args[1] || !args[2])
   program.help();
 
 var address = args[0];
-var amount = args[1];
+var amount;
+try {
+  amount = utils.parseAmount(args[1]);
+} catch (ex) {
+  utils.die(ex);
+}
 var message = args[2];
 
 var client = utils.getClient(program);
diff --git a/bit-wallet/cli-utils.js b/bit-wallet/cli-utils.js
index 46b0a33..237416d 100644
--- a/bit-wallet/cli-utils.js
+++ b/bit-wallet/cli-utils.js
@@ -1,4 +1,3 @@
-
 var _ = require('lodash');
 var Client = require('../lib/client');
 
@@ -12,14 +11,14 @@ var die = Utils.die = function(err) {
 };
 
 Utils.parseMN = function(MN) {
-  if (!MN) 
+  if (!MN)
     die('No m-n parameter');
   var mn = MN.split('-');
 
-  var m = parseInt(mn[0]); 
+  var m = parseInt(mn[0]);
   var n = parseInt(mn[1]);
 
-  if (!m || ! n) {
+  if (!m || !n) {
     die('Bad m-n parameter:' + MN);
   }
 
@@ -62,6 +61,33 @@ Utils.findOneTxProposal = function(txps, id) {
   return matches[0];
 };
 
+Utils.UNITS = {
+  'btc': 100000000,
+  'bit': 100,
+  'sat': 1,
+};
+
+Utils.parseAmount = function(text) {
+  if (!_.isString(text))
+    text = text.toString();
+
+  var regex = '^(\\d*(\\.\\d{0,8})?)\\s*(' + _.keys(Utils.UNITS).join('|') + ')?$';
+  var match = new RegExp(regex, 'i').exec(text.trim());
+
+  if (!match || match.length === 0) throw new Error('Invalid amount');
+
+  var amount = parseFloat(match[1]);
+  if (!_.isNumber(amount) || _.isNaN(amount)) throw new Error('Invalid amount');
+
+  var unit = (match[3] || 'sat').toLowerCase();
+  var rate = Utils.UNITS[unit];
+  if (!rate) throw new Error('Invalid unit')
+
+  var amountSat = parseFloat((amount * rate).toPrecision(12));
+  if (amountSat != Math.round(amountSat)) throw new Error('Invalid amount');
+
+  return amountSat;
+};
 
 
 module.exports = Utils;
diff --git a/bit-wallet/tests.js b/bit-wallet/tests.js
new file mode 100644
index 0000000..b2a90d4
--- /dev/null
+++ b/bit-wallet/tests.js
@@ -0,0 +1,67 @@
+'use strict';
+
+var _ = require('lodash');
+var chai = require('chai');
+var sinon = require('sinon');
+var should = chai.should();
+var CliUtils = require('./cli-utils');
+
+describe('CliUtils', function() {
+  describe('#parseAmount', function() {
+    it('should successfully parse amounts', function() {
+      var texts = {
+        '1': 1,
+        '0': 0,
+        '1.': 1,
+        '000000.0000': 0,
+        '123': 123,
+        '123sat': 123,
+        '123 sat': 123,
+        '00123 sat': 123,
+        '1.23bit': 123,
+        '1.23 bit': 123,
+        '0 bit': 0,
+        '.45bit': 45,
+        '1btc': 100000000,
+        '  1btc': 100000000,
+        '9999btc': 999900000000,
+        '0.00000001btc': 1,
+        '00000.00000001BTC': 1,
+        '0.00000001 BTC': 1,
+        '0.123btc': 12300000,
+        '0.123   bTc': 12300000,
+      };
+      _.each(texts, function(satoshi, text) {
+        var amount = CliUtils.parseAmount(text);
+        amount.should.equal(satoshi);
+      });
+    });
+    it('should fail to parse incorrect amounts', function() {
+      var texts = [
+        '',
+        '  ',
+        'btc',
+        '1satoshi',
+        'no-number',
+        '-3',
+        '1 b t c',
+        'btc1',
+        'btc 1',
+        '1,234',
+        '0.000000001btc',
+        '0.1sat',
+        '0.123bit',
+        '2.000000009btc',
+      ];
+      _.each(texts, function(text) {
+        var valid = true;
+        try {
+          var amount = CliUtils.parseAmount(text);
+        } catch (e) {
+          valid = false;
+        }
+        valid.should.be.false;
+      });
+    });
+  });
+});
diff --git a/lib/client/api.js b/lib/client/api.js
index f2674f6..31a195e 100644
--- a/lib/client/api.js
+++ b/lib/client/api.js
@@ -44,7 +44,10 @@ function _parseError(body) {
   var code = body.code || 'ERROR';
   var message = body.error || 'There was an unknown error processing the request';
   log.error(code, message);
-  return {message: message, code: code};
+  return {
+    message: message,
+    code: code
+  };
 };
 
 function _signRequest(method, url, args, privKey) {
@@ -61,7 +64,7 @@ function API(opts) {
   this.verbose = !!opts.verbose;
   this.request = request || opts.request;
   this.baseUrl = opts.baseUrl || BASE_URL;
-  this.basePath = this.baseUrl.replace(/http.?:\/\/[a-zA-Z0-9:-]*\//,'/'); 
+  this.basePath = this.baseUrl.replace(/http.?:\/\/[a-zA-Z0-9:-]*\//, '/');
   if (this.verbose) {
     log.level = 'debug';
   } else {
@@ -321,21 +324,17 @@ API.prototype.getStatus = function(cb) {
  * @param opts.message
  */
 API.prototype.sendTxProposal = function(opts, cb) {
+  $.checkArgument(opts);
+  $.shouldBeNumber(opts.amount);
+
   var self = this;
 
   this._loadAndCheck(function(err, data) {
     if (err) return cb(err);
 
-    var amount;
-    try {
-      amount = WalletUtils.parseAmount(opts.amount);
-    } catch (ex) {
-      return cb(ex);
-    }
-
     var args = {
       toAddress: opts.toAddress,
-      amount: amount,
+      amount: opts.amount,
       message: _encryptProposalMessage(opts.message, data.sharedEncryptingKey),
     };
     var hash = WalletUtils.getProposalHash(args.toAddress, args.amount, args.message);
@@ -450,9 +449,10 @@ API.prototype.getTxProposals = function(opts, cb) {
 };
 
 API.prototype.signTxProposal = function(txp, cb) {
-  var self = this;
   $.checkArgument(txp.creatorId);
 
+  var self = this;
+
   this._loadAndCheck(function(err, data) {
     if (err) return cb(err);
 
@@ -499,9 +499,10 @@ API.prototype.signTxProposal = function(txp, cb) {
 };
 
 API.prototype.rejectTxProposal = function(txp, reason, cb) {
-  var self = this;
   $.checkArgument(cb);
 
+  var self = this;
+
   this._loadAndCheck(
     function(err, data) {
       if (err) return cb(err);
diff --git a/lib/walletutils.js b/lib/walletutils.js
index 4ab8391..1a34077 100644
--- a/lib/walletutils.js
+++ b/lib/walletutils.js
@@ -105,33 +105,4 @@ WalletUtils.decryptMessage = function(cyphertextJson, encryptingKey) {
   return sjcl.decrypt(key, cyphertextJson);
 };
 
-
-WalletUtils.UNITS = {
-  'btc': 100000000,
-  'bit': 100,
-  'sat': 1,
-};
-
-WalletUtils.parseAmount = function(text) {
-  if (!_.isString(text))
-    text = text.toString();
-
-  var regex = '^(\\d*(\\.\\d{0,8})?)\\s*(' + _.keys(WalletUtils.UNITS).join('|') + ')?$';
-  var match = new RegExp(regex, 'i').exec(text.trim());
-
-  if (!match || match.length === 0) throw new Error('Invalid amount');
-
-  var amount = parseFloat(match[1]);
-  if (!_.isNumber(amount) || _.isNaN(amount)) throw new Error('Invalid amount');
-
-  var unit = (match[3] || 'sat').toLowerCase();
-  var rate = WalletUtils.UNITS[unit];
-  if (!rate) throw new Error('Invalid unit')
-
-  var amountSat = Utils.strip(amount * rate);
-  if (amountSat != Math.round(amountSat)) throw new Error('Invalid amount');
-
-  return amountSat;
-};
-
 module.exports = WalletUtils;
diff --git a/test/integration/clientApi.js b/test/integration/clientApi.js
index 1d4b53e..e086bd0 100644
--- a/test/integration/clientApi.js
+++ b/test/integration/clientApi.js
@@ -370,7 +370,7 @@ describe('client API ', function() {
           should.exist(x0.address);
           blockExplorerMock.setUtxo(x0, 1, 1);
           var opts = {
-            amount: '0.1btc',
+            amount: 10000000,
             toAddress: 'n2TBMPzPECGUfcT2EByiTJ12TPZkhN2mN5',
             message: 'hola 1-1',
           };
@@ -526,7 +526,7 @@ describe('client API ', function() {
     });
   });
 
-  describe('Transaction Troposals and Locked funds', function() {
+  describe('Transaction proposals and locked funds', function() {
     it('Should lock and release funds', function(done) {
       helpers.createAndJoinWallet(clients, 2, 2, function(err, w) {
         clients[0].createAddress(function(err, x0) {
@@ -535,7 +535,7 @@ describe('client API ', function() {
           blockExplorerMock.setUtxo(x0, 1, 2);
           blockExplorerMock.setUtxo(x0, 1, 2);
           var opts = {
-            amount: '1.2btc',
+            amount: 120000000,
             toAddress: 'n2TBMPzPECGUfcT2EByiTJ12TPZkhN2mN5',
             message: 'hola 1-1',
           };
diff --git a/test/walletutils.js b/test/walletutils.js
index 50e2082..192df87 100644
--- a/test/walletutils.js
+++ b/test/walletutils.js
@@ -74,63 +74,4 @@ describe('WalletUtils', function() {
       msg.should.equal('hello world');
     });
   });
-
-  describe('#parseAmount', function() {
-    it('should successfully parse amounts', function() {
-      var texts = {
-        '1': 1,
-        '0': 0,
-        '1.': 1,
-        '000000.0000': 0,
-        '123': 123,
-        '123sat': 123,
-        '123 sat': 123,
-        '00123 sat': 123,
-        '1.23bit': 123,
-        '1.23 bit': 123,
-        '0 bit': 0,
-        '.45bit': 45,
-        '1btc': 100000000,
-        '  1btc': 100000000,
-        '9999btc': 999900000000,
-        '0.00000001btc': 1,
-        '00000.00000001BTC': 1,
-        '0.00000001 BTC': 1,
-        '0.123btc': 12300000,
-        '0.123   bTc': 12300000,
-      };
-      _.each(texts, function(satoshi, text) {
-        var amount = WalletUtils.parseAmount(text);
-        amount.should.equal(satoshi);
-      });
-    });
-    it('should fail to parse incorrect amounts', function() {
-      var texts = [
-        '',
-        '  ',
-        'btc',
-        '1satoshi',
-        'no-number',
-        '-3',
-        '1 b t c',
-        'btc1',
-        'btc 1',
-        '1,234',
-        '0.000000001btc',
-        '0.1sat',
-        '0.123bit',
-        '2.000000009btc',
-      ];
-      _.each(texts, function(text) {
-        var valid = true;
-        try {
-          var amount = WalletUtils.parseAmount(text);
-        } catch (e) {
-          valid = false;
-        }
-        valid.should.be.false;
-      });
-    });
-  });
-
 });