diff --git a/.gitignore b/.gitignore
index d87d4be..223f6f8 100644
--- a/.gitignore
+++ b/.gitignore
@@ -15,3 +15,18 @@ spec/reports
 test/tmp
 test/version_tmp
 tmp
+
+*.swo
+*.swp
+
+# Ignore IDE
+.idea
+
+# Ignore bundler config
+.bundle
+
+#mac os
+.DS_Store
+._.DS_Store
+
+.project
diff --git a/bin/console b/bin/console
new file mode 100755
index 0000000..a6a475c
--- /dev/null
+++ b/bin/console
@@ -0,0 +1,11 @@
+#!/usr/bin/env ruby
+
+require "bundler/setup"
+require "china_sms"
+
+# You can add fixtures and/or initialization code here to make experimenting
+# with your gem easier. You can also use a different console, if you like.
+
+require 'irb'
+
+IRB.start
diff --git a/china_sms.gemspec b/china_sms.gemspec
index 65afb31..7290b3b 100644
--- a/china_sms.gemspec
+++ b/china_sms.gemspec
@@ -23,5 +23,6 @@ Gem::Specification.new do |spec|
   spec.add_development_dependency "bundler", "~> 1.2"
   spec.add_development_dependency "rake"
   spec.add_development_dependency "rspec"
+  spec.add_development_dependency "rspec-its"
   spec.add_development_dependency "webmock"
 end
diff --git a/lib/china_sms/service/sendcloud.rb b/lib/china_sms/service/sendcloud.rb
new file mode 100644
index 0000000..1d11c00
--- /dev/null
+++ b/lib/china_sms/service/sendcloud.rb
@@ -0,0 +1,96 @@
+# encoding: utf-8
+module ChinaSMS
+  module Service
+    module Sendcloud
+      extend self
+
+      URL = 'http://www.sendcloud.net/smsapi/send'.freeze
+
+      MESSAGES = {
+          '500' => '发送失败, 手机空号',
+          '510' => '发送失败, 手机停机',
+          '550' => '发送失败, 该模板内容被投诉',
+          '580' => '发送失败, 手机关机',
+          '590' => '发送失败, 其他原因',
+          '200' => '请求成功',
+          '311' => '部分号码请求成功',
+          '312' => '全部请求失败',
+          '411' => '手机号不能为空',
+          '412' => '手机号格式错误',
+          '413' => '有重复的手机号',
+          '421' => '签名参数错误',
+          '422' => '签名错误',
+          '431' => '模板不存在',
+          '432' => '模板未提交审核或者未审核通过',
+          '433' => '模板ID不能为空',
+          '441' => '替换变量格式错误',
+          '451' => '定时发送时间的格式错误',
+          '452' => '定时发送时间早于服务器时间, 时间已过去',
+          '461' => '时间戳无效, 与服务器时间间隔大于6秒',
+          '471' => 'smsUser不存在',
+          '472' => 'smsUser不能为空',
+          '473' => '没有权限, 免费用户不能发送短信',
+          '474' => '用户不存在',
+          '481' => '手机号和替换变量不能为空',
+          '482' => '手机号和替换变量格式错误',
+          '483' => '替换变量长度不能超过32个字符',
+          '496' => '一分钟内给当前手机号发信太多',
+          '498' => '一天内给当前手机号发信太多',
+          '499' => '账户额度不够',
+          '501' => '服务器异常',
+          '601' => '你没有权限访问'
+      }
+
+      module MSG_TYPE
+        SMS = 0
+
+        MMS = 1
+      end
+
+      def get_signature(params)
+        param_str = []
+        password = params.delete 'password'
+        params.keys.sort.each do |key|
+          param_str << "#{key}=#{params[key]}"
+        end
+
+        sign_str = "#{password}&#{param_str.join('&')}&#{password}"
+
+        Digest::MD5.hexdigest sign_str
+      end
+
+      def to(phone, content = '', options = {})
+        options[:type] ||= MSG_TYPE::SMS
+
+        params = {
+            'phone' => phone,
+            'vars' => options[:content].to_json,
+            'msgType' => options[:type],
+            'smsUser' => options[:username],
+            'templateId' => options[:template_id],
+            'password' => options[:password]
+        }
+
+        params.merge! 'signature' => get_signature(params)
+
+        puts "Request params: #{params}"
+
+        res = Net::HTTP.post_form(URI.parse(URL), params)
+
+        puts "Response Body: #{res.body}"
+
+        result JSON.parse(res.body)
+      end
+
+      def result(response)
+        code = response['statusCode']
+
+        {
+            success: (code == 200),
+            code: code,
+            message: response['message']
+        }
+      end
+    end
+  end
+end
diff --git a/spec/service/sendcloud_spec.rb b/spec/service/sendcloud_spec.rb
new file mode 100644
index 0000000..08c5400
--- /dev/null
+++ b/spec/service/sendcloud_spec.rb
@@ -0,0 +1,38 @@
+# encoding: utf-8
+require 'spec_helper'
+
+describe "Sendcloud" do
+  let(:username) { 'user' }
+  let(:password) { 'xxxxtemrejmijfeijixwewe' }
+
+  describe "#to" do
+    let(:url) { 'http://www.sendcloud.net/smsapi/send' }
+    let(:template_id) { 3126 }
+    let(:content) { {} }
+    subject { ChinaSMS::Service::Sendcloud.to phone, '', {content: content, template_id: template_id , username: username, password: password} }
+
+    describe 'single phone' do
+      let(:phone) { '13601647905' }
+
+      before do
+        body = {"phone"=> phone, "vars"=> content.to_json, "msgType"=> '0', "smsUser"=> username, "templateId"=>template_id, "signature"=>"16f795fd3514ed89bdd9fe577fb2601a" }
+        stub_request(:post, url).
+          with(body:  URI.encode_www_form(body)).
+          to_return(body: "{\"info\":{\"successCount\":1,\"smsIds\":[\"1478579653941_49236_566_3126_clrsg5$13601647905\"]},\"statusCode\":200,\"message\":\"请求成功\",\"result\":true}")
+      end
+
+      its([:success]) { should eql true }
+      its([:code]) { should eql 200 }
+      its([:message]) { should eql "请求成功" }
+    end
+  end
+
+  describe "#get_signature" do
+    let(:phone)  { "13601647905" }
+    let(:content) { {}.to_json }
+    let(:params) { {"phone"=> phone, "vars"=> content, "msgType"=>0, "smsUser"=> username, "templateId"=>3126, 'password'=> password} }
+    subject { ChinaSMS::Service::Sendcloud.get_signature params }
+
+    it { should eql "16f795fd3514ed89bdd9fe577fb2601a" }
+  end
+end
diff --git a/spec/spec_helper.rb b/spec/spec_helper.rb
index c5adbe2..7e831db 100644
--- a/spec/spec_helper.rb
+++ b/spec/spec_helper.rb
@@ -4,6 +4,7 @@
 
 require 'webmock/rspec'
 require 'china_sms'
+require 'rspec/its'
 
 #WebMock.allow_net_connect!
 RSpec.configure do |config|