diff --git a/README.md b/README.md
index c4603c7d5..f0ffe18c3 100644
--- a/README.md
+++ b/README.md
@@ -43,6 +43,51 @@ Actually we using Guzzle as HTTP client
 $influx->mark("tcp.test", ["mark" => "element"]);
 ```
 
+## Query InfluxDB
+
+You can query the time series database using the query method.
+
+```php
+$influx->query("select * from mine");
+$influx->query("select * from mine", "s"); // with time_precision
+```
+
+You can query the database only if the adapter is queryable (implements `QueryableInterface`),
+actually `GuzzleAdapter`.
+
+The adapter returns the json decoded body of the InfluxDB response, something like:
+
+```
+array(1) {
+  [0] =>
+  class stdClass#1 (3) {
+    public $name =>
+    string(8) "tcp.test"
+    public $columns =>
+    array(3) {
+      [0] =>
+      string(4) "time"
+      [1] =>
+      string(15) "sequence_number"
+      [2] =>
+      string(4) "mark"
+    }
+    public $points =>
+    array(1) {
+      [0] =>
+      array(3) {
+        [0] =>
+        int(1410545635590)
+        [1] =>
+        int(2390001)
+        [2] =>
+        string(7) "element"
+      }
+    }
+  }
+}
+```
+
 ## Prepare lib dependencies
 
 Use your DiC or Service Locator in order to provide a configured client
diff --git a/composer.json b/composer.json
index 82c20d1f5..e6b7245c2 100644
--- a/composer.json
+++ b/composer.json
@@ -29,7 +29,7 @@
     ],
     "autoload": {
         "psr-0": {
-            "InfluxDB": ["./src/", "./tests"]
+            "InfluxDB\\": ["./src/", "./tests"]
         }
     },
     "suggests": {
diff --git a/spec/InfluxDB/Adapter/GuzzleAdapterSpec.php b/spec/InfluxDB/Adapter/GuzzleAdapterSpec.php
index 73f8f0ffa..3befd1b72 100644
--- a/spec/InfluxDB/Adapter/GuzzleAdapterSpec.php
+++ b/spec/InfluxDB/Adapter/GuzzleAdapterSpec.php
@@ -11,7 +11,9 @@ class GuzzleAdapterSpec extends ObjectBehavior
 {
     function let(Client $client, Options $options)
     {
-        $options->getTcpEndpoint()->willReturn("localhost");
+        $options->getHttpSeriesEndpoint()->willReturn("localhost");
+        $options->getUsername()->willReturn("one");
+        $options->getPassword()->willReturn("two");
         $this->beConstructedWith($client, $options);
     }
 
@@ -22,8 +24,23 @@ class GuzzleAdapterSpec extends ObjectBehavior
 
     function it_should_send_data_via_post(Client $client, Options $options)
     {
-        $client->post("localhost", ['body' => json_encode(['pippo'])])->shouldBeCalledTimes(1);
+        $client->post("localhost", [
+            'auth' => ["one", "two"],
+            'body' => json_encode(['pippo'])
+        ])->shouldBeCalledTimes(1);
 
         $this->send(["pippo"]);
     }
+
+    function it_should_query_data(Client $client, Options $options)
+    {
+        $client->get("select * from tcp.test", [])->willReturn([]);
+        $this->query("select * from tcp.test")->shouldReturn([]);
+    }
+
+    function it_should_query_data_with_time_precision(Client $client, Options $options)
+    {
+        $client->get("select * from tcp.test", ["time_precision" => "s"])->willReturn([]);
+        $this->query("select * from tcp.test", "s")->shouldReturn([]);
+    }
 }
diff --git a/spec/InfluxDB/ClientSpec.php b/spec/InfluxDB/ClientSpec.php
index ce1918e31..28a006d5d 100644
--- a/spec/InfluxDB/ClientSpec.php
+++ b/spec/InfluxDB/ClientSpec.php
@@ -4,6 +4,8 @@ namespace spec\InfluxDB;
 
 use PhpSpec\ObjectBehavior;
 use Prophecy\Argument;
+use InfluxDB\Adapter\GuzzleAdapter;
+use InfluxDB\Adapter\UdpAdapter;
 
 class ClientSpec extends ObjectBehavior
 {
@@ -31,4 +33,35 @@ class ClientSpec extends ObjectBehavior
             "title" => "Autogrill"
         ]);
     }
+
+    function it_should_query_on_querable_adapter(GuzzleAdapter $adapter)
+    {
+        $this->setAdapter($adapter);
+        $adapter->query("select * from tcp.test", false)->willReturn([]);
+
+        $this->query("select * from tcp.test")->shouldReturn([]);
+    }
+
+    function it_should_query_with_time_precision(GuzzleAdapter $adapter)
+    {
+        $this->setAdapter($adapter);
+        $adapter->query("select * from tcp.test", "s")->willReturn([]);
+
+        $this->query("select * from tcp.test", "s")->shouldReturn([]);
+    }
+
+    function it_should_query_but_skip_invalid_time_precision(GuzzleAdapter $adapter)
+    {
+        $this->setAdapter($adapter);
+        $adapter->query("select * from tcp.test", false)->willReturn([]);
+
+        $this->query("select * from tcp.test", "r")->shouldReturn([]);
+    }
+
+    function it_should_thrown_an_exception_on_unquerable_adapter(UdpAdapter $adapter)
+    {
+        $this->setAdapter($adapter);
+
+        $this->shouldThrow("\\BadMethodCallException")->duringQuery("select * from tcp.test");
+    }
 }
diff --git a/spec/InfluxDB/OptionsSpec.php b/spec/InfluxDB/OptionsSpec.php
index 44ea4fb4a..d926faf83 100644
--- a/spec/InfluxDB/OptionsSpec.php
+++ b/spec/InfluxDB/OptionsSpec.php
@@ -15,8 +15,8 @@ class OptionsSpec extends ObjectBehavior
     function it_should_create_a_valid_tcp_endpoint()
     {
         $this->setDatabase("mine");
-        $this->getTcpEndpoint()
-            ->shouldReturn("http://localhost:8086/db/mine/series?u=root&p=root");
+        $this->getHttpSeriesEndpoint()
+            ->shouldReturn("http://localhost:8086/db/mine/series");
     }
 
     function it_should_allows_option_override_for_tcp_endpoint()
@@ -26,15 +26,15 @@ class OptionsSpec extends ObjectBehavior
         $this->setUsername("walter");
         $this->setPassword("walter");
         $this->setDatabase("me");
-        $this->getTcpEndpoint()
-            ->shouldReturn("http://influx.1.prod.tld:19385/db/me/series?u=walter&p=walter");
+        $this->getHttpSeriesEndpoint()
+            ->shouldReturn("http://influx.1.prod.tld:19385/db/me/series");
     }
 
     function it_should_allows_https_for_tcp_endpoint()
     {
         $this->setProtocol("https");
         $this->setDatabase("me");
-        $this->getTcpEndpoint()
-            ->shouldReturn("https://localhost:8086/db/me/series?u=root&p=root");
+        $this->getHttpSeriesEndpoint()
+            ->shouldReturn("https://localhost:8086/db/me/series");
     }
 }
diff --git a/src/InfluxDB/Adapter/GuzzleAdapter.php b/src/InfluxDB/Adapter/GuzzleAdapter.php
index fc7bf7fb7..da27104d0 100644
--- a/src/InfluxDB/Adapter/GuzzleAdapter.php
+++ b/src/InfluxDB/Adapter/GuzzleAdapter.php
@@ -5,7 +5,7 @@ namespace InfluxDB\Adapter;
 use GuzzleHttp\Client;
 use InfluxDB\Options;
 
-class GuzzleAdapter implements AdapterInterface
+class GuzzleAdapter implements AdapterInterface, QueryableInterface
 {
     private $httpClient;
     private $options;
@@ -20,10 +20,27 @@ class GuzzleAdapter implements AdapterInterface
     public function send($message)
     {
         $httpMessage = [
+            "auth" => [$this->options->getUsername(), $this->options->getPassword()],
             "body" => json_encode($message)
         ];
-        $endpoint = $this->options->getTcpEndpoint();
+        $endpoint = $this->options->getHttpSeriesEndpoint();
 
-        $this->httpClient->post($endpoint, $httpMessage);
+        return $this->httpClient->post($endpoint, $httpMessage);
+    }
+
+    public function query($query, $timePrecision = false)
+    {
+        $options = [
+            "auth" => [$this->options->getUsername(), $this->options->getPassword()],
+            'query' => [
+                "q" => $query,
+            ]
+        ];
+        if ($timePrecision) {
+            $options["query"]["time_precision"] = $timePrecision;
+        }
+
+        $endpoint = $this->options->getHttpSeriesEndpoint();
+        return $this->httpClient->get($endpoint, $options)->json();
     }
 }
diff --git a/src/InfluxDB/Adapter/QueryableInterface.php b/src/InfluxDB/Adapter/QueryableInterface.php
new file mode 100644
index 000000000..fa604b069
--- /dev/null
+++ b/src/InfluxDB/Adapter/QueryableInterface.php
@@ -0,0 +1,7 @@
+<?php
+namespace InfluxDb\Adapter;
+
+interface QueryableInterface
+{
+    public function query($query, $timePrecision = false);
+}
diff --git a/src/InfluxDB/Client.php b/src/InfluxDB/Client.php
index e92a889fb..7428004ce 100644
--- a/src/InfluxDB/Client.php
+++ b/src/InfluxDB/Client.php
@@ -2,6 +2,8 @@
 
 namespace InfluxDB;
 
+use InfluxDb\Adapter\QueryableInterface;
+
 class Client
 {
     private $adapter;
@@ -36,4 +38,29 @@ class Client
 
         return $this->getAdapter()->send([$data]);
     }
+
+    public function query($query, $timePrecision = false)
+    {
+        if (!($this->getAdapter() instanceOf QueryableInterface)) {
+            throw new  \BadMethodCallException("You can query the database only if the adapter supports it!");
+        }
+
+        $timePrecision = $this->clearTimePrecision($timePrecision);
+
+        return $this->getAdapter()->query($query, $timePrecision);
+    }
+
+    private function clearTimePrecision($timePrecision)
+    {
+        switch ($timePrecision) {
+            case 's':
+            case 'u':
+            case 'ms':
+                break;
+            default:
+                $timePrecision = false;
+        }
+
+        return $timePrecision;
+    }
 }
diff --git a/src/InfluxDB/Options.php b/src/InfluxDB/Options.php
index e084a1848..02ff5ef44 100644
--- a/src/InfluxDB/Options.php
+++ b/src/InfluxDB/Options.php
@@ -87,16 +87,14 @@ class Options
         return $this;
     }
 
-    public function getTcpEndpoint()
+    public function getHttpSeriesEndpoint()
     {
         return sprintf(
-            "%s://%s:%d/db/%s/series?u=%s&p=%s",
+            "%s://%s:%d/db/%s/series",
             $this->getProtocol(),
             $this->getHost(),
             $this->getPort(),
-            $this->getDatabase(),
-            $this->getUsername(),
-            $this->getPassword()
+            $this->getDatabase()
         );
     }
 }
diff --git a/tests/InfluxDB/ClientTest.php b/tests/InfluxDB/ClientTest.php
index 05690b741..ec6581510 100644
--- a/tests/InfluxDB/ClientTest.php
+++ b/tests/InfluxDB/ClientTest.php
@@ -16,9 +16,6 @@ class ClientTest extends \PHPUnit_Framework_TestCase
     public function setUp()
     {
         $options = include __DIR__ . '/../bootstrap.php';
-        $this->options = $options;
-
-        $this->object = new Client();
 
         $client = new Crodas(
             $options["tcp"]["host"],
@@ -34,11 +31,8 @@ class ClientTest extends \PHPUnit_Framework_TestCase
         $client->createDatabase($options["tcp"]["database"]);
 
         $this->anotherClient = $client;
-    }
 
-    public function testGuzzleHttpApiWorksCorrectly()
-    {
-        $tcpOptions = $this->options["tcp"];
+        $tcpOptions = $options["tcp"];
 
         $options = new Options();
         $options->setHost($tcpOptions["host"]);
@@ -47,17 +41,56 @@ class ClientTest extends \PHPUnit_Framework_TestCase
         $options->setPassword($tcpOptions["password"]);
         $options->setDatabase($tcpOptions["database"]);
 
+        $this->options = $options;
+
         $guzzleHttp = new GuzzleHttpClient();
         $adapter = new InfluxHttpAdapter($guzzleHttp, $options);
 
         $influx = new Client();
         $influx->setAdapter($adapter);
+        $this->object = $influx;
+    }
 
-        $influx->mark("tcp.test", ["mark" => "element"]);
+    public function testGuzzleHttpApiWorksCorrectly()
+    {
+        $this->object->mark("tcp.test", ["mark" => "element"]);
 
-        $cursor = $this->anotherClient->getDatabase($tcpOptions["database"])
+        $cursor = $this->anotherClient->getDatabase($this->options->getDatabase())
             ->query("select * from tcp.test");
         $this->assertCount(1, $cursor);
         $this->assertEquals("element", $cursor[0]->mark);
     }
+
+    public function testGuzzleHttpQueryApiWorksCorrectly()
+    {
+        $this->object->mark("tcp.test", ["mark" => "element"]);
+
+        $body = $this->object->query("select * from tcp.test");
+
+        $this->assertCount(1, $body);
+        $this->assertEquals("tcp.test", $body[0]["name"]);
+        $this->assertEquals("element", $body[0]["points"][0][2]);
+    }
+
+    public function testGuzzleHttpQueryApiWithMultipleData()
+    {
+        $this->object->mark("tcp.test", ["mark" => "element"]);
+        $this->object->mark("tcp.test", ["mark" => "element2"]);
+        $this->object->mark("tcp.test", ["mark" => "element3"]);
+
+        $body = $this->object->query("select mark from tcp.test", "s");
+
+        $this->assertCount(3, $body[0]["points"]);
+        $this->assertEquals("tcp.test", $body[0]["name"]);
+    }
+
+    public function testGuzzleHttpQueryApiWithTimePrecision()
+    {
+        $this->object->mark("tcp.test", ["mark" => "element"]);
+
+        $body = $this->object->query("select mark from tcp.test", "s");
+
+        $this->assertCount(1, $body[0]["points"]);
+        $this->assertEquals("tcp.test", $body[0]["name"]);
+    }
 }