diff --git a/DependencyInjection/EXSystApiDocExtension.php b/DependencyInjection/EXSystApiDocExtension.php
index 6d2fc06..7aef328 100644
--- a/DependencyInjection/EXSystApiDocExtension.php
+++ b/DependencyInjection/EXSystApiDocExtension.php
@@ -13,6 +13,7 @@ namespace EXSyst\Bundle\ApiDocBundle\DependencyInjection;
 
 use Nelmio\ApiDocBundle\Annotation\ApiDoc;
 use phpDocumentor\Reflection\DocBlockFactory;
+use Swagger\Annotations\Swagger;
 use Symfony\Component\Config\FileLocator;
 use Symfony\Component\DependencyInjection\ContainerBuilder;
 use Symfony\Component\DependencyInjection\Loader\XmlFileLoader;
@@ -40,10 +41,13 @@ class EXSystApiDocExtension extends Extension
 
         // Removes useless services
         if (!class_exists(ApiDoc::class)) {
-            $container->removeDefinition('exsyst_api_doc.routing_extractors.nelmio_annotation');
+            $container->removeDefinition('exsyst_api_doc.route_describers.nelmio_annotation');
         }
         if (!class_exists(DocBlockFactory::class)) {
-            $container->removeDefinition('exsyst_api_doc.routing_extractors.php_doc');
+            $container->removeDefinition('exsyst_api_doc.route_describers.php_doc');
+        }
+        if (!class_exists(Swagger::class)) {
+            $container->removeDefinition('exsyst_api_doc.describers.swagger_php');
         }
     }
 }
diff --git a/Describer/ExternalDocDescriber.php b/Describer/ExternalDocDescriber.php
new file mode 100644
index 0000000..10f74b1
--- /dev/null
+++ b/Describer/ExternalDocDescriber.php
@@ -0,0 +1,52 @@
+<?php
+
+<?php
+
+/*
+ * This file is part of the ApiDocBundle package.
+ *
+ * (c) EXSyst
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace EXSyst\Bundle\ApiDocBundle\Describer;
+
+use Doctrine\Common\Util\ClassUtils;
+use EXSyst\Bundle\ApiDocBundle\RouteDescriber\RouteDescriberInterface;
+use gossi\swagger\Swagger;
+use Symfony\Bundle\FrameworkBundle\Controller\ControllerNameParser;
+use Symfony\Component\Routing\Route;
+use Symfony\Component\Routing\RouterInterface;
+
+class ExternalDocDescriber implements DescriberInterface
+{
+    private $externalDoc;
+    private $stategy;
+
+    /**
+     * @param array|callable $externalDoc
+     * @param int            $strategy
+     */
+    public function __construct($externalDoc, $strategy = Swagger::PREFER_ORIGINAL)
+    {
+        $this->externalDoc = $externalDoc;
+        $this->strategy = $strategy;
+    }
+
+    public function describe(Swagger $api)
+    {
+        $externalDoc = $this->getExternalDoc();
+        $api->merge($externalDoc, $this->strategy);
+    }
+
+    private function getExternalDoc(): array
+    {
+        if (is_callable($this->externalDoc)) {
+            return call_user_func($this->externalDoc);
+        }
+
+        return $this->externalDoc;
+    }
+}
diff --git a/Describer/RouteDescriber.php b/Describer/RouteDescriber.php
index 42668c3..74e892a 100644
--- a/Describer/RouteDescriber.php
+++ b/Describer/RouteDescriber.php
@@ -12,7 +12,7 @@
 namespace EXSyst\Bundle\ApiDocBundle\Describer;
 
 use Doctrine\Common\Util\ClassUtils;
-use EXSyst\Bundle\ApiDocBundle\Extractor\Routing\RouteExtractorInterface;
+use EXSyst\Bundle\ApiDocBundle\RouteDescriber\RouteDescriberInterface;
 use gossi\swagger\Swagger;
 use Symfony\Bundle\FrameworkBundle\Controller\ControllerNameParser;
 use Symfony\Component\Routing\Route;
@@ -34,7 +34,7 @@ class RouteDescriber implements DescriberInterface
         $this->routeDescribers = $routeDescribers;
     }
 
-    public function describe(Swagger $swagger)
+    public function describe(Swagger $api)
     {
         if (0 === count($this->routeDescribers)) {
             return;
@@ -45,7 +45,7 @@ class RouteDescriber implements DescriberInterface
             if ($method = $this->getReflectionMethod($route->getDefault('_controller'))) {
                 // Extract as many informations as possible about this route
                 foreach ($this->routeDescribers as $describer) {
-                    $describer->describe($swagger, $route, $method);
+                    $describer->describe($api, $route, $method);
                 }
             }
         }
diff --git a/Describer/SwaggerPhpDescriber.php b/Describer/SwaggerPhpDescriber.php
new file mode 100644
index 0000000..1c4b015
--- /dev/null
+++ b/Describer/SwaggerPhpDescriber.php
@@ -0,0 +1,46 @@
+<?php
+
+/*
+ * This file is part of the ApiDocBundle package.
+ *
+ * (c) EXSyst
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace EXSyst\Bundle\ApiDocBundle\Describer;
+
+use Doctrine\Common\Util\ClassUtils;
+use EXSyst\Bundle\ApiDocBundle\RouteDescriber\RouteDescriberInterface;
+use gossi\swagger\Swagger;
+use Symfony\Bundle\FrameworkBundle\Controller\ControllerNameParser;
+use Symfony\Component\Routing\Route;
+use Symfony\Component\Routing\RouterInterface;
+
+class SwaggerPhpDescriber implements DescriberInterface
+{
+    private $projectPath;
+    private $overwrite;
+
+    /**
+     * @param string $projectPath
+     */
+    public function __construct(string $projectPath, bool $overwrite = false)
+    {
+        $this->projectPath = $projectPath;
+        $this->overwrite = $overwrite;
+    }
+
+    public function describe(Swagger $api)
+    {
+        $annotation = \Swagger\scan($this->projectPath);
+
+        $api->merge($this->normalize($annotation), $this->overwrite);
+    }
+
+    private function normalize($annotation)
+    {
+        return json_decode(json_encode($annotation));
+    }
+}
diff --git a/Resources/config/services.xml b/Resources/config/services.xml
index 86fbf2d..3fe3636 100644
--- a/Resources/config/services.xml
+++ b/Resources/config/services.xml
@@ -9,6 +9,12 @@
         </service>
 
         <!-- Extractors -->
+        <service id="exsyst_api_doc.describers.swagger_php" class="EXSyst\Bundle\ApiDocBundle\Describer\SwaggerPhpDescriber" public="false">
+            <argument>%kernel.root_dir%</argument>
+
+            <tag name="exsyst_api_doc.describer" priority="-150" />
+        </service>
+
         <service id="exsyst_api_doc.describers.route" class="EXSyst\Bundle\ApiDocBundle\Describer\RouteDescriber" public="false">
             <argument type="service" id="router" />
             <argument type="service" id="controller_name_converter" />
diff --git a/RouteDescriber/NelmioAnnotationDescriber.php b/RouteDescriber/NelmioAnnotationDescriber.php
index 7c3a344..e14d584 100644
--- a/RouteDescriber/NelmioAnnotationDescriber.php
+++ b/RouteDescriber/NelmioAnnotationDescriber.php
@@ -101,10 +101,10 @@ class NelmioAnnotationDescriber implements RouteDescriberInterface
                 $items = $items->getItems();
             } while ('[]' === substr($requirement, -2));
 
-            $items->setType(Swagger::T_STRING);
+            $items->setType('string');
             $items->setFormat($requirement);
         } else {
-            $parameter->setType(Swagger::T_STRING);
+            $parameter->setType('string');
             $parameter->setFormat($requirement);
         }
 
diff --git a/RouteDescriber/RouteMetadataDescriber.php b/RouteDescriber/RouteMetadataDescriber.php
index 271d312..b0421a6 100644
--- a/RouteDescriber/RouteMetadataDescriber.php
+++ b/RouteDescriber/RouteMetadataDescriber.php
@@ -26,7 +26,7 @@ class RouteMetadataDescriber implements RouteDescriberInterface
             foreach ($route->getRequirements() as $parameterName => $requirement) {
                 $parameter = $operation->getParameters()->get($parameterName, 'path');
                 $parameter->setRequired(true);
-                $parameter->setType(Swagger::T_STRING);
+                $parameter->setType('string');
                 $parameter->setFormat($requirement);
             }
         }
diff --git a/Tests/Functional/Fixtures/SwaggerPhp/Info.php b/Tests/Functional/Fixtures/SwaggerPhp/Info.php
new file mode 100644
index 0000000..29ede8c
--- /dev/null
+++ b/Tests/Functional/Fixtures/SwaggerPhp/Info.php
@@ -0,0 +1,24 @@
+<?php
+
+/*
+ * This file is part of the ApiDocBundle package.
+ *
+ * (c) EXSyst
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace EXSyst\Bundle\ApiDocBundle\Tests\Functional\Fixtures\SwaggerPhp;
+
+use Swagger\Annotations\Info as InfoAnnotation;
+
+/**
+ * @InfoAnnotation(
+ *   title="My Awesome App",
+ *   version="1.3"
+ * )
+ */
+class Info
+{
+}
diff --git a/Tests/Functional/FunctionalTest.php b/Tests/Functional/FunctionalTest.php
index cda0ba8..fcf76fa 100644
--- a/Tests/Functional/FunctionalTest.php
+++ b/Tests/Functional/FunctionalTest.php
@@ -50,6 +50,15 @@ class FunctionalTest extends WebTestCase
         $this->assertTrue($operation->getDeprecated());
     }
 
+    public function testSwaggerPhpInfo()
+    {
+        $api = $this->getSwaggerDefinition();
+        $info = $api->getInfo();
+
+        $this->assertEquals('My Awesome App', $info->getTitle());
+        $this->assertEquals('1.3', $info->getVersion());
+    }
+
     private function getSwaggerDefinition()
     {
         static::createClient();
diff --git a/composer.json b/composer.json
index 6ea2e92..66f9804 100644
--- a/composer.json
+++ b/composer.json
@@ -9,17 +9,18 @@
         }
     ],
     "require": {
-        "php": ">=7.0",
+        "php": "^7.0",
         "symfony/framework-bundle": "^3.2@dev",
-        "gossi/swagger": "^0.2"
+        "exsyst/swagger": "dev-master"
     },
     "require-dev": {
-        "symfony/browser-kit": "~2.8|~3.0",
+        "symfony/browser-kit": "^2.8|^3.0",
         "symfony/phpunit-bridge": "^3.2@dev",
-        "sensio/framework-extra-bundle": "~3.0",
+        "sensio/framework-extra-bundle": "^3.0",
         "nelmio/api-doc-bundle": "^2.0",
         "phpdocumentor/reflection-docblock": "^3.1",
-        "phpunit/phpunit": "^5.4"
+        "phpunit/phpunit": "^5.4",
+        "zircote/swagger-php": "^2.0"
     },
     "suggest": {
         "nelmio/api-doc-bundle": "For using the ApiDoc annotation.",