diff --git a/src/OpenApiV3Validator.php b/src/OpenApiV3Validator.php
index 7358be5..5cd8f43 100644
--- a/src/OpenApiV3Validator.php
+++ b/src/OpenApiV3Validator.php
@@ -14,10 +14,6 @@
 
 class OpenApiV3Validator implements OpenApiValidatorInterface
 {
-    /**
-     * @var OpenApiV3ToJsonSchemaConverter
-     */
-    private $converter;
 
     /**
      * @var JsonSchemaValidator
@@ -55,31 +51,20 @@ class OpenApiV3Validator implements OpenApiValidatorInterface
     private $openApiSchemaFileName;
 
     /**
-     * @param string                         $openApiSchemaFileName
+     * @param string $openApiSchemaFileName
      * @param OpenApiV3ToJsonSchemaConverter $converter
-     * @param SchemaStorage                  $schemaStorage
+     * @param SchemaStorage $schemaStorage
      */
     public function __construct(
         string $openApiSchemaFileName,
-        OpenApiV3ToJsonSchemaConverter $converter,
         SchemaStorage $schemaStorage
-    ) {
-        $this->converter = $converter;
+    )
+    {
         $this->openApiSchemaFileName = $openApiSchemaFileName;
         $this->schemaStorage = $schemaStorage;
-        $this->setupSchema();
         $this->jsonSchemaValidator = new JsonSchemaValidator(new Factory($this->schemaStorage));
     }
 
-    /**
-     * Converts OpenApi v3 schema to json schema draft 4, adds it to storage.
-     */
-    private function setupSchema()
-    {
-        $openApiSchema = json_decode(file_get_contents($this->openApiSchemaFileName));
-        $this->schemaStorage->addSchema($this->openApiSchemaFileName, $this->converter->convertDocument($openApiSchema));
-    }
-
     /**
      * Validate a response against the OpenApi schema.
      *
@@ -91,11 +76,12 @@ public function validateResponse(
         string $method,
         int $responseCode,
         string $contentType = 'application/json'
-    ): bool {
+    ): bool
+    {
         if (!$this->emptyResponseExpected($responseCode)) {
             $responseSchemaPath = $this->getResponseSchemaPath(preg_replace('/\?.*/', '', $pathName), $method, $responseCode, $contentType);
             $responseJson = json_decode($response->getBody());
-            $this->jsonSchemaValidator->validate($responseJson, (object) ['$ref' => $responseSchemaPath]);
+            $this->jsonSchemaValidator->validate($responseJson, (object)['$ref' => $responseSchemaPath]);
         }
 
         if (!$this->jsonSchemaValidator->isValid()) {
@@ -108,7 +94,7 @@ public function validateResponse(
     /**
      * @param string $pathName
      * @param string $method
-     * @param int    $responseCode
+     * @param int $responseCode
      * @param string $contentType
      *
      * @return string
@@ -252,4 +238,5 @@ private function emptyResponseExpected($responseCode): bool
     {
         return 204 === $responseCode;
     }
+
 }
diff --git a/src/OpenApiValidatorFactory.php b/src/OpenApiValidatorFactory.php
index b1289b7..e6286bb 100644
--- a/src/OpenApiValidatorFactory.php
+++ b/src/OpenApiValidatorFactory.php
@@ -15,6 +15,25 @@ class OpenApiValidatorFactory
      */
     public function v3Validator(string $openApiSchemaFileName): OpenApiValidatorInterface
     {
-        return new OpenApiV3Validator($openApiSchemaFileName, new OpenApiV3ToJsonSchemaConverter(), new SchemaStorage());
+        $converter = new OpenApiV3ToJsonSchemaConverter();
+        $schemaStorage = new SchemaStorage();
+        $openApiSchema = json_decode(file_get_contents($openApiSchemaFileName));
+        $schemaStorage->addSchema($openApiSchemaFileName, $converter->convertDocument($openApiSchema));
+
+        return new OpenApiV3Validator($openApiSchemaFileName, $schemaStorage);
+    }
+
+    /**
+     * @param object $openApiSchema
+     * @param string $id
+     * @return OpenApiValidatorInterface
+     */
+    public static function v3ValidatorFromSchema($openApiSchema, string $id = 'file://openapi'): OpenApiValidatorInterface
+    {
+        $converter = new OpenApiV3ToJsonSchemaConverter();
+        $schemaStorage = new SchemaStorage();
+        $schemaStorage->addSchema($id, $converter->convertDocument($openApiSchema));
+
+        return new OpenApiV3Validator($id, $schemaStorage);
     }
 }
diff --git a/tests/unit/OpenApiV3ValidatorTest.php b/tests/unit/OpenApiV3ValidatorTest.php
index ca91a12..46adc65 100644
--- a/tests/unit/OpenApiV3ValidatorTest.php
+++ b/tests/unit/OpenApiV3ValidatorTest.php
@@ -26,7 +26,6 @@ public function setUp()
 
         $this->validator = new OpenApiV3Validator(
             'file://'.dirname(__DIR__).'/fixtures/openapiv3-schema.json',
-            new OpenApiV3ToJsonSchemaConverter(),
             new SchemaStorage()
         );
     }
diff --git a/tests/unit/OpenApiValidatorFactoryTest.php b/tests/unit/OpenApiValidatorFactoryTest.php
index 02dc598..6f79ffa 100644
--- a/tests/unit/OpenApiValidatorFactoryTest.php
+++ b/tests/unit/OpenApiValidatorFactoryTest.php
@@ -8,6 +8,12 @@
 
 class OpenApiValidatorFactoryTest extends TestCase
 {
+
+    /**
+     * @var OpenApiValidatorFactory
+     */
+    private $factory;
+
     public function setUp()
     {
         parent::setUp();
@@ -19,7 +25,7 @@ public function testV3ValidatorSuccess()
     {
         $this->assertInstanceOf(
             OpenApiV3Validator::class,
-            $this->factory->v3Validator('file://'.dirname(__DIR__).'/fixtures/openapiv3-schema.json')
+            $this->factory->v3Validator('file://' . dirname(__DIR__) . '/fixtures/openapiv3-schema.json')
         );
     }
 
@@ -30,7 +36,15 @@ public function testV3ValidatorFileNotFound()
     {
         $this->assertInstanceOf(
             OpenApiV3Validator::class,
-            $this->factory->v3Validator('file://'.dirname(__DIR__).'/fixtures/doesnt-exist.json')
+            $this->factory->v3Validator('file://' . dirname(__DIR__) . '/fixtures/doesnt-exist.json')
+        );
+    }
+
+    public function testV3ValidatorFromSchemaSuccess()
+    {
+        $this->assertInstanceOf(
+            OpenApiV3Validator::class,
+            OpenApiValidatorFactory::v3ValidatorFromSchema((object)[])
         );
     }
 }