diff --git a/src/Server.php b/src/Server.php
new file mode 100644
index 00000000..a560c72b
--- /dev/null
+++ b/src/Server.php
@@ -0,0 +1,137 @@
+<?php
+namespace League\OAuth2\Server;
+
+use DateInterval;
+use League\OAuth2\Server\ResponseTypes\BearerTokenResponseType;
+use League\OAuth2\Server\ResponseTypes\ResponseTypeInterface;
+use Symfony\Component\HttpFoundation\Request;
+
+class Server extends AbstractServer
+{
+    /**
+     * @var \League\OAuth2\Server\Grant\GrantTypeInterface[]
+     */
+    protected $enabledGrantTypes = [];
+
+    /**
+     * @var \League\OAuth2\Server\ResponseTypes\ResponseTypeInterface[]
+     */
+    protected $grantTypeResponseTypes = [];
+
+    /**
+     * @var DateInterval[]
+     */
+    protected $grantTypeAccessTokenTTL = [];
+
+    /**
+     * @var \League\OAuth2\Server\ResponseTypes\ResponseTypeInterface
+     */
+    protected $defaultResponseType;
+
+    /**
+     * @var DateInterval
+     */
+    protected $defaultAccessTokenTTL;
+
+    /**
+     * @var string
+     */
+    protected $scopeDelimiter = ' ';
+
+    /**
+     * New server instance
+     *
+     * @param \League\OAuth2\Server\ResponseTypes\ResponseTypeInterface $defaultResponseType
+     * @param DateInterval                                              $defaultAccessTokenTTL
+     */
+    public function __construct(
+        ResponseTypeInterface $defaultResponseType = null,
+        DateInterval $defaultAccessTokenTTL = null
+    ) {
+        $this->defaultResponseType = ($defaultResponseType instanceof ResponseTypeInterface)
+            ? $defaultResponseType
+            : new BearerTokenResponseType();
+
+        $this->defaultAccessTokenTTL = ($defaultAccessTokenTTL instanceof DateInterval)
+            ? $defaultAccessTokenTTL
+            : new DateInterval('PT01H'); // default of 1 hour
+
+        parent::__construct();
+    }
+
+    /**
+     * @param string                                                    $grantType
+     * @param \League\OAuth2\Server\ResponseTypes\ResponseTypeInterface $responseType
+     * @param DateInterval                                              $accessTokenTTL
+     *
+     * @throws \Exception
+     */
+    public function enableGrantType(
+        $grantType,
+        ResponseTypeInterface $responseType = null,
+        DateInterval $accessTokenTTL = null
+    ) {
+        if ($this->getContainer()->isInServiceProvider($grantType)) {
+            $grant = $this->getContainer()->get($grantType);
+            $grantIdentifier = $grant->getIdentifier();
+            $this->enabledGrantTypes[$grantIdentifier] = $grant;
+        } else {
+            throw new \Exception('Unregistered grant type');
+        }
+
+        // Set grant response type
+        if ($responseType instanceof ResponseTypeInterface) {
+            $this->grantTypeResponseTypes[$grantIdentifier] = $responseType;
+        } else {
+            $this->grantTypeResponseTypes[$grantIdentifier] = $this->defaultResponseType;
+        }
+
+        // Set grant access token TTL
+        if ($accessTokenTTL instanceof DateInterval) {
+            $this->grantTypeAccessTokenTTL[$grantIdentifier] = $accessTokenTTL;
+        } else {
+            $this->grantTypeAccessTokenTTL[$grantIdentifier] = $this->defaultAccessTokenTTL;
+        }
+    }
+
+    /**
+     * Return an access token response
+     *
+     * @param \Symfony\Component\HttpFoundation\Request $request
+     *
+     * @return \League\OAuth2\Server\ResponseTypes\ResponseTypeInterface
+     * @throws \Exception
+     */
+    public function getAccessTokenResponse(Request $request = null)
+    {
+        if ($request === null) {
+            $request = Request::createFromGlobals();
+        }
+
+        // Run the requested grant type
+        $grantType = $request->request->get('grant_type', null);
+
+        if ($grantType === null || !isset($this->enabledGrantTypes[$grantType])) {
+            throw new \Exception('Unknown grant type');
+        }
+
+        $responseType = $this->enabledGrantTypes[$grantType]->getAccessTokenAsType(
+            $request,
+            $this->grantTypeResponseTypes[$grantType],
+            $this->grantTypeAccessTokenTTL[$grantType],
+            $this->scopeDelimiter
+        );
+
+        return $responseType->generateHttpResponse();
+    }
+
+    /**
+     * Set the delimiter used to separate scopes in a request
+     *
+     * @param string $scopeDelimiter
+     */
+    public function setScopeDelimiter($scopeDelimiter)
+    {
+        $this->scopeDelimiter = $scopeDelimiter;
+    }
+}