| Silex\Application | The Silex framework class. |
| Silex\ConstraintValidatorFactory | Uses a service container to create constraint validators with dependencies. |
| Silex\Controller | A wrapper for a controller, mapped to a route. |
| Silex\ControllerCollection | Builds Silex controllers. |
| Silex\ControllerProviderInterface | Interface for controller providers. |
| Silex\ControllerResolver | Adds Application as a valid argument for controllers. |
| Silex\EventListener\ConverterListener | Handles converters. |
| Silex\EventListener\LocaleListener | Initializes the locale based on the current request. |
| Silex\EventListener\MiddlewareListener | Manages the route middlewares. |
| Silex\EventListener\StringToResponseListener | Converts string responses to proper Response instances. |
| Silex\ExceptionHandler | Defaults exception handler. |
| Silex\ExceptionListenerWrapper | Wraps exception listeners. |
| Silex\Exception\ControllerFrozenException | Exception, is thrown when a frozen controller is modified |
| Silex\HttpCache | HTTP Cache extension to allow using the run() shortcut. |
| Silex\LazyUrlMatcher | Implements a lazy UrlMatcher. |
| Silex\Provider\DoctrineServiceProvider | Doctrine DBAL Provider. |
| Silex\Provider\FormServiceProvider | Symfony Form component Provider. |
| Silex\Provider\HttpCacheServiceProvider | Symfony HttpKernel component Provider for HTTP cache. |
| Silex\Provider\MonologServiceProvider | Monolog Provider. |
| Silex\Provider\RememberMeServiceProvider | Remember-me authentication for the SecurityServiceProvider |
| Silex\Provider\SecurityServiceProvider | Symfony Security component Provider. |
| Silex\Provider\SerializerServiceProvider | Symfony Serializer component Provider. |
| Silex\Provider\ServiceControllerServiceProvider | |
| Silex\Provider\SessionServiceProvider | Symfony HttpFoundation component Provider for sessions. |
| Silex\Provider\SwiftmailerServiceProvider | Swiftmailer Provider. |
| Silex\Provider\TranslationServiceProvider | Symfony Translation component Provider. |
| Silex\Provider\TwigCoreExtension | Twig extension. |
| Silex\Provider\TwigServiceProvider | Twig integration for Silex. |
| Silex\Provider\UrlGeneratorServiceProvider | Symfony Routing component Provider for URL generation. |
| Silex\Provider\ValidatorServiceProvider | Symfony Validator component Provider. |
| Silex\RedirectableUrlMatcher | Implements the RedirectableUrlMatcherInterface for Silex. |
| Silex\Route | A wrapper for a controller, mapped to a route. |
| Silex\ServiceControllerResolver | Enables name_of_service:method_name syntax for declaring controllers. |
| Silex\ServiceProviderInterface | Interface that must implement all Silex service providers. |
| Silex\Util\Compiler | The Compiler class compiles the Silex framework. |
| Silex\WebTestCase | WebTestCase is the base class for functional tests. |