diff --git a/Entity/CasUser.php b/Entity/CasUser.php
new file mode 100644
index 0000000..621d6fe
--- /dev/null
+++ b/Entity/CasUser.php
@@ -0,0 +1,62 @@
+<?php
+
+namespace L3\Bundle\CasGuardBundle\Entity;
+
+use Symfony\Component\Security\Core\User\UserInterface;
+
+/**
+ * this is a very basic implementation exemple, use your own "CasUser" or extends this class
+ */
+class CasUser implements CasUserInterface, UserInterface
+{
+    private string $identifier;
+
+    private array $roles = [];
+
+    private $attributes = [];
+
+    public function __construct(string $identifier)
+    {
+        $this->identifier = $identifier;
+    }
+
+    public function setCasAttributes(array $attributes)
+    {
+        $this->attributes = $attributes;
+    }
+
+    public function getAttributes(): array
+    {
+        return $this->attributes;
+    }
+
+    /**
+     * @see UserInterface
+     */
+    public function getRoles(): array
+    {
+        $roles = $this->roles;
+        // guarantee every user at least has ROLE_USER
+        $roles[] = 'ROLE_USER';
+
+        return array_unique($roles);
+    }
+
+    /**
+     * @param list<string> $roles
+     */
+    public function setRoles(array $roles): static
+    {
+        $this->roles = $roles;
+
+        return $this;
+    }
+
+    /**
+     * @return non-empty-string
+     */
+    public function getUserIdentifier(): string
+    {
+        return $this->identifier;
+    }
+}
diff --git a/README.md b/README.md
index 86332dc..1167077 100644
--- a/README.md
+++ b/README.md
@@ -751,6 +751,97 @@ class MyUserEntity implements CasUserInterface
 ...
 ``````
 
+Finally, you can work with a custom UserProvider (that extends, or not, CasUserProvider), to create users from cas attributes only (and skip useless ldap extra queries), like this exemple :
+```
+<?php
+
+namespace App\Security;
+
+use App\Entity\User;
+use App\Repository\UserRepository;
+use Doctrine\ORM\EntityManagerInterface;
+use L3\Bundle\CasGuardBundle\Entity\CasUserInterface;
+use L3\Bundle\CasGuardBundle\Security\CasAttributeStorage;
+use L3\Bundle\CasGuardBundle\Security\CasUserProvider;
+use Symfony\Component\Security\Core\Exception\UnsupportedUserException;
+use Symfony\Component\Security\Core\Exception\UserNotFoundException;
+use Symfony\Component\Security\Core\User\PasswordUpgraderInterface;
+use Symfony\Component\Security\Core\User\UserInterface;
+
+class CustomUserProvider extends CasUserProvider
+{
+    public function __construct(private CasAttributeStorage $casAttributeStorage, private UserRepository $userRepository, private EntityManagerInterface $entityManagerInterface)
+    {
+        parent::__construct($casAttributeStorage);
+    }
+    public function loadUserByIdentifier(string $identifier): UserInterface
+    {
+        $attributes = $this->casAttributeStorage->getAttributes();
+
+        // try to get user from db
+        $user = $this->userRepository->findOneBy(['username' => $identifier]);
+        // if not found, create a inactive user
+        if (is_null($user)) {
+            $user = new User();
+            $user
+                ->setUsername($identifier)
+                ->setEnabled(0);
+        }
+        if ($user instanceof CasUserInterface) {
+            $user->setCasAttributes($attributes);
+        }
+        $this->computeRoles($user);
+
+        $this->entityManagerInterface->persist($user);
+        $this->entityManagerInterface->flush();
+
+        if (is_null($user)) {
+            throw new UserNotFoundException('Utilisateur introuvable ou desactivé !');
+        }
+
+        return $user;
+    }
+
+    private function computeRoles(User $user)
+    {
+        $attributes = $user->getAttributs();
+        $roles = ['ROLE_USER'];
+        if (isset($attributes['memberof']) && in_array('ADMIN', $attributes['memberof'])) {
+            $roles[] = 'ROLE_ADMIN';
+        }
+        if ($user->getUserIdentifier() == 'darkvador') {
+            $roles[] = 'ROLE_ADMIN';
+        }
+        $user->setRoles($roles);
+    }
+
+    /**
+     * Refreshes the user after being reloaded from the session.
+     *
+     * @return UserInterface
+     */
+    public function refreshUser(UserInterface $user): UserInterface
+    {
+        $user = $this->userRepository->find($user->getUserIdentifier());
+
+        if (is_null($user) || !$user->isEnabled()) {
+            throw new UserNotFoundException('Utilisateur introuvable ou desactivé !');
+        }
+
+        $this->computeRoles($user);
+
+        return $user;
+    }
+
+    public function supportsClass(string $class): bool
+    {
+        return is_subclass_of($class, UserInterface::class) || is_subclass_of($class, CasUserInterface::class);
+    }
+}
+
+```
+
+
 Annotations
 ---
 The Route annotations run if you install this package :
diff --git a/Resources/config/services.yml b/Resources/config/services.yml
index c97729e..031b791 100644
--- a/Resources/config/services.yml
+++ b/Resources/config/services.yml
@@ -10,5 +10,14 @@ services:
     #    public: false
     cas.security.authentication.authenticator:
         class: L3\Bundle\CasGuardBundle\Security\CasAuthenticator
-        arguments: ['%cas%','@event_dispatcher']
+        arguments: ['%cas%','@event_dispatcher',"@cas.security.authentication.attrStorage"]
         public: false
+
+    cas.security.authentication.attrStorage:
+        class: L3\Bundle\CasGuardBundle\Security\CasAttributeStorage
+
+    cas.security.authentication.provider:
+        class: L3\Bundle\CasGuardBundle\Security\CasUserProvider
+        arguments: ["@cas.security.authentication.attrStorage"]
+        public: true
+    
diff --git a/Security/CasAttributeStorage.php b/Security/CasAttributeStorage.php
new file mode 100644
index 0000000..76f6b95
--- /dev/null
+++ b/Security/CasAttributeStorage.php
@@ -0,0 +1,18 @@
+<?php
+
+namespace L3\Bundle\CasGuardBundle\Security;
+
+class CasAttributeStorage
+{
+    private array $attributes = [];
+
+    public function setAttributes(array $attributes): void
+    {
+        $this->attributes = $attributes;
+    }
+
+    public function getAttributes(): array
+    {
+        return $this->attributes;
+    }
+}
diff --git a/Security/CasAuthenticator.php b/Security/CasAuthenticator.php
index 200b67e..d82fe8b 100644
--- a/Security/CasAuthenticator.php
+++ b/Security/CasAuthenticator.php
@@ -10,6 +10,7 @@
 use Symfony\Component\HttpFoundation\Response;
 use Symfony\Component\HttpFoundation\JsonResponse;
 use Symfony\Component\Security\Core\User\UserInterface;
+use L3\Bundle\CasGuardBundle\Security\CasAttributeStorage;
 use Symfony\Component\Security\Http\Authenticator\AbstractAuthenticator;
 use Symfony\Component\Security\Core\Authentication\Token\TokenInterface;
 use Symfony\Component\Security\Core\Exception\AuthenticationException;
@@ -28,7 +29,7 @@ class CasAuthenticator extends AbstractAuthenticator {
      * Process configuration
      * @param array $config
      */
-    public function __construct(array $config = Array(), EventDispatcherInterface $eventDispatcher = null) {
+    public function __construct(array $config = Array(), EventDispatcherInterface $eventDispatcher = null, private CasAttributeStorage $casAttributeStorage ) {
         $this->config = $config;
         $this->eventDispatcher = $eventDispatcher;
     }
@@ -142,6 +143,10 @@ public function authenticate(Request $request): Passport
             } 
         }
 
+        // save attributes to get them in UserProvider
+        $attributes = \phpCAS::getAttributes();
+        $this->casAttributeStorage->setAttributes($attributes);
+		
         $passport = new SelfValidatingPassport(new UserBadge($user), []);        
 
         return $passport;
diff --git a/Security/CasUserProvider.php b/Security/CasUserProvider.php
new file mode 100644
index 0000000..8e74b0d
--- /dev/null
+++ b/Security/CasUserProvider.php
@@ -0,0 +1,61 @@
+<?php
+
+namespace L3\Bundle\CasGuardBundle\Security;
+
+use L3\Bundle\CasGuardBundle\Entity\CasUser;
+use L3\Bundle\CasGuardBundle\Entity\CasUserInterface;
+use Symfony\Component\Security\Core\Exception\UnsupportedUserException;
+use Symfony\Component\Security\Core\Exception\UserNotFoundException;
+use Symfony\Component\Security\Core\User\PasswordUpgraderInterface;
+use Symfony\Component\Security\Core\User\UserInterface;
+use Symfony\Component\Security\Core\User\UserProviderInterface;
+
+
+/**
+ * this is a very basic implementation exemple, use your own "CasUserProvider" or extends this class
+ */
+class CasUserProvider implements UserProviderInterface
+{
+
+    public function __construct(
+        private CasAttributeStorage $casAttributeStorage
+    ) {
+    }
+
+    public function loadUserByIdentifier(string $identifier): UserInterface
+    {
+        $attributes = $this->casAttributeStorage->getAttributes();
+
+        $user = new CasUser($identifier);
+        if ($user instanceof CasUserInterface) {
+            $user->setCasAttributes($attributes);
+
+            $roles = ['ROLE_USER'];
+            if (isset($attributes['memberOf']) && in_array('admin', $attributes['memberOf'])) {
+                $role[] = 'ROLE_AMIN';
+            }
+            $user->setRoles($roles);
+        }
+
+        if (is_null($user)) {
+            throw new UserNotFoundException('Utilisateur introuvable ou desactivé !');
+        }
+
+        return $user;
+    }
+
+    /**
+     * Refreshes the user after being reloaded from the session.
+     *
+     * @return UserInterface
+     */
+    public function refreshUser(UserInterface $user): UserInterface
+    {
+        return $user;
+    }
+
+    public function supportsClass(string $class): bool
+    {
+        return is_subclass_of($class, UserInterface::class) || is_subclass_of($class, CasUserInterface::class);
+    }
+}