diff --git a/config/sidebar.php b/config/sidebar.php
new file mode 100644
index 0000000..15bd7a1
--- /dev/null
+++ b/config/sidebar.php
@@ -0,0 +1,29 @@
+<?php
+
+declare(strict_types=1);
+
+/*
+ * Définition de la sidebar (sections + items). Filtrée par SidebarFilter selon les modules actifs.
+ * Un item porte une clé `module` quand il appartient à un module activable ; sans clé, il est toujours visible.
+ * Les labels sont des clés i18n (sidebar.<domaine>.<item>).
+ */
+return [
+    [
+        'label' => 'sidebar.general.section',
+        'icon'  => 'mdi:view-dashboard-outline',
+        'items' => [
+            ['label' => 'sidebar.general.dashboard', 'to' => '/', 'icon' => 'mdi:view-dashboard-outline'],
+            ['label' => 'sidebar.general.myTasks', 'to' => '/my-tasks', 'icon' => 'mdi:checkbox-marked-circle-outline'],
+            ['label' => 'sidebar.general.projects', 'to' => '/projects', 'icon' => 'mdi:folder-multiple-outline'],
+            ['label' => 'sidebar.general.timeTracking', 'to' => '/time-tracking', 'icon' => 'mdi:clock-outline'],
+        ],
+    ],
+    [
+        'label' => 'sidebar.hr.section',
+        'icon'  => 'mdi:calendar-account-outline',
+        'items' => [
+            ['label' => 'sidebar.hr.absences', 'to' => '/absences', 'icon' => 'mdi:calendar-remove-outline'],
+            ['label' => 'sidebar.hr.teamAbsences', 'to' => '/team-absences', 'icon' => 'mdi:account-group-outline'],
+        ],
+    ],
+];
diff --git a/src/Shared/Domain/Sidebar/SidebarFilter.php b/src/Shared/Domain/Sidebar/SidebarFilter.php
new file mode 100644
index 0000000..e97ca8d
--- /dev/null
+++ b/src/Shared/Domain/Sidebar/SidebarFilter.php
@@ -0,0 +1,40 @@
+<?php
+
+declare(strict_types=1);
+
+namespace App\Shared\Domain\Sidebar;
+
+final class SidebarFilter
+{
+    /**
+     * @param list<array{label:string, icon:string, items: list<array{label:string, to:string, icon:string, module?:string}>}> $sections
+     * @param list<string>                                                                                                     $activeModuleIds
+     *
+     * @return array{sections: list<array{label:string, icon:string, items: list<array{label:string, to:string, icon:string}>}>, disabledRoutes: list<string>}
+     */
+    public static function filter(array $sections, array $activeModuleIds): array
+    {
+        $outSections    = [];
+        $disabledRoutes = [];
+
+        foreach ($sections as $section) {
+            $items = [];
+            foreach ($section['items'] as $item) {
+                $module = $item['module'] ?? null;
+                if (null !== $module && !in_array($module, $activeModuleIds, true)) {
+                    $disabledRoutes[] = $item['to'];
+
+                    continue;
+                }
+
+                $items[] = ['label' => $item['label'], 'to' => $item['to'], 'icon' => $item['icon']];
+            }
+
+            if ([] !== $items) {
+                $outSections[] = ['label' => $section['label'], 'icon' => $section['icon'], 'items' => $items];
+            }
+        }
+
+        return ['sections' => $outSections, 'disabledRoutes' => $disabledRoutes];
+    }
+}
diff --git a/src/Shared/Infrastructure/ApiPlatform/Resource/SidebarResource.php b/src/Shared/Infrastructure/ApiPlatform/Resource/SidebarResource.php
new file mode 100644
index 0000000..c90877e
--- /dev/null
+++ b/src/Shared/Infrastructure/ApiPlatform/Resource/SidebarResource.php
@@ -0,0 +1,34 @@
+<?php
+
+declare(strict_types=1);
+
+namespace App\Shared\Infrastructure\ApiPlatform\Resource;
+
+use ApiPlatform\Metadata\ApiResource;
+use ApiPlatform\Metadata\Get;
+use App\Shared\Infrastructure\ApiPlatform\State\SidebarProvider;
+use Symfony\Component\Serializer\Attribute\Groups;
+
+#[ApiResource(
+    operations: [
+        new Get(
+            uriTemplate: '/sidebar',
+            normalizationContext: ['groups' => ['sidebar:read']],
+            provider: SidebarProvider::class,
+        ),
+    ],
+)]
+final class SidebarResource
+{
+    /**
+     * @var list<array{label:string, icon:string, items: list<array{label:string, to:string, icon:string}>}>
+     */
+    #[Groups(['sidebar:read'])]
+    public array $sections = [];
+
+    /**
+     * @var list<string>
+     */
+    #[Groups(['sidebar:read'])]
+    public array $disabledRoutes = [];
+}
diff --git a/src/Shared/Infrastructure/ApiPlatform/State/SidebarProvider.php b/src/Shared/Infrastructure/ApiPlatform/State/SidebarProvider.php
new file mode 100644
index 0000000..84333d5
--- /dev/null
+++ b/src/Shared/Infrastructure/ApiPlatform/State/SidebarProvider.php
@@ -0,0 +1,37 @@
+<?php
+
+declare(strict_types=1);
+
+namespace App\Shared\Infrastructure\ApiPlatform\State;
+
+use ApiPlatform\Metadata\Operation;
+use ApiPlatform\State\ProviderInterface;
+use App\Shared\Domain\Module\ModuleRegistry;
+use App\Shared\Domain\Sidebar\SidebarFilter;
+use App\Shared\Infrastructure\ApiPlatform\Resource\SidebarResource;
+use Symfony\Component\DependencyInjection\Attribute\Autowire;
+
+final readonly class SidebarProvider implements ProviderInterface
+{
+    public function __construct(
+        #[Autowire('%kernel.project_dir%')]
+        private string $projectDir,
+    ) {}
+
+    public function provide(Operation $operation, array $uriVariables = [], array $context = []): SidebarResource
+    {
+        /** @var list<class-string> $moduleClasses */
+        $moduleClasses = require $this->projectDir.'/config/modules.php';
+
+        /** @var list<array{label:string, icon:string, items: list<array{label:string, to:string, icon:string, module?:string}>}> $sidebar */
+        $sidebar = require $this->projectDir.'/config/sidebar.php';
+
+        $filtered = SidebarFilter::filter($sidebar, ModuleRegistry::ids($moduleClasses));
+
+        $dto                 = new SidebarResource();
+        $dto->sections       = $filtered['sections'];
+        $dto->disabledRoutes = $filtered['disabledRoutes'];
+
+        return $dto;
+    }
+}
diff --git a/tests/Functional/Shared/SidebarEndpointTest.php b/tests/Functional/Shared/SidebarEndpointTest.php
new file mode 100644
index 0000000..55f0628
--- /dev/null
+++ b/tests/Functional/Shared/SidebarEndpointTest.php
@@ -0,0 +1,40 @@
+<?php
+
+declare(strict_types=1);
+
+namespace App\Tests\Functional\Shared;
+
+use App\Entity\User;
+use Symfony\Bundle\FrameworkBundle\Test\WebTestCase;
+
+/**
+ * @internal
+ */
+final class SidebarEndpointTest extends WebTestCase
+{
+    public function testSidebarRequiresAuthentication(): void
+    {
+        $client = self::createClient();
+        $client->request('GET', '/api/sidebar');
+
+        self::assertResponseStatusCodeSame(401);
+    }
+
+    public function testSidebarReturnsSectionsForAuthenticatedUser(): void
+    {
+        $client    = self::createClient();
+        $container = self::getContainer();
+        $em        = $container->get('doctrine.orm.entity_manager');
+
+        $user = $em->getRepository(User::class)->findOneBy(['username' => 'alice']);
+        $client->loginUser($user);
+
+        $client->request('GET', '/api/sidebar');
+
+        self::assertResponseIsSuccessful();
+        $data = json_decode($client->getResponse()->getContent(), true);
+        self::assertArrayHasKey('sections', $data);
+        self::assertArrayHasKey('disabledRoutes', $data);
+        self::assertNotEmpty($data['sections']);
+    }
+}
diff --git a/tests/Unit/Shared/Sidebar/SidebarFilterTest.php b/tests/Unit/Shared/Sidebar/SidebarFilterTest.php
new file mode 100644
index 0000000..22dbf74
--- /dev/null
+++ b/tests/Unit/Shared/Sidebar/SidebarFilterTest.php
@@ -0,0 +1,59 @@
+<?php
+
+declare(strict_types=1);
+
+namespace App\Tests\Unit\Shared\Sidebar;
+
+use App\Shared\Domain\Sidebar\SidebarFilter;
+use PHPUnit\Framework\TestCase;
+
+/**
+ * @internal
+ */
+final class SidebarFilterTest extends TestCase
+{
+    public function testItemWithoutModuleIsAlwaysVisible(): void
+    {
+        $sections = [
+            ['label' => 'sidebar.core.section', 'icon' => 'mdi:home', 'items' => [
+                ['label' => 'sidebar.core.dashboard', 'to' => '/', 'icon' => 'mdi:view-dashboard'],
+            ]],
+        ];
+
+        $result = SidebarFilter::filter($sections, []);
+
+        self::assertCount(1, $result['sections']);
+        self::assertSame('/', $result['sections'][0]['items'][0]['to']);
+        self::assertSame([], $result['disabledRoutes']);
+        self::assertArrayNotHasKey('module', $result['sections'][0]['items'][0]);
+    }
+
+    public function testItemWithInactiveModuleIsHiddenAndRouteDisabled(): void
+    {
+        $sections = [
+            ['label' => 'sidebar.tt.section', 'icon' => 'mdi:clock', 'items' => [
+                ['label' => 'sidebar.tt.timesheet', 'to' => '/time-tracking', 'icon' => 'mdi:clock', 'module' => 'time_tracking'],
+            ]],
+        ];
+
+        $result = SidebarFilter::filter($sections, []);
+
+        self::assertSame([], $result['sections']);
+        self::assertSame(['/time-tracking'], $result['disabledRoutes']);
+    }
+
+    public function testItemWithActiveModuleIsVisible(): void
+    {
+        $sections = [
+            ['label' => 'sidebar.tt.section', 'icon' => 'mdi:clock', 'items' => [
+                ['label' => 'sidebar.tt.timesheet', 'to' => '/time-tracking', 'icon' => 'mdi:clock', 'module' => 'time_tracking'],
+            ]],
+        ];
+
+        $result = SidebarFilter::filter($sections, ['time_tracking']);
+
+        self::assertCount(1, $result['sections']);
+        self::assertSame('/time-tracking', $result['sections'][0]['items'][0]['to']);
+        self::assertSame([], $result['disabledRoutes']);
+    }
+}