diff --git a/lib/composer/composer/autoload_classmap.php b/lib/composer/composer/autoload_classmap.php
index a9c862e2e9b6c..ede6993f4aab3 100644
--- a/lib/composer/composer/autoload_classmap.php
+++ b/lib/composer/composer/autoload_classmap.php
@@ -286,6 +286,11 @@
     'OCP\\Contacts\\ContactsMenu\\IProvider' => $baseDir . '/lib/public/Contacts/ContactsMenu/IProvider.php',
     'OCP\\Contacts\\Events\\ContactInteractedWithEvent' => $baseDir . '/lib/public/Contacts/Events/ContactInteractedWithEvent.php',
     'OCP\\Contacts\\IManager' => $baseDir . '/lib/public/Contacts/IManager.php',
+    'OCP\\ContextChat\\ContentItem' => $baseDir . '/lib/public/ContextChat/ContentItem.php',
+    'OCP\\ContextChat\\Events\\ContentProviderRegisterEvent' => $baseDir . '/lib/public/ContextChat/Events/ContentProviderRegisterEvent.php',
+    'OCP\\ContextChat\\IContentManager' => $baseDir . '/lib/public/ContextChat/IContentManager.php',
+    'OCP\\ContextChat\\IContentProvider' => $baseDir . '/lib/public/ContextChat/IContentProvider.php',
+    'OCP\\ContextChat\\Type\\UpdateAccessOp' => $baseDir . '/lib/public/ContextChat/Type/UpdateAccessOp.php',
     'OCP\\DB\\Events\\AddMissingColumnsEvent' => $baseDir . '/lib/public/DB/Events/AddMissingColumnsEvent.php',
     'OCP\\DB\\Events\\AddMissingIndicesEvent' => $baseDir . '/lib/public/DB/Events/AddMissingIndicesEvent.php',
     'OCP\\DB\\Events\\AddMissingPrimaryKeyEvent' => $baseDir . '/lib/public/DB/Events/AddMissingPrimaryKeyEvent.php',
@@ -1216,6 +1221,7 @@
     'OC\\Contacts\\ContactsMenu\\Providers\\EMailProvider' => $baseDir . '/lib/private/Contacts/ContactsMenu/Providers/EMailProvider.php',
     'OC\\Contacts\\ContactsMenu\\Providers\\LocalTimeProvider' => $baseDir . '/lib/private/Contacts/ContactsMenu/Providers/LocalTimeProvider.php',
     'OC\\Contacts\\ContactsMenu\\Providers\\ProfileProvider' => $baseDir . '/lib/private/Contacts/ContactsMenu/Providers/ProfileProvider.php',
+    'OC\\ContextChat\\ContentManager' => $baseDir . '/lib/private/ContextChat/ContentManager.php',
     'OC\\Core\\AppInfo\\Application' => $baseDir . '/core/AppInfo/Application.php',
     'OC\\Core\\BackgroundJobs\\BackgroundCleanupUpdaterBackupsJob' => $baseDir . '/core/BackgroundJobs/BackgroundCleanupUpdaterBackupsJob.php',
     'OC\\Core\\BackgroundJobs\\CheckForUserCertificates' => $baseDir . '/core/BackgroundJobs/CheckForUserCertificates.php',
diff --git a/lib/composer/composer/autoload_static.php b/lib/composer/composer/autoload_static.php
index 6217566aa716b..27e832438db09 100644
--- a/lib/composer/composer/autoload_static.php
+++ b/lib/composer/composer/autoload_static.php
@@ -327,6 +327,11 @@ class ComposerStaticInit749170dad3f5e7f9ca158f5a9f04f6a2
         'OCP\\Contacts\\ContactsMenu\\IProvider' => __DIR__ . '/../../..' . '/lib/public/Contacts/ContactsMenu/IProvider.php',
         'OCP\\Contacts\\Events\\ContactInteractedWithEvent' => __DIR__ . '/../../..' . '/lib/public/Contacts/Events/ContactInteractedWithEvent.php',
         'OCP\\Contacts\\IManager' => __DIR__ . '/../../..' . '/lib/public/Contacts/IManager.php',
+        'OCP\\ContextChat\\ContentItem' => __DIR__ . '/../../..' . '/lib/public/ContextChat/ContentItem.php',
+        'OCP\\ContextChat\\Events\\ContentProviderRegisterEvent' => __DIR__ . '/../../..' . '/lib/public/ContextChat/Events/ContentProviderRegisterEvent.php',
+        'OCP\\ContextChat\\IContentManager' => __DIR__ . '/../../..' . '/lib/public/ContextChat/IContentManager.php',
+        'OCP\\ContextChat\\IContentProvider' => __DIR__ . '/../../..' . '/lib/public/ContextChat/IContentProvider.php',
+        'OCP\\ContextChat\\Type\\UpdateAccessOp' => __DIR__ . '/../../..' . '/lib/public/ContextChat/Type/UpdateAccessOp.php',
         'OCP\\DB\\Events\\AddMissingColumnsEvent' => __DIR__ . '/../../..' . '/lib/public/DB/Events/AddMissingColumnsEvent.php',
         'OCP\\DB\\Events\\AddMissingIndicesEvent' => __DIR__ . '/../../..' . '/lib/public/DB/Events/AddMissingIndicesEvent.php',
         'OCP\\DB\\Events\\AddMissingPrimaryKeyEvent' => __DIR__ . '/../../..' . '/lib/public/DB/Events/AddMissingPrimaryKeyEvent.php',
@@ -1257,6 +1262,7 @@ class ComposerStaticInit749170dad3f5e7f9ca158f5a9f04f6a2
         'OC\\Contacts\\ContactsMenu\\Providers\\EMailProvider' => __DIR__ . '/../../..' . '/lib/private/Contacts/ContactsMenu/Providers/EMailProvider.php',
         'OC\\Contacts\\ContactsMenu\\Providers\\LocalTimeProvider' => __DIR__ . '/../../..' . '/lib/private/Contacts/ContactsMenu/Providers/LocalTimeProvider.php',
         'OC\\Contacts\\ContactsMenu\\Providers\\ProfileProvider' => __DIR__ . '/../../..' . '/lib/private/Contacts/ContactsMenu/Providers/ProfileProvider.php',
+        'OC\\ContextChat\\ContentManager' => __DIR__ . '/../../..' . '/lib/private/ContextChat/ContentManager.php',
         'OC\\Core\\AppInfo\\Application' => __DIR__ . '/../../..' . '/core/AppInfo/Application.php',
         'OC\\Core\\BackgroundJobs\\BackgroundCleanupUpdaterBackupsJob' => __DIR__ . '/../../..' . '/core/BackgroundJobs/BackgroundCleanupUpdaterBackupsJob.php',
         'OC\\Core\\BackgroundJobs\\CheckForUserCertificates' => __DIR__ . '/../../..' . '/core/BackgroundJobs/CheckForUserCertificates.php',
diff --git a/lib/private/ContextChat/ContentManager.php b/lib/private/ContextChat/ContentManager.php
new file mode 100644
index 0000000000000..3324ce6c7007e
--- /dev/null
+++ b/lib/private/ContextChat/ContentManager.php
@@ -0,0 +1,56 @@
+<?php
+
+declare(strict_types=1);
+
+/**
+ * SPDX-FileCopyrightText: 2024-2025 Nextcloud GmbH and Nextcloud contributors
+ * SPDX-License-Identifier: AGPL-3.0-or-later
+ */
+
+namespace OC\ContextChat;
+
+use OCA\ContextChat\Public\ContentManager as ContextChatContentManager;
+use OCP\ContextChat\IContentManager;
+
+class ContentManager implements IContentManager {
+	public function __construct(
+		private ?ContextChatContentManager $contentManager,
+	) {
+	}
+
+	public function isContextChatAvailable(): bool {
+		return $this->contentManager !== null;
+	}
+
+	public function registerContentProvider(string $appId, string $providerId, string $providerClass): void {
+		$this->contentManager?->registerContentProvider($appId, $providerId, $providerClass);
+	}
+
+	public function collectAllContentProviders(): void {
+		$this->contentManager?->collectAllContentProviders();
+	}
+
+	public function submitContent(string $appId, array $items): void {
+		$this->contentManager?->submitContent($appId, $items);
+	}
+
+	public function updateAccess(string $appId, string $providerId, string $itemId, string $op, array $userIds): void {
+		$this->contentManager?->updateAccess($appId, $providerId, $itemId, $op, $userIds);
+	}
+
+	public function updateAccessProvider(string $appId, string $providerId, string $op, array $userIds): void {
+		$this->contentManager?->updateAccessProvider($appId, $providerId, $op, $userIds);
+	}
+
+	public function updateAccessDeclarative(string $appId, string $providerId, string $itemId, array $userIds): void {
+		$this->contentManager?->updateAccessDeclarative($appId, $providerId, $itemId, $op, $userIds);
+	}
+
+	public function deleteProvider(string $appId, string $providerId): void {
+		$this->contentManager?->deleteProvider($appId, $providerId);
+	}
+
+	public function deleteContent(string $appId, string $providerId, array $itemIds): void {
+		$this->contentManager?->deleteContent($appId, $providerId, $itemIds);
+	}
+}
diff --git a/lib/private/Server.php b/lib/private/Server.php
index 4b88a446405a5..1e1ba2a1ad36d 100644
--- a/lib/private/Server.php
+++ b/lib/private/Server.php
@@ -277,6 +277,8 @@ public function __construct($webRoot, \OC\Config $config) {
 
 		$this->registerAlias(\OCP\Contacts\IManager::class, \OC\ContactsManager::class);
 
+		$this->registerAlias(\OCP\ContextChat\IContentManager::class, \OC\ContextChat\ContentManager::class);
+
 		$this->registerAlias(\OCP\DirectEditing\IManager::class, \OC\DirectEditing\Manager::class);
 		$this->registerAlias(ITemplateManager::class, TemplateManager::class);
 		$this->registerAlias(\OCP\Template\ITemplateManager::class, \OC\Template\TemplateManager::class);
diff --git a/lib/public/ContextChat/ContentItem.php b/lib/public/ContextChat/ContentItem.php
new file mode 100644
index 0000000000000..2b5289ba3506b
--- /dev/null
+++ b/lib/public/ContextChat/ContentItem.php
@@ -0,0 +1,57 @@
+<?php
+
+declare(strict_types=1);
+
+/**
+ * SPDX-FileCopyrightText: 2024-2025 Nextcloud GmbH and Nextcloud contributors
+ * SPDX-License-Identifier: AGPL-3.0-or-later
+ */
+
+namespace OCP\ContextChat;
+
+/**
+ * @since 32.0.0
+ */
+class ContentItem {
+	/**
+	 * @param string $itemId
+	 * @param string $providerId
+	 * @param string $title
+	 * @param string $content
+	 * @param string $documentType
+	 * @param \DateTime $lastModified
+	 * @param string[] $users
+	 * @since 32.0.0
+	 */
+	public function __construct(
+		/**
+		 * @since 32.0.0
+		 */
+		public string $itemId,
+		/**
+		 * @since 32.0.0
+		 */
+		public string $providerId,
+		/**
+		 * @since 32.0.0
+		 */
+		public string $title,
+		/**
+		 * @since 32.0.0
+		 */
+		public string $content,
+		/**
+		 * @since 32.0.0
+		 */
+		public string $documentType,
+		/**
+		 * @since 32.0.0
+		 */
+		public \DateTime $lastModified,
+		/**
+		 * @since 32.0.0
+		 */
+		public array $users,
+	) {
+	}
+}
diff --git a/lib/public/ContextChat/Events/ContentProviderRegisterEvent.php b/lib/public/ContextChat/Events/ContentProviderRegisterEvent.php
new file mode 100644
index 0000000000000..32a542a0dbf5a
--- /dev/null
+++ b/lib/public/ContextChat/Events/ContentProviderRegisterEvent.php
@@ -0,0 +1,35 @@
+<?php
+
+declare(strict_types=1);
+
+/**
+ * SPDX-FileCopyrightText: 2024-2025 Nextcloud GmbH and Nextcloud contributors
+ * SPDX-License-Identifier: AGPL-3.0-or-later
+ */
+
+namespace OCP\ContextChat\Events;
+
+use OCP\ContextChat\IContentManager;
+use OCP\ContextChat\IContentProvider;
+use OCP\EventDispatcher\Event;
+
+/**
+ * @since 32.0.0
+ */
+class ContentProviderRegisterEvent extends Event {
+	public function __construct(
+		private IContentManager $contentManager,
+	) {
+	}
+
+	/**
+	 * @param string $appId
+	 * @param string $providerId
+	 * @param class-string<IContentProvider> $providerClass
+	 * @return void
+	 * @since 32.0.0
+	 */
+	public function registerContentProvider(string $appId, string $providerId, string $providerClass): void {
+		$this->contentManager->registerContentProvider($appId, $providerId, $providerClass);
+	}
+}
diff --git a/lib/public/ContextChat/IContentManager.php b/lib/public/ContextChat/IContentManager.php
new file mode 100644
index 0000000000000..54e4880929115
--- /dev/null
+++ b/lib/public/ContextChat/IContentManager.php
@@ -0,0 +1,115 @@
+<?php
+
+declare(strict_types=1);
+
+/**
+ * SPDX-FileCopyrightText: 2024-2025 Nextcloud GmbH and Nextcloud contributors
+ * SPDX-License-Identifier: AGPL-3.0-or-later
+ */
+
+namespace OCP\ContextChat;
+
+/**
+ * @since 32.0.0
+ */
+interface IContentManager {
+	/**
+	 * Checks if the context chat app is enabled or not
+	 *
+	 * @return bool
+	 * @since 32.0.0
+	 */
+	public function isContextChatAvailable(): bool;
+
+	/**
+	 * @param string $appId
+	 * @param string $providerId
+	 * @param class-string<IContentProvider> $providerClass
+	 * @return void
+	 * @since 32.0.0
+	 */
+	public function registerContentProvider(string $appId, string $providerId, string $providerClass): void;
+
+	/**
+	 * Emits an event to collect all content providers
+	 *
+	 * @return void
+	 * @since 32.0.0
+	 */
+	public function collectAllContentProviders(): void;
+
+	/**
+	 * Providers can use this to submit content for indexing in context chat
+	 *
+	 * @param string $appId
+	 * @param ContentItem[] $items
+	 * @return void
+	 * @since 32.0.0
+	 */
+	public function submitContent(string $appId, array $items): void;
+
+	/**
+	 * Update access for a content item for specified users.
+	 * This modifies the access list for the content item,
+	 * 	allowing or denying access to the specified users.
+	 * If no user has access to the content item, it will be removed from the knowledge base.
+	 *
+	 * @param string $appId
+	 * @param string $providerId
+	 * @param string $itemId
+	 * @param Type\UpdateAccessOp::* $op
+	 * @param array $userIds
+	 * @return void
+	 * @since 32.0.0
+	 */
+	public function updateAccess(string $appId, string $providerId, string $itemId, string $op, array $userIds): void;
+
+	/**
+	 * Update access for content items from the given provider for specified users.
+	 * If no user has access to the content item, it will be removed from the knowledge base.
+	 *
+	 * @param string $appId
+	 * @param string $providerId
+	 * @param Type\UpdateAccessOp::* $op
+	 * @param array $userIds
+	 * @return void
+	 * @since 32.0.0
+	 */
+	public function updateAccessProvider(string $appId, string $providerId, string $op, array $userIds): void;
+
+	/**
+	 * Update access for a content item for specified users declaratively.
+	 * This overwrites the access list for the content item,
+	 * 	allowing only the specified users access to it.
+	 *
+	 * @param string $appId
+	 * @param string $providerId
+	 * @param string $itemId
+	 * @param array $userIds
+	 * @return void
+	 * @since 32.0.0
+	 */
+	public function updateAccessDeclarative(string $appId, string $providerId, string $itemId, array $userIds): void;
+
+	/**
+	 * Delete all content items and access lists for a provider.
+	 * This does not unregister the provider itself.
+	 *
+	 * @param string $appId
+	 * @param string $providerId
+	 * @return void
+	 * @since 32.0.0
+	 */
+	public function deleteProvider(string $appId, string $providerId): void;
+
+	/**
+	 * Remove a content item from the knowledge base of context chat.
+	 *
+	 * @param string $appId
+	 * @param string $providerId
+	 * @param string[] $itemIds
+	 * @return void
+	 * @since 32.0.0
+	 */
+	public function deleteContent(string $appId, string $providerId, array $itemIds): void;
+}
diff --git a/lib/public/ContextChat/IContentProvider.php b/lib/public/ContextChat/IContentProvider.php
new file mode 100644
index 0000000000000..b0c736e3c8855
--- /dev/null
+++ b/lib/public/ContextChat/IContentProvider.php
@@ -0,0 +1,49 @@
+<?php
+
+declare(strict_types=1);
+
+/**
+ * SPDX-FileCopyrightText: 2024-2025 Nextcloud GmbH and Nextcloud contributors
+ * SPDX-License-Identifier: AGPL-3.0-or-later
+ */
+
+namespace OCP\ContextChat;
+
+/**
+ * This interface defines methods to implement a content provider
+ * @since 32.0.0
+ */
+interface IContentProvider {
+	/**
+	 * The ID of the provider
+	 *
+	 * @return string
+	 * @since 32.0.0
+	 */
+	public function getId(): string;
+
+	/**
+	 * The ID of the app making the provider avaialble
+	 *
+	 * @return string
+	 * @since 32.0.0
+	 */
+	public function getAppId(): string;
+
+	/**
+	 * The absolute URL to the content item
+	 *
+	 * @param string $id
+	 * @return string
+	 * @since 32.0.0
+	 */
+	public function getItemUrl(string $id): string;
+
+	/**
+	 * Starts the initial import of content items into context chat
+	 *
+	 * @return void
+	 * @since 32.0.0
+	 */
+	public function triggerInitialImport(): void;
+}
diff --git a/lib/public/ContextChat/Type/UpdateAccessOp.php b/lib/public/ContextChat/Type/UpdateAccessOp.php
new file mode 100644
index 0000000000000..65100d1ce8363
--- /dev/null
+++ b/lib/public/ContextChat/Type/UpdateAccessOp.php
@@ -0,0 +1,18 @@
+<?php
+
+declare(strict_types=1);
+
+/**
+ * SPDX-FileCopyrightText: 2024-2025 Nextcloud GmbH and Nextcloud contributors
+ * SPDX-License-Identifier: AGPL-3.0-or-later
+ */
+
+namespace OCP\ContextChat\Type;
+
+/**
+ * @since 32.0.0
+ */
+class UpdateAccessOp {
+	public const ALLOW = 'allow';
+	public const DENY = 'deny';
+}
diff --git a/psalm.xml b/psalm.xml
index 8fd8dfca7eda7..85aca9df3ecfc 100644
--- a/psalm.xml
+++ b/psalm.xml
@@ -106,6 +106,7 @@
 				<referencedClass name="OCA\Circles\Exceptions\CircleNotFoundException"/>
 				<referencedClass name="OCA\Circles\Model\Circle"/>
 				<referencedClass name="OCA\Circles\Model\Member"/>
+				<referencedClass name="OCA\ContextChat\Public\ContentManager"/>
 				<referencedClass name="OCA\GroupFolders\Mount\GroupFolderStorage"/>
 				<referencedClass name="OCA\TwoFactorNextcloudNotification\Controller\APIController"/>
 				<referencedClass name="OCA\GlobalSiteSelector\Service\SlaveService"/>