diff --git a/apps/dav/lib/CalDAV/CalendarImpl.php b/apps/dav/lib/CalDAV/CalendarImpl.php
index 4084dec762449..0fdb0dc34516b 100644
--- a/apps/dav/lib/CalDAV/CalendarImpl.php
+++ b/apps/dav/lib/CalDAV/CalendarImpl.php
@@ -12,6 +12,7 @@
 use OCA\DAV\CalDAV\InvitationResponse\InvitationResponseServer;
 use OCP\Calendar\Exceptions\CalendarException;
 use OCP\Calendar\ICalendarIsEnabled;
+use OCP\Calendar\ICalendarIsPublic;
 use OCP\Calendar\ICreateFromString;
 use OCP\Calendar\IHandleImipMessage;
 use OCP\Constants;
@@ -25,7 +26,7 @@
 use Sabre\VObject\Reader;
 use function Sabre\Uri\split as uriSplit;
 
-class CalendarImpl implements ICreateFromString, IHandleImipMessage, ICalendarIsEnabled {
+class CalendarImpl implements ICreateFromString, IHandleImipMessage, ICalendarIsEnabled, ICalendarIsPublic {
 	private CalDavBackend $backend;
 	private Calendar $calendar;
 	/** @var array<string, mixed> */
@@ -147,6 +148,13 @@ public function isDeleted(): bool {
 		return $this->calendar->isDeleted();
 	}
 
+	/**
+	 * @since 33.0.1, 32.0.7, 31.0.14.1, 30.0.17.8
+	 */
+	public function getPublicToken(): ?string {
+		return $this->calendar->getPublishStatus() ?: null;
+	}
+
 	/**
 	 * Create a new calendar event for this calendar
 	 * by way of an ICS string
diff --git a/apps/dav/tests/unit/CalDAV/CalendarImplTest.php b/apps/dav/tests/unit/CalDAV/CalendarImplTest.php
index 87b515ca5f31a..7366355c92020 100644
--- a/apps/dav/tests/unit/CalDAV/CalendarImplTest.php
+++ b/apps/dav/tests/unit/CalDAV/CalendarImplTest.php
@@ -38,7 +38,7 @@ protected function setUp(): void {
 
 		$this->calendar = $this->createMock(Calendar::class);
 		$this->calendarInfo = [
-			'id' => 'fancy_id_123',
+			'id' => 123,
 			'{DAV:}displayname' => 'user readable name 123',
 			'{http://apple.com/ns/ical/}calendar-color' => '#AABBCC',
 			'uri' => '/this/is/a/uri'
@@ -51,7 +51,7 @@ protected function setUp(): void {
 
 
 	public function testGetKey(): void {
-		$this->assertEquals($this->calendarImpl->getKey(), 'fancy_id_123');
+		$this->assertEquals($this->calendarImpl->getKey(), '123');
 	}
 
 	public function testGetDisplayname(): void {
@@ -62,6 +62,18 @@ public function testGetDisplayColor(): void {
 		$this->assertEquals($this->calendarImpl->getDisplayColor(), '#AABBCC');
 	}
 
+	public function testGetPublicToken(): void {
+		$publicToken = $this->calendar->setPublishStatus(true);
+
+		$this->assertEquals($this->calendarImpl->getPublicToken(), $publicToken);
+	}
+
+	public function testGetPublicTokenWithPrivateCalendar(): void {
+		$this->calendar->setPublishStatus(false);
+
+		$this->assertNull($this->calendarImpl->getPublicToken());
+	}
+
 	public function testSearch(): void {
 		$this->backend->expects($this->once())
 			->method('search')
diff --git a/lib/composer/composer/autoload_classmap.php b/lib/composer/composer/autoload_classmap.php
index f939c37bcde9d..c5a058b2389d7 100644
--- a/lib/composer/composer/autoload_classmap.php
+++ b/lib/composer/composer/autoload_classmap.php
@@ -164,6 +164,7 @@
     'OCP\\Calendar\\Exceptions\\CalendarException' => $baseDir . '/lib/public/Calendar/Exceptions/CalendarException.php',
     'OCP\\Calendar\\ICalendar' => $baseDir . '/lib/public/Calendar/ICalendar.php',
     'OCP\\Calendar\\ICalendarIsEnabled' => $baseDir . '/lib/public/Calendar/ICalendarIsEnabled.php',
+    'OCP\\Calendar\\ICalendarIsPublic' => $baseDir . '/lib/public/Calendar/ICalendarIsPublic.php',
     'OCP\\Calendar\\ICalendarProvider' => $baseDir . '/lib/public/Calendar/ICalendarProvider.php',
     'OCP\\Calendar\\ICalendarQuery' => $baseDir . '/lib/public/Calendar/ICalendarQuery.php',
     'OCP\\Calendar\\ICreateFromString' => $baseDir . '/lib/public/Calendar/ICreateFromString.php',
diff --git a/lib/composer/composer/autoload_static.php b/lib/composer/composer/autoload_static.php
index 2f51c414c64aa..76f917ec448f5 100644
--- a/lib/composer/composer/autoload_static.php
+++ b/lib/composer/composer/autoload_static.php
@@ -197,6 +197,7 @@ class ComposerStaticInit749170dad3f5e7f9ca158f5a9f04f6a2
         'OCP\\Calendar\\Exceptions\\CalendarException' => __DIR__ . '/../../..' . '/lib/public/Calendar/Exceptions/CalendarException.php',
         'OCP\\Calendar\\ICalendar' => __DIR__ . '/../../..' . '/lib/public/Calendar/ICalendar.php',
         'OCP\\Calendar\\ICalendarIsEnabled' => __DIR__ . '/../../..' . '/lib/public/Calendar/ICalendarIsEnabled.php',
+        'OCP\\Calendar\\ICalendarIsPublic' => __DIR__ . '/../../..' . '/lib/public/Calendar/ICalendarIsPublic.php',
         'OCP\\Calendar\\ICalendarProvider' => __DIR__ . '/../../..' . '/lib/public/Calendar/ICalendarProvider.php',
         'OCP\\Calendar\\ICalendarQuery' => __DIR__ . '/../../..' . '/lib/public/Calendar/ICalendarQuery.php',
         'OCP\\Calendar\\ICreateFromString' => __DIR__ . '/../../..' . '/lib/public/Calendar/ICreateFromString.php',
diff --git a/lib/public/Calendar/ICalendarIsPublic.php b/lib/public/Calendar/ICalendarIsPublic.php
new file mode 100644
index 0000000000000..1cf66de2ddcdc
--- /dev/null
+++ b/lib/public/Calendar/ICalendarIsPublic.php
@@ -0,0 +1,21 @@
+<?php
+
+declare(strict_types=1);
+
+/**
+ * SPDX-FileCopyrightText: 2026 Nextcloud GmbH and Nextcloud contributors
+ * SPDX-License-Identifier: AGPL-3.0-or-later
+ */
+namespace OCP\Calendar;
+
+/**
+ * @since 33.0.1, 32.0.7, 31.0.14.1, 30.0.17.8
+ */
+interface ICalendarIsPublic {
+	/**
+	 * Gets the token of a publicly shared calendar.
+	 *
+	 * @since 33.0.1, 32.0.7, 31.0.14.1, 30.0.17.8
+	 */
+	public function getPublicToken(): ?string;
+}