diff --git a/src/Module/Api/Mastodon/Timelines/ListTimeline.php b/src/Module/Api/Mastodon/Timelines/ListTimeline.php
new file mode 100644
index 0000000000..df5c211220
--- /dev/null
+++ b/src/Module/Api/Mastodon/Timelines/ListTimeline.php
@@ -0,0 +1,91 @@
+<?php
+/**
+ * @copyright Copyright (C) 2010-2021, the Friendica project
+ *
+ * @license GNU AGPL version 3 or any later version
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as
+ * published by the Free Software Foundation, either version 3 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ *
+ */
+
+namespace Friendica\Module\Api\Mastodon\Timelines;
+
+use Friendica\Core\System;
+use Friendica\Database\DBA;
+use Friendica\DI;
+use Friendica\Model\Post;
+use Friendica\Module\BaseApi;
+use Friendica\Network\HTTPException;
+
+/**
+ * @see https://docs.joinmastodon.org/methods/timelines/
+ */
+class ListTimeline extends BaseApi
+{
+	/**
+	 * @param array $parameters
+	 * @throws HTTPException\InternalServerErrorException
+	 */
+	public static function rawContent(array $parameters = [])
+	{
+		self::login();
+		$uid = self::getCurrentUserID();
+
+		if (empty($parameters['id'])) {
+			DI::mstdnError()->RecordNotFound();
+		}
+
+		// Return results older than id
+		$max_id = (int)!isset($_REQUEST['max_id']) ? 0 : $_REQUEST['max_id'];
+		// Return results newer than id
+		$since_id = (int)!isset($_REQUEST['since_id']) ? 0 : $_REQUEST['since_id'];
+		// Return results immediately newer than id
+		$min_id = (int)!isset($_REQUEST['min_id']) ? 0 : $_REQUEST['min_id'];
+		// Maximum number of results to return. Defaults to 20.
+		$limit = (int)!isset($_REQUEST['limit']) ? 20 : $_REQUEST['limit'];
+
+		$params = ['order' => ['uri-id' => true], 'limit' => $limit];
+
+		$condition = ["`uid` = ? AND `gravity` IN (?, ?) AND `contact-id` IN (SELECT `contact-id` FROM `group_member` WHERE `gid` = ?)",
+			$uid, GRAVITY_PARENT, GRAVITY_COMMENT, $parameters['id']];
+
+		if (!empty($max_id)) {
+			$condition = DBA::mergeConditions($condition, ["`uri-id` < ?", $max_id]);
+		}
+
+		if (!empty($since_id)) {
+			$condition = DBA::mergeConditions($condition, ["`uri-id` > ?", $since_id]);
+		}
+
+		if (!empty($min_id)) {
+			$condition = DBA::mergeConditions($condition, ["`uri-id` > ?", $min_id]);
+
+			$params['order'] = ['uri-id'];
+		}
+
+		$items = Post::selectForUser($uid, ['uri-id'], $condition, $params);
+
+		$statuses = [];
+		while ($item = Post::fetch($items)) {
+			$statuses[] = DI::mstdnStatus()->createFromUriId($item['uri-id'], $uid);
+		}
+		DBA::close($items);
+
+		if (!empty($min_id)) {
+			array_reverse($statuses);
+		}
+
+		System::jsonExit($statuses);
+	}
+}
diff --git a/static/routes.config.php b/static/routes.config.php
index dd09a99dfc..ff90dd9d58 100644
--- a/static/routes.config.php
+++ b/static/routes.config.php
@@ -143,7 +143,7 @@ return [
 			'/suggestions'                       => [Module\Api\Mastodon\Unimplemented::class,            [R::GET         ]],
 			'/suggestions/{id:\d+}'              => [Module\Api\Mastodon\Unimplemented::class,            [R::DELETE      ]],
 			'/timelines/home'                    => [Module\Api\Mastodon\Timelines\Home::class,           [R::GET         ]],
-			'/timelines/list/{id:\d+}'           => [Module\Api\Mastodon\Unimplemented::class,            [R::GET         ]],
+			'/timelines/list/{id:\d+}'           => [Module\Api\Mastodon\Timelines\ListTimeline::class,   [R::GET         ]],
 			'/timelines/public'                  => [Module\Api\Mastodon\Timelines\PublicTimeline::class, [R::GET         ]],
 			'/timelines/tag/{hashtag}'           => [Module\Api\Mastodon\Timelines\Tag::class,            [R::GET         ]],
 			'/trends'                            => [Module\Api\Mastodon\Trends::class,                   [R::GET         ]],