diff --git a/doc/API-Mastodon.md b/doc/API-Mastodon.md
index b09ecca8af..ab5b5dbbb0 100644
--- a/doc/API-Mastodon.md
+++ b/doc/API-Mastodon.md
@@ -104,24 +104,26 @@ These endpoints use the [Mastodon API entities](https://docs.joinmastodon.org/en
 - [`DELETE /api/v1/scheduled_statuses/:id`](https://docs.joinmastodon.org/methods/statuses/scheduled_statuses/)
 - [`GET /api/v1/scheduled_statuses/:id`](https://docs.joinmastodon.org/methods/statuses/scheduled_statuses/)
 - [`GET /api/v1/search`](https://docs.joinmastodon.org/methods/search/)
-- [`POST /api/v1/statuses`](https://docs.joinmastodon.org/methods/statuses/)
+- [`POST /api/v1/statuses`](https://docs.joinmastodon.org/methods/statuses/#create)
     - Additionally to the static values `public`, `unlisted` and `private`, the `visibility` parameter can contain a numeric value with a group id.
-- [`GET /api/v1/statuses/:id`](https://docs.joinmastodon.org/methods/statuses/)
-- [`DELETE /api/v1/statuses/:id`](https://docs.joinmastodon.org/methods/statuses/)
-- [`GET /api/v1/statuses/:id/card`](https://docs.joinmastodon.org/methods/statuses/)
-- [`GET /api/v1/statuses/:id/context`](https://docs.joinmastodon.org/methods/statuses/)
-- [`GET /api/v1/statuses/:id/reblogged_by`](https://docs.joinmastodon.org/methods/statuses/)
-- [`GET /api/v1/statuses/:id/favourited_by`](https://docs.joinmastodon.org/methods/statuses/)
-- [`POST /api/v1/statuses/:id/favourite`](https://docs.joinmastodon.org/methods/statuses/)
-- [`POST /api/v1/statuses/:id/unfavourite`](https://docs.joinmastodon.org/methods/statuses/)
-- [`POST /api/v1/statuses/:id/reblog`](https://docs.joinmastodon.org/methods/statuses/)
-- [`POST /api/v1/statuses/:id/unreblog`](https://docs.joinmastodon.org/methods/statuses/)
-- [`POST /api/v1/statuses/:id/bookmark`](https://docs.joinmastodon.org/methods/statuses/)
-- [`POST /api/v1/statuses/:id/unbookmark`](https://docs.joinmastodon.org/methods/statuses/)
-- [`POST /api/v1/statuses/:id/mute`](https://docs.joinmastodon.org/methods/statuses/)
-- [`POST /api/v1/statuses/:id/unmute`](https://docs.joinmastodon.org/methods/statuses/)
-- [`POST /api/v1/statuses/:id/pin`](https://docs.joinmastodon.org/methods/statuses/)
-- [`POST /api/v1/statuses/:id/unpin`](https://docs.joinmastodon.org/methods/statuses/)
+- [`GET /api/v1/statuses/:id`](https://docs.joinmastodon.org/methods/statuses/#get)
+- [`DELETE /api/v1/statuses/:id`](https://docs.joinmastodon.org/methods/statuses/#delete)
+- [`GET /api/v1/statuses/:id/context`](https://docs.joinmastodon.org/methods/statuses/#context)
+- [`GET /api/v1/statuses/:id/reblogged_by`](https://docs.joinmastodon.org/methods/statuses/#reblogged_by)
+- [`GET /api/v1/statuses/:id/favourited_by`](https://docs.joinmastodon.org/methods/statuses/#favourited_by)
+- [`POST /api/v1/statuses/:id/favourite`](https://docs.joinmastodon.org/methods/statuses/#favourite)
+- [`POST /api/v1/statuses/:id/unfavourite`](https://docs.joinmastodon.org/methods/statuses/#unfavourite)
+- [`POST /api/v1/statuses/:id/reblog`](https://docs.joinmastodon.org/methods/statuses/#boost)
+- [`POST /api/v1/statuses/:id/unreblog`](https://docs.joinmastodon.org/methods/statuses/#unreblog)
+- [`POST /api/v1/statuses/:id/bookmark`](https://docs.joinmastodon.org/methods/statuses/#bookmark)
+- [`POST /api/v1/statuses/:id/unbookmark`](https://docs.joinmastodon.org/methods/statuses/#unbookmark)
+- [`POST /api/v1/statuses/:id/mute`](https://docs.joinmastodon.org/methods/statuses/#mute)
+- [`POST /api/v1/statuses/:id/unmute`](https://docs.joinmastodon.org/methods/statuses/#unmute)
+- [`POST /api/v1/statuses/:id/pin`](https://docs.joinmastodon.org/methods/statuses/#pin)
+- [`POST /api/v1/statuses/:id/unpin`](https://docs.joinmastodon.org/methods/statuses/#unpin)
+- [`POST /api/v1/statuses/:id`](https://docs.joinmastodon.org/methods/statuses/#edit)
+- [`GET /api/v1/statuses/:id/source`](https://docs.joinmastodon.org/methods/statuses/#source)
+- [`GET /api/v1/statuses/:id/card`](https://docs.joinmastodon.org/methods/statuses/#card)
 - [`GET /api/v1/suggestions`](https://docs.joinmastodon.org/methods/accounts/suggestions/)
 - [`GET /api/v1/timelines/direct`](https://docs.joinmastodon.org/methods/timelines/)
 - [`GET /api/v1/timelines/home`](https://docs.joinmastodon.org/methods/timelines/)
@@ -144,7 +146,6 @@ These emdpoints are planned to be implemented somewhere in the future.
 - [`GET /api/v1/trends/statuses`](https://github.com/mastodon/mastodon/pull/17431)
 - [`GET /api/v1/trends/tags`](https://github.com/mastodon/mastodon/pull/16917)
 - [`POST /api/v1/polls/:id/votes`](https://docs.joinmastodon.org/methods/statuses/polls/)
-- [`GET /api/v1/statuses/{id:\d+}/source`](https://github.com/mastodon/mastodon/pull/16697)
 - [`GET /api/v1/featured_tags`](https://docs.joinmastodon.org/methods/accounts/featured_tags/)
 - [`POST /api/v1/featured_tags`](https://docs.joinmastodon.org/methods/accounts/featured_tags/)
 - [`DELETE /api/v1/featured_tags/:id`](https://docs.joinmastodon.org/methods/accounts/featured_tags/)
diff --git a/src/DI.php b/src/DI.php
index 0b5c9c0558..3a8a9b6d24 100644
--- a/src/DI.php
+++ b/src/DI.php
@@ -379,6 +379,14 @@ abstract class DI
 		return self::$dice->create(Factory\Api\Mastodon\Status::class);
 	}
 
+	/**
+	 * @return Factory\Api\Mastodon\StatusSource
+	 */
+	public static function mstdnStatusSource()
+	{
+		return self::$dice->create(Factory\Api\Mastodon\StatusSource::class);
+	}
+
 	/**
 	 * @return Factory\Api\Mastodon\ScheduledStatus
 	 */
diff --git a/src/Factory/Api/Mastodon/StatusSource.php b/src/Factory/Api/Mastodon/StatusSource.php
new file mode 100644
index 0000000000..7f00543fbb
--- /dev/null
+++ b/src/Factory/Api/Mastodon/StatusSource.php
@@ -0,0 +1,48 @@
+<?php
+/**
+ * @copyright Copyright (C) 2010-2022, 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\Factory\Api\Mastodon;
+
+use Friendica\BaseFactory;
+use Friendica\Content\Text\BBCode;
+use Friendica\Core\Protocol;
+use Friendica\Model\Post;
+use Friendica\Network\HTTPException;
+
+class StatusSource extends BaseFactory
+{
+	/**
+	 * @param int $uriId Uri-ID of the item
+	 *
+	 * @return \Friendica\Object\Api\Mastodon\StatusSource
+	 * @throws HTTPException\InternalServerErrorException
+	 * @throws \ImagickException*@throws \Exception
+	 */
+	public function createFromUriId(int $uriId, int $uid): \Friendica\Object\Api\Mastodon\StatusSource
+	{
+		$post = Post::selectFirst(['uri-id', 'raw-body', 'body', 'title'], ['uri-id' => $uriId, 'uid' => [0, $uid]]);
+
+		$spoiler_text = $post['title'] ?: BBCode::toPlaintext(BBCode::getAbstract($post['body'], Protocol::ACTIVITYPUB));
+		$body         = BBCode::toMarkdown($post['body']);
+
+		return new \Friendica\Object\Api\Mastodon\StatusSource($post['uri-id'], $body, $spoiler_text);
+	}
+}
diff --git a/src/Module/Api/Mastodon/Statuses.php b/src/Module/Api/Mastodon/Statuses.php
index 7fe369d00e..b2479da08e 100644
--- a/src/Module/Api/Mastodon/Statuses.php
+++ b/src/Module/Api/Mastodon/Statuses.php
@@ -21,7 +21,6 @@
 
 namespace Friendica\Module\Api\Mastodon;
 
-use Friendica\App\Router;
 use Friendica\Content\Text\Markdown;
 use Friendica\Core\Protocol;
 use Friendica\Core\System;
@@ -35,6 +34,7 @@ use Friendica\Model\Photo;
 use Friendica\Model\Post;
 use Friendica\Model\User;
 use Friendica\Module\BaseApi;
+use Friendica\Network\HTTPException;
 use Friendica\Protocol\Activity;
 use Friendica\Util\Images;
 
@@ -48,7 +48,47 @@ class Statuses extends BaseApi
 		self::checkAllowedScope(self::SCOPE_WRITE);
 		$uid = self::getCurrentUserID();
 
-		$this->response->unsupported(Router::PUT, $request);
+		$request = $this->getRequest([
+			'status'         => '',    // Text content of the status. If media_ids is provided, this becomes optional. Attaching a poll is optional while status is provided.
+			'in_reply_to_id' => 0,     // ID of the status being replied to, if status is a reply
+			'spoiler_text'   => '',    // Text to be shown as a warning or subject before the actual content. Statuses are generally collapsed behind this field.
+			'language'       => '',    // ISO 639 language code for this status.
+		], $request);
+
+		$owner = User::getOwnerDataById($uid);
+
+		$condition = [
+			'uid'        => $uid,
+			'uri-id'     => $this->parameters['id'],
+			'contact-id' => $owner['id'],
+			'author-id'  => Contact::getPublicIdByUserId($uid),
+			'origin'     => true,
+		];
+
+		$post = Post::selectFirst(['uri-id', 'id'], $condition);
+		if (empty($post['id'])) {
+			throw new HTTPException\NotFoundException('Item with URI ID ' . $this->parameters['id'] . ' not found for user ' . $uid . '.');
+		}
+
+		// The imput is defined as text. So we can use Markdown for some enhancements
+		$item = ['body' => Markdown::toBBCode($request['status']), 'app' => $this->getApp()];
+
+		if (!empty($request['language'])) {
+			$item['language'] = json_encode([$request['language'] => 1]);
+		}
+
+		if (!empty($request['spoiler_text'])) {
+			if ($request['in_reply_to_id'] != $post['uri-id']) {
+				$item['body'] = '[abstract=' . Protocol::ACTIVITYPUB . ']' . $request['spoiler_text'] . "[/abstract]\n" . $item['body'];
+			} else {
+				$item['title'] = $request['spoiler_text'];
+			}
+		}
+
+		Item::update($item, ['id' => $post['id']]);
+		Item::updateDisplayCache($post['uri-id']);
+
+		System::jsonExit(DI::mstdnStatus()->createFromUriId($post['uri-id'], $uid));
 	}
 
 	protected function post(array $request = [])
@@ -80,14 +120,7 @@ class Statuses extends BaseApi
 		$item['contact-id'] = $owner['id'];
 		$item['author-id']  = $item['owner-id'] = Contact::getPublicIdByUserId($uid);
 		$item['body']       = $body;
-
-		if (!empty(self::getCurrentApplication()['name'])) {
-			$item['app'] = self::getCurrentApplication()['name'];
-		}
-
-		if (empty($item['app'])) {
-			$item['app'] = 'API';
-		}
+		$item['app']        = $this->getApp();
 
 		switch ($request['visibility']) {
 			case 'public':
@@ -257,4 +290,13 @@ class Statuses extends BaseApi
 
 		System::jsonExit(DI::mstdnStatus()->createFromUriId($this->parameters['id'], $uid));
 	}
+
+	private function getApp(): string
+	{
+		if (!empty(self::getCurrentApplication()['name'])) {
+			return self::getCurrentApplication()['name'];
+		} else {
+			return 'API';
+		}
+	}
 }
diff --git a/src/Module/Api/Mastodon/Statuses/Source.php b/src/Module/Api/Mastodon/Statuses/Source.php
new file mode 100644
index 0000000000..22fdd2faeb
--- /dev/null
+++ b/src/Module/Api/Mastodon/Statuses/Source.php
@@ -0,0 +1,57 @@
+<?php
+/**
+ * @copyright Copyright (C) 2010-2022, 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\Statuses;
+
+use Friendica\Core\System;
+use Friendica\DI;
+use Friendica\Model\Post;
+use Friendica\Module\BaseApi;
+use Friendica\Network\HTTPException;
+
+/**
+ * @see https://docs.joinmastodon.org/methods/statuses/#source
+ */
+class Source extends BaseApi
+{
+	/**
+	 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
+	 */
+	protected function rawContent(array $request = [])
+	{
+		self::checkAllowedScope(self::SCOPE_READ);
+		$uid = self::getCurrentUserID();
+
+		if (empty($this->parameters['id'])) {
+			DI::mstdnError()->UnprocessableEntity();
+		}
+
+		$id = $this->parameters['id'];
+
+		if (!Post::exists(['uri-id' => $id, 'uid' => [0, $uid]])) {
+			throw new HTTPException\NotFoundException('Item with URI ID ' . $id . ' not found' . ($uid ? ' for user ' . $uid : '.'));
+		}
+
+		$source = DI::mstdnStatusSource()->createFromUriId($id, $uid);
+
+		System::jsonExit($source->toArray());
+	}
+}
diff --git a/src/Object/Api/Mastodon/StatusSource.php b/src/Object/Api/Mastodon/StatusSource.php
new file mode 100644
index 0000000000..dfe73b7600
--- /dev/null
+++ b/src/Object/Api/Mastodon/StatusSource.php
@@ -0,0 +1,54 @@
+<?php
+/**
+ * @copyright Copyright (C) 2010-2022, 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\Object\Api\Mastodon;
+
+use Friendica\BaseDataTransferObject;
+
+/**
+ * Class StatusSource
+ *
+ * @see https://docs.joinmastodon.org/entities/StatusSource/
+ */
+class StatusSource extends BaseDataTransferObject
+{
+	/** @var string */
+	protected $id;
+	/** @var string */
+	protected $text;
+	/** @var string */
+	protected $spoiler_text = "";
+
+	/**
+	 * Creates a source record from an post array.
+	 *
+	 * @param integer $id
+	 * @param string $text
+	 * @param string $spoiler_text
+	 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
+	 */
+	public function __construct(int $id, string $text, string $spoiler_text)
+	{
+		$this->id           = (string)$id;
+		$this->text         = $text;
+		$this->spoiler_text = $spoiler_text;
+	}
+}
diff --git a/static/routes.config.php b/static/routes.config.php
index 13c8737187..ae57557117 100644
--- a/static/routes.config.php
+++ b/static/routes.config.php
@@ -277,7 +277,7 @@ return [
 			'/statuses/{id:\d+}/pin'             => [Module\Api\Mastodon\Statuses\Pin::class,             [        R::POST]],
 			'/statuses/{id:\d+}/unpin'           => [Module\Api\Mastodon\Statuses\Unpin::class,           [        R::POST]],
 			'/statuses/{id:\d+}/history'         => [Module\Api\Mastodon\Unimplemented::class,            [R::GET         ]], // not implemented
-			'/statuses/{id:\d+}/source'          => [Module\Api\Mastodon\Unimplemented::class,            [R::GET         ]], // not implemented
+			'/statuses/{id:\d+}/source'          => [Module\Api\Mastodon\Statuses\Source::class,          [R::GET         ]],
 			'/streaming/direct'                  => [Module\Api\Mastodon\Unimplemented::class,            [R::GET         ]], // not implemented
 			'/streaming/hashtag'                 => [Module\Api\Mastodon\Unimplemented::class,            [R::GET         ]], // not implemented
 			'/streaming/hashtag/local'           => [Module\Api\Mastodon\Unimplemented::class,            [R::GET         ]], // not implemented