diff --git a/lib/private/App/AppStore/Fetcher/AppFetcher.php b/lib/private/App/AppStore/Fetcher/AppFetcher.php
index badc4edb444bc..84ca35439fcf0 100644
--- a/lib/private/App/AppStore/Fetcher/AppFetcher.php
+++ b/lib/private/App/AppStore/Fetcher/AppFetcher.php
@@ -66,7 +66,6 @@ public function __construct(Factory $appDataFactory,
 		);
 
 		$this->fileName = 'apps.json';
-		$this->setEndpoint();
 		$this->compareVersion = $compareVersion;
 		$this->ignoreMaxVersion = true;
 	}
@@ -141,10 +140,6 @@ protected function fetch($ETag, $content) {
 		return $response;
 	}
 
-	private function setEndpoint() {
-		$this->endpointUrl = 'https://apps.nextcloud.com/api/v1/apps.json';
-	}
-
 	/**
 	 * @param string $version
 	 * @param string $fileName
diff --git a/lib/private/App/AppStore/Fetcher/CategoryFetcher.php b/lib/private/App/AppStore/Fetcher/CategoryFetcher.php
index f2c523df908c4..79e350f593dd3 100644
--- a/lib/private/App/AppStore/Fetcher/CategoryFetcher.php
+++ b/lib/private/App/AppStore/Fetcher/CategoryFetcher.php
@@ -53,6 +53,5 @@ public function __construct(Factory $appDataFactory,
 			$logger
 		);
 		$this->fileName = 'categories.json';
-		$this->endpointUrl = 'https://apps.nextcloud.com/api/v1/categories.json';
 	}
 }
diff --git a/lib/private/App/AppStore/Fetcher/Fetcher.php b/lib/private/App/AppStore/Fetcher/Fetcher.php
index db8c38ac68683..a9fba4382fcd8 100644
--- a/lib/private/App/AppStore/Fetcher/Fetcher.php
+++ b/lib/private/App/AppStore/Fetcher/Fetcher.php
@@ -54,8 +54,6 @@ abstract class Fetcher {
 	/** @var string */
 	protected $fileName;
 	/** @var string */
-	protected $endpointUrl;
-	/** @var string */
 	protected $version;
 	/** @var string */
 	protected $channel;
@@ -105,7 +103,7 @@ protected function fetch($ETag, $content) {
 		}
 
 		$client = $this->clientService->newClient();
-		$response = $client->get($this->endpointUrl, $options);
+		$response = $client->get($this->getEndpoint(), $options);
 
 		$responseJson = [];
 		if ($response->getStatusCode() === Http::STATUS_NOT_MODIFIED) {
@@ -218,4 +216,8 @@ protected function getChannel() {
 	public function setChannel(string $channel) {
 		$this->channel = $channel;
 	}
+
+	protected function getEndpoint(): string {
+		return $this->config->getSystemValue('appstoreurl', 'https://apps.nextcloud.com/api/v1') . '/' . $this->fileName;
+	}
 }
diff --git a/tests/lib/App/AppStore/Fetcher/AppFetcherTest.php b/tests/lib/App/AppStore/Fetcher/AppFetcherTest.php
index 214f652742b03..425ee60203210 100644
--- a/tests/lib/App/AppStore/Fetcher/AppFetcherTest.php
+++ b/tests/lib/App/AppStore/Fetcher/AppFetcherTest.php
@@ -92,6 +92,8 @@ public function testGetWithFilter() {
 					return true;
 				} else if ($key === 'version') {
 					return '11.0.0.2';
+				} else if ($key === 'appstoreurl' && $default === 'https://apps.nextcloud.com/api/v1') {
+					return 'https://custom.appsstore.endpoint/api/v1';
 				} else {
 					return $default;
 				}
@@ -122,7 +124,7 @@ public function testGetWithFilter() {
 		$response = $this->createMock(IResponse::class);
 		$client
 			->method('get')
-			->with('https://apps.nextcloud.com/api/v1/apps.json')
+			->with('https://custom.appsstore.endpoint/api/v1/apps.json')
 			->willReturn($response);
 		$response
 			->expects($this->once())
diff --git a/tests/lib/App/AppStore/Fetcher/FetcherBase.php b/tests/lib/App/AppStore/Fetcher/FetcherBase.php
index 851773a65066d..06a20572c1b4b 100644
--- a/tests/lib/App/AppStore/Fetcher/FetcherBase.php
+++ b/tests/lib/App/AppStore/Fetcher/FetcherBase.php
@@ -137,6 +137,11 @@ public function testGetWithNotExistingFileAndUpToDateTimestampAndVersion() {
 		$this->config
 			->expects($this->at(3))
 			->method('getSystemValue')
+			->with('appstoreurl', 'https://apps.nextcloud.com/api/v1')
+			->willReturn('https://apps.nextcloud.com/api/v1');
+		$this->config
+			->expects($this->at(4))
+			->method('getSystemValue')
 			->with(
 				$this->equalTo('version'),
 				$this->anything()
@@ -298,6 +303,11 @@ public function testGetWithAlreadyExistingFileAndNoVersion() {
 		$this->config
 			->expects($this->at(3))
 			->method('getSystemValue')
+			->with('appstoreurl', 'https://apps.nextcloud.com/api/v1')
+			->willReturn('https://apps.nextcloud.com/api/v1');
+		$this->config
+			->expects($this->at(4))
+			->method('getSystemValue')
 			->with(
 				$this->equalTo('version'),
 				$this->anything()
@@ -382,6 +392,11 @@ public function testGetWithAlreadyExistingFileAndOutdatedVersion() {
 		$this->config
 			->expects($this->at(3))
 			->method('getSystemValue')
+			->with('appstoreurl', 'https://apps.nextcloud.com/api/v1')
+			->willReturn('https://apps.nextcloud.com/api/v1');
+		$this->config
+			->expects($this->at(4))
+			->method('getSystemValue')
 			->with(
 				$this->equalTo('version'),
 				$this->anything()