diff --git a/src/MojangInterop.php b/src/MojangInterop.php
index e8ba0fb..53ac87e 100644
--- a/src/MojangInterop.php
+++ b/src/MojangInterop.php
@@ -36,7 +36,7 @@ final class MojangInterop {
     }
 
     public static function registerRoutes(IRouter $router): void {
-        $router->get('/uuid', fn($response, $request) => self::uuidResolver($request));
+        $router->get('/uuid', fn($response, $request) => self::uuidResolver($response, $request));
         $router->get('/blockedservers', fn($response, $request) => self::proxyBlockServers($response, $request));
 
         // figure out how to proxy these someday to keep online mode working transparently
@@ -44,8 +44,17 @@ final class MojangInterop {
         $router->post('/session/minecraft/join', fn() => 501);
     }
 
-    public static function uuidResolver(HttpRequest $request): string {
-        return (string)self::createOfflinePlayerUUID((string)$request->getParam('name'))->getHex();
+    public static function uuidResolver(HttpResponseBuilder $response, HttpRequest $request): string {
+        $response->setTypePlain();
+        $uuid = self::createOfflinePlayerUUID((string)$request->getParam('name'));
+
+        return (string)match((string)$request->getParam('mode')) {
+            'str' => $uuid->toString(),
+            'urn' => $uuid->getUrn(),
+            'raw' => $uuid->getBytes(),
+            'int' => $uuid->getInteger(),
+            default => $uuid->getHex(),
+        };
     }
 
     public static function getRequest(string $url, string $userAgent): object {