diff --git a/src/Bundle/ChillTaskBundle/Controller/SingleTaskController.php b/src/Bundle/ChillTaskBundle/Controller/SingleTaskController.php
index 490d50da1..fae54b6ae 100644
--- a/src/Bundle/ChillTaskBundle/Controller/SingleTaskController.php
+++ b/src/Bundle/ChillTaskBundle/Controller/SingleTaskController.php
@@ -13,6 +13,7 @@ namespace Chill\TaskBundle\Controller;
 
 use Chill\MainBundle\Pagination\PaginatorFactory;
 use Chill\MainBundle\Security\Resolver\CenterResolverDispatcherInterface;
+use Chill\MainBundle\Serializer\Model\Collection;
 use Chill\MainBundle\Templating\Listing\FilterOrderHelper;
 use Chill\MainBundle\Templating\Listing\FilterOrderHelperFactoryInterface;
 use Chill\MainBundle\Timeline\TimelineBuilder;
@@ -31,6 +32,8 @@ use Symfony\Bundle\FrameworkBundle\Controller\AbstractController;
 use Symfony\Component\EventDispatcher\EventDispatcherInterface;
 use Symfony\Component\Form\Extension\Core\Type\SubmitType;
 use Symfony\Component\Form\FormFactoryInterface;
+use Symfony\Component\HttpFoundation\Exception\BadRequestException;
+use Symfony\Component\HttpFoundation\JsonResponse;
 use Symfony\Component\HttpFoundation\Request;
 use Symfony\Component\HttpFoundation\Response;
 use Symfony\Component\HttpKernel\Exception\BadRequestHttpException;
@@ -431,10 +434,15 @@ final class SingleTaskController extends AbstractController
      * @return Response
      * @Route(
      *     "/{_locale}/task/single-task/list/my",
-     *     name="chill_task_singletask_my_tasks"
+     *     name="chill_task_singletask_my_tasks",
+     *     defaults={"_format": "html"}
+     * )
+     * @Route(
+     *     "/api/1.0/task/single-task/list/my",
+     *     defaults={"_format": "json"}
      * )
      */
-    public function myTasksAction()
+    public function myTasksAction(string $_format)
     {
         $this->denyAccessUnlessGranted('ROLE_USER');
 
@@ -459,11 +467,23 @@ final class SingleTaskController extends AbstractController
             ]
         );
 
-        return $this->render('@ChillTask/SingleTask/List/index_my_tasks.html.twig', [
-            'tasks' => $tasks,
-            'paginator' => $paginator,
-            'filter_order' => $filterOrder,
-        ]);
+        switch ($_format) {
+            case 'html':
+                return $this->render('@ChillTask/SingleTask/List/index_my_tasks.html.twig', [
+                    'tasks' => $tasks,
+                    'paginator' => $paginator,
+                    'filter_order' => $filterOrder,
+                ]);
+
+            case 'json':
+                $collection = new Collection($tasks, $paginator);
+
+                return $this->json($collection, JsonResponse::HTTP_OK, [],
+                    ['groups' => ['read']]);
+
+            default:
+                throw new BadRequestException("format not supported: $format");
+        }
     }
 
     /**
diff --git a/src/Bundle/ChillTaskBundle/Entity/AbstractTask.php b/src/Bundle/ChillTaskBundle/Entity/AbstractTask.php
index 8b44ebf8f..a4b154d2b 100644
--- a/src/Bundle/ChillTaskBundle/Entity/AbstractTask.php
+++ b/src/Bundle/ChillTaskBundle/Entity/AbstractTask.php
@@ -18,6 +18,7 @@ use Chill\MainBundle\Entity\User;
 use Chill\PersonBundle\Entity\AccompanyingPeriod;
 use Chill\PersonBundle\Entity\Person;
 use Doctrine\ORM\Mapping as ORM;
+use Symfony\Component\Serializer\Annotation as Serializer;
 use Symfony\Component\Validator\Constraints as Assert;
 
 use function array_fill_keys;
@@ -27,6 +28,9 @@ use function array_keys;
  * AbstractTask.
  *
  * @ORM\MappedSuperclass
+ * @Serializer\DiscriminatorMap(typeProperty="type", mapping={
+ *          "single_task": SingleTask::class
+ *     })
  */
 abstract class AbstractTask implements HasCenterInterface, HasScopeInterface
 {
@@ -35,6 +39,7 @@ abstract class AbstractTask implements HasCenterInterface, HasScopeInterface
      * @ORM\ManyToOne(
      *     targetEntity="\Chill\MainBundle\Entity\User"
      * )
+     * @Serializer\Groups({"read"})
      */
     private $assignee;
 
@@ -49,12 +54,14 @@ abstract class AbstractTask implements HasCenterInterface, HasScopeInterface
     /**
      * @var bool
      * @ORM\Column(name="closed", type="boolean", options={ "default": false })
+     * @Serializer\Groups({"read"})
      */
     private $closed = false;
 
     /**
      * @var AccompanyingPeriod
      * @ORM\ManyToOne(targetEntity="\Chill\PersonBundle\Entity\AccompanyingPeriod")
+     * @Serializer\Groups({"read"})
      */
     private $course;
 
@@ -62,6 +69,7 @@ abstract class AbstractTask implements HasCenterInterface, HasScopeInterface
      * @var json
      *
      * @ORM\Column(name="current_states", type="json")
+     * @Serializer\Groups({"read"})
      */
     private $currentStates = [];
 
@@ -69,6 +77,7 @@ abstract class AbstractTask implements HasCenterInterface, HasScopeInterface
      * @var string
      *
      * @ORM\Column(name="description", type="text")
+     * @Serializer\Groups({"read"})
      */
     private $description = '';
 
@@ -77,6 +86,7 @@ abstract class AbstractTask implements HasCenterInterface, HasScopeInterface
      * @ORM\ManyToOne(
      *     targetEntity="\Chill\PersonBundle\Entity\Person"
      * )
+     * @Serializer\Groups({"read"})
      */
     private $person;
 
@@ -85,6 +95,7 @@ abstract class AbstractTask implements HasCenterInterface, HasScopeInterface
      *
      * @ORM\Column(name="title", type="text")
      * @Assert\NotBlank
+     * @Serializer\Groups({"read"})
      */
     private $title = '';
 
@@ -92,6 +103,7 @@ abstract class AbstractTask implements HasCenterInterface, HasScopeInterface
      * @var string
      *
      * @ORM\Column(name="type", type="string", length=255)
+     * @Serializer\Groups({"read"})
      */
     private $type;