diff --git a/app/controllers/api/v1/tasks_controller.rb b/app/controllers/api/v1/tasks_controller.rb
index d147e63c2..a948dfb4f 100644
--- a/app/controllers/api/v1/tasks_controller.rb
+++ b/app/controllers/api/v1/tasks_controller.rb
@@ -9,7 +9,7 @@ module Api
       before_action only: :show do
         load_task(:id)
       end
-      before_action :load_task_relative, only: %i(inputs outputs activities)
+      before_action :load_task_relative, only: :activities
 
       def index
         tasks = @experiment.my_modules
@@ -23,20 +23,6 @@ module Api
         render jsonapi: @task, serializer: TaskSerializer
       end
 
-      def inputs
-        inputs = @task.my_module_antecessors
-                      .page(params.dig(:page, :number))
-                      .per(params.dig(:page, :size))
-        render jsonapi: inputs, each_serializer: TaskSerializer
-      end
-
-      def outputs
-        outputs = @task.my_modules
-                       .page(params.dig(:page, :number))
-                       .per(params.dig(:page, :size))
-        render jsonapi: outputs, each_serializer: TaskSerializer
-      end
-
       def activities
         activities = @task.activities
                           .page(params.dig(:page, :number))
diff --git a/app/serializers/api/v1/task_serializer.rb b/app/serializers/api/v1/task_serializer.rb
index ba5461fd2..20660805c 100644
--- a/app/serializers/api/v1/task_serializer.rb
+++ b/app/serializers/api/v1/task_serializer.rb
@@ -5,6 +5,20 @@ module Api
     class TaskSerializer < ActiveModel::Serializer
       type :tasks
       attributes :id, :name, :due_date, :description, :state, :archived
+      has_many :output_tasks, key: :outputs,
+                            serializer: TaskSerializer,
+                            class_name: 'MyModule'
+      has_many :input_tasks, key: :inputs,
+                             serializer: TaskSerializer,
+                             class_name: 'MyModule'
+
+      def output_tasks
+        object.my_modules
+      end
+
+      def input_tasks
+        object.my_module_antecessors
+      end
     end
   end
 end
diff --git a/config/routes.rb b/config/routes.rb
index 42df5777e..12b526589 100644
--- a/config/routes.rb
+++ b/config/routes.rb
@@ -607,8 +607,6 @@ Rails.application.routes.draw do
                             as: :tags
                   resources :protocols, only: %i(index show)
                   resources :results, only: %i(index create show)
-                  get 'inputs', to: 'tasks#inputs'
-                  get 'outputs', to: 'tasks#outputs'
                   get 'activities', to: 'tasks#activities'
                 end
               end