diff --git a/app/Api/V1/Controllers/BillController.php b/app/Api/V1/Controllers/BillController.php
new file mode 100644
index 0000000000..a0f793353e
--- /dev/null
+++ b/app/Api/V1/Controllers/BillController.php
@@ -0,0 +1,91 @@
+<?php
+/**
+ * BillController.php
+ * Copyright (c) 2018 thegrumpydictator@gmail.com
+ *
+ * This file is part of Firefly III.
+ *
+ * Firefly III is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * Firefly III 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 General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with Firefly III. If not, see <http://www.gnu.org/licenses/>.
+ */
+declare(strict_types=1);
+
+namespace FireflyIII\Api\V1\Controllers;
+
+use FireflyIII\Models\Bill;
+use Illuminate\Http\Request;
+
+/**
+ * Class BillController
+ */
+class BillController extends Controller
+{
+    /**
+     * Remove the specified resource from storage.
+     *
+     * @param  \FireflyIII\Models\Bill $bill
+     *
+     * @return \Illuminate\Http\Response
+     */
+    public function destroy(Bill $bill)
+    {
+        //
+    }
+
+    /**
+     * Display a listing of the resource.
+     *
+     * @return \Illuminate\Http\Response
+     */
+    public function index()
+    {
+        //
+    }
+
+    /**
+     * Display the specified resource.
+     *
+     * @param  \FireflyIII\Models\Bill $bill
+     *
+     * @return \Illuminate\Http\Response
+     */
+    public function show(Bill $bill)
+    {
+        //
+    }
+
+    /**
+     * Store a newly created resource in storage.
+     *
+     * @param  \Illuminate\Http\Request $request
+     *
+     * @return \Illuminate\Http\Response
+     */
+    public function store(Request $request)
+    {
+        //
+    }
+
+    /**
+     * Update the specified resource in storage.
+     *
+     * @param  \Illuminate\Http\Request $request
+     * @param  \FireflyIII\Models\Bill  $bill
+     *
+     * @return \Illuminate\Http\Response
+     */
+    public function update(Request $request, Bill $bill)
+    {
+        //
+    }
+}
diff --git a/app/Api/V1/Controllers/Controller.php b/app/Api/V1/Controllers/Controller.php
new file mode 100644
index 0000000000..ddcf6dded1
--- /dev/null
+++ b/app/Api/V1/Controllers/Controller.php
@@ -0,0 +1,54 @@
+<?php
+/**
+ * Controller.php
+ * Copyright (c) 2018 thegrumpydictator@gmail.com
+ *
+ * This file is part of Firefly III.
+ *
+ * Firefly III is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * Firefly III 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 General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with Firefly III. If not, see <http://www.gnu.org/licenses/>.
+ */
+declare(strict_types=1);
+
+namespace FireflyIII\Api\V1\Controllers;
+
+use FireflyConfig;
+use FireflyIII\Exceptions\FireflyException;
+use Illuminate\Foundation\Auth\Access\AuthorizesRequests;
+use Illuminate\Foundation\Bus\DispatchesJobs;
+use Illuminate\Foundation\Validation\ValidatesRequests;
+use Illuminate\Routing\Controller as BaseController;
+
+/**
+ * Class Controller.
+ */
+class Controller extends BaseController
+{
+    use AuthorizesRequests, DispatchesJobs, ValidatesRequests;
+
+    /**
+     * Controller constructor.
+     *
+     * @throws FireflyException
+     */
+    public function __construct()
+    {
+        // is site a demo site?
+        $isDemoSite = FireflyConfig::get('is_demo_site', config('firefly.configuration.is_demo_site'))->data;
+
+        // do not expose API on demo site:
+        if (true === $isDemoSite) {
+            throw new FireflyException('The API is not available on the demo site.');
+        }
+    }
+}