diff --git a/application/controllers/api/frontend/v1/stv/Address.php b/application/controllers/api/frontend/v1/stv/Address.php
new file mode 100644
index 000000000..7685fcd04
--- /dev/null
+++ b/application/controllers/api/frontend/v1/stv/Address.php
@@ -0,0 +1,66 @@
+<?php
+/**
+ * Copyright (C) 2024 fhcomplete.org
+ *
+ * This program 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.
+ *
+ * This program 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 this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+if (! defined('BASEPATH')) exit('No direct script access allowed');
+
+/**
+ * This controller operates between (interface) the JS (GUI) and the back-end
+ * Provides data to the ajax get calls about addresses
+ * This controller works with JSON calls on the HTTP GET or POST and the output is always JSON
+ */
+class Address extends FHCAPI_Controller
+{
+	public function __construct()
+	{
+		parent::__construct([
+			'getNations' => self::PERM_LOGGED,
+			'getPlaces' => self::PERM_LOGGED
+		]);
+	}
+
+	public function getNations()
+	{
+		$this->load->model('codex/Nation_model', 'NationModel');
+
+		$this->NationModel->addOrder('kurztext');
+
+		$result = $this->NationModel->load();
+		$data = $this->getDataOrTerminateWithError($result);
+		
+		$this->terminateWithSuccess($data);
+	}
+
+	public function getPlaces($plz)
+	{
+		$this->load->model('codex/Gemeinde_model', 'GemeindeModel');
+
+		$this->load->library('form_validation');
+		
+		$this->form_validation->set_data(['address.plz' => $plz]);
+
+		$this->form_validation->set_rules('address.plz', 'PLZ', 'numeric|less_than[10000]');
+
+		if (!$this->form_validation->run())
+			$this->terminateWithValidationErrors($this->form_validation->error_array());
+
+		$result = $this->GemeindeModel->getGemeindeByPlz($plz);
+		$data = $this->getDataOrTerminateWithError($result);
+		
+		$this->terminateWithSuccess($data);
+	}
+}
diff --git a/application/controllers/api/frontend/v1/stv/Config.php b/application/controllers/api/frontend/v1/stv/Config.php
index 9aaf49651..d97c1a86b 100644
--- a/application/controllers/api/frontend/v1/stv/Config.php
+++ b/application/controllers/api/frontend/v1/stv/Config.php
@@ -31,7 +31,7 @@ class Config extends FHCAPI_Controller
 
 	public function __construct()
 	{
-		// TODO(chris): access!
+		// TODO(chris): permissions
 		parent::__construct([
 			'student' => self::PERM_LOGGED,
 			'students' => self::PERM_LOGGED
diff --git a/application/controllers/api/frontend/v1/stv/Filter.php b/application/controllers/api/frontend/v1/stv/Filter.php
index d5ee44d13..dbf70e4fb 100644
--- a/application/controllers/api/frontend/v1/stv/Filter.php
+++ b/application/controllers/api/frontend/v1/stv/Filter.php
@@ -31,10 +31,9 @@ class Filter extends FHCAPI_Controller
 	 */
 	public function __construct()
 	{
-		// TODO(chris): permissions
 		parent::__construct([
-			'getStg' => 'student/stammdaten:r',#self::PERM_LOGGED,
-			'setStg' => 'student/stammdaten:r'#self::PERM_LOGGED
+			'getStg' => self::PERM_LOGGED,
+			'setStg' => self::PERM_LOGGED
 		]);
 
 		// Load models
@@ -53,10 +52,7 @@ class Filter extends FHCAPI_Controller
 	{
 		$result = $this->VariableModel->getVariables(getAuthUID(), ['kontofilterstg']);
 
-		#$data = $this->getDataOrTerminateWithError($result);
-		if (isError($result))
-			$this->terminateWithError(getError($result), self::ERROR_TYPE_GENERAL);
-		$data = $result->retval;
+		$data = $this->getDataOrTerminateWithError($result);
 
 		$this->terminateWithSuccess($data['kontofilterstg'] == 'true');
 	}
@@ -81,9 +77,7 @@ class Filter extends FHCAPI_Controller
 
 		$result = $this->VariableModel->setVariable(getAuthUID(), 'kontofilterstg', $studiengang_kz ? 'true' : 'false');
 
-		#$this->getDataOrTerminateWithError($result);
-		if (isError($result))
-			$this->terminateWithError(getError($result), self::ERROR_TYPE_GENERAL);
+		$this->getDataOrTerminateWithError($result);
 
 		$this->terminateWithSuccess(true);
 	}
diff --git a/application/controllers/api/frontend/v1/stv/Konto.php b/application/controllers/api/frontend/v1/stv/Konto.php
index 4606f5abc..a4344889c 100644
--- a/application/controllers/api/frontend/v1/stv/Konto.php
+++ b/application/controllers/api/frontend/v1/stv/Konto.php
@@ -33,10 +33,9 @@ class Konto extends FHCAPI_Controller
 	 */
 	public function __construct()
 	{
-		// TODO(chris): permissions
 		parent::__construct([
 			'get' => 'student/stammdaten:r',
-			'getBuchungstypen' => 'student/stammdaten:r', // alle?
+			'getBuchungstypen' => self::PERM_LOGGED,
 			'checkDoubles' => ['admin:r', 'assistenz:r'],
 			'insert' => ['admin:w', 'assistenz:w'],
 			'counter' => ['admin:w', 'assistenz:w'],
@@ -82,10 +81,7 @@ class Konto extends FHCAPI_Controller
 			$result = $this->KontoModel->getAlleBuchungen($person_id, $studiengang_kz);
 		}
 
-		#$result = $this->getDataOrTerminateWithError($result);
-		if (isError($result))
-			$this->terminateWithError(getError($result), self::ERROR_TYPE_GENERAL);
-		$result = $result->retval;
+		$result = $this->getDataOrTerminateWithError($result);
 
 		// sort into tree
 		$childs = [];
@@ -122,10 +118,7 @@ class Konto extends FHCAPI_Controller
 
 		$result = $this->BuchungstypModel->load();
 
-		#$data = $this->getDataOrTerminateWithError($result);
-		if (isError($result))
-			$this->terminateWithError(getError($result), self::ERROR_TYPE_GENERAL);
-		$data = $result->retval;
+		$data = $this->getDataOrTerminateWithError($result);
 
 		$this->terminateWithSuccess($data);
 	}
@@ -163,10 +156,7 @@ class Konto extends FHCAPI_Controller
 
 		$result = $this->KontoModel->checkDoubleBuchung($person_ids, $this->input->post('studiensemester_kurzbz'), $buchungstypen[$buchung]);
 
-		#$result = $this->getDataOrTerminateWithError($result);
-		if (isError($result))
-			$this->terminateWithError(getError($result), self::ERROR_TYPE_GENERAL);
-		$result = $result->retval;
+		$result = $this->getDataOrTerminateWithError($result);
 
 		if (!$result)
 			$this->terminateWithSuccess(false);
@@ -441,9 +431,7 @@ class Konto extends FHCAPI_Controller
 
 		$result = $this->KontoModel->update($id, $data);
 
-		#$this->getDataOrTerminateWithError($result);
-		if (isError($result))
-			$this->terminateWithError(getError($result), self::ERROR_TYPE_GENERAL);
+		$this->getDataOrTerminateWithError($result);
 
 		$result = null;
 		// TODO(chris): get as tree?
@@ -475,15 +463,13 @@ class Konto extends FHCAPI_Controller
 		$buchungsnr = $this->input->post('buchungsnr');
 
 		$result = $this->KontoModel->load($buchungsnr);
-		#$result = $this->getDataOrTerminateWithError($result);
-		if (isError($result))
-			$this->terminateWithError(getError($result), self::ERROR_TYPE_GENERAL);
-		$result = $result->retval;
+
+		$result = $this->getDataOrTerminateWithError($result);
 
 		if (!$result)
 			$this->terminateWithError($this->p->t('konto', 'error_missing', [
 				'buchungsnr' => $buchungsnr
-			]), self::ERROR_TYPE_GENERAL);
+			]));
 
 		$_POST['studiengang_kz'] = current($result)->studiengang_kz;
 
@@ -500,8 +486,8 @@ class Konto extends FHCAPI_Controller
 		$result = $this->KontoModel->delete($buchungsnr);
 		if (isError($result)) {
 			if (getCode($result) != 42)
-				$this->terminateWithError(getError($result), self::ERROR_TYPE_GENERAL);
-			$this->terminateWithError($this->p->t('konto', 'error_delete_level'), self::ERROR_TYPE_GENERAL);
+				$this->terminateWithError(getError($result));
+			$this->terminateWithError($this->p->t('konto', 'error_delete_level'));
 		}
 
 		$this->terminateWithSuccess();
diff --git a/application/controllers/api/frontend/v1/stv/Lists.php b/application/controllers/api/frontend/v1/stv/Lists.php
index 2a8335b7e..eceaf8c8c 100644
--- a/application/controllers/api/frontend/v1/stv/Lists.php
+++ b/application/controllers/api/frontend/v1/stv/Lists.php
@@ -27,10 +27,13 @@ class Lists extends FHCAPI_Controller
 {
 	public function __construct()
 	{
-		// TODO(chris): permissions
 		parent::__construct([
-			'getStudiensemester' => ['admin:r', 'assistenz:r', 'student/stammdaten:r'], // alle?
-			'getStgs' => ['admin:r', 'assistenz:r', 'student/stammdaten:r'] // alle?
+			'getStudiensemester' => self::PERM_LOGGED,
+			'getStgs' => self::PERM_LOGGED,
+			'getSprachen' => self::PERM_LOGGED,
+			'getGeschlechter' => self::PERM_LOGGED,
+			'getAusbildungen' => self::PERM_LOGGED,
+			'getOrgforms' => self::PERM_LOGGED
 		]);
 	}
 
@@ -42,10 +45,7 @@ class Lists extends FHCAPI_Controller
 
 		$result = $this->StudiensemesterModel->load();
 
-		#$data = $this->getDataOrTerminateWithError($result);
-		if (isError($result))
-			$this->terminateWithError(getError($result), self::ERROR_TYPE_GENERAL);
-		$data = $result->retval;
+		$data = $this->getDataOrTerminateWithError($result);
 
 		$this->terminateWithSuccess($data);
 	}
@@ -62,11 +62,60 @@ class Lists extends FHCAPI_Controller
 
 		$result = $this->StudiengangModel->load();
 
-		#$data = $this->getDataOrTerminateWithError($result);
-		if (isError($result))
-			$this->terminateWithError(getError($result), self::ERROR_TYPE_GENERAL);
-		$data = $result->retval;
+		$data = $this->getDataOrTerminateWithError($result);
 
 		$this->terminateWithSuccess($data);
 	}
+
+	public function getSprachen()
+	{
+		$this->load->model('system/Sprache_model', 'SpracheModel');
+
+		$this->SpracheModel->addOrder('sprache');
+
+		$result = $this->SpracheModel->load();
+		$data = $this->getDataOrTerminateWithError($result);
+		
+		$this->terminateWithSuccess($data);
+	}
+
+	public function getGeschlechter()
+	{
+		$this->load->model('person/Geschlecht_model', 'GeschlechtModel');
+
+		$this->GeschlechtModel->addOrder('sort');
+		$this->GeschlechtModel->addOrder('geschlecht');
+
+		$this->GeschlechtModel->addSelect('*');
+		$this->GeschlechtModel->addSelect("bezeichnung_mehrsprachig[(SELECT index FROM public.tbl_sprache WHERE sprache=" . $this->GeschlechtModel->escape(DEFAULT_LANGUAGE) . " LIMIT 1)] AS bezeichnung");
+
+		$result = $this->GeschlechtModel->load();
+		$data = $this->getDataOrTerminateWithError($result);
+		
+		$this->terminateWithSuccess($data);
+	}
+
+	public function getAusbildungen()
+	{
+		$this->load->model('codex/Ausbildung_model', 'AusbildungModel');
+
+		$this->AusbildungModel->addOrder('ausbildungcode');
+
+		$result = $this->AusbildungModel->load();
+		$data = $this->getDataOrTerminateWithError($result);
+		
+		$this->terminateWithSuccess($data);
+	}
+
+	public function getOrgforms()
+	{
+		$this->load->model('codex/Orgform_model', 'OrgformModel');
+
+		$this->OrgformModel->addOrder('bezeichnung');
+
+		$result = $this->OrgformModel->loadWhere(['rolle' => true]);
+		$data = $this->getDataOrTerminateWithError($result);
+		
+		$this->terminateWithSuccess($data);
+	}
 }
diff --git a/application/controllers/api/frontend/v1/stv/Student.php b/application/controllers/api/frontend/v1/stv/Student.php
index 101d34863..31fc7075c 100644
--- a/application/controllers/api/frontend/v1/stv/Student.php
+++ b/application/controllers/api/frontend/v1/stv/Student.php
@@ -100,10 +100,7 @@ class Student extends FHCAPI_Controller
 
 		$result = $this->PrestudentModel->loadWhere(['prestudent_id' => $prestudent_id]);
 		
-		#$student = $this->getDataOrTerminateWithError($result);
-		if (isError($result))
-			$this->terminateWithError(getError($result), self::ERROR_TYPE_GENERAL);
-		$student = $result->retval;
+		$student = $this->getDataOrTerminateWithError($result);
 		
 		if (!$student)
 			return show_404();
@@ -136,10 +133,7 @@ class Student extends FHCAPI_Controller
 		
 		$result = $this->udflib->getCiValidations($this->PersonModel, $this->input->post());
 
-		#$fieldValidations = $this->getDataOrTerminateWithError($result);
-		if (isError($result))
-			$this->terminateWithError(getError($result));
-		$fieldvalidations = $result->retval;
+		$fieldValidations = $this->getDataOrTerminateWithError($result);
 
 		$this->form_validation->set_rules($fieldvalidations);
 
@@ -148,19 +142,13 @@ class Student extends FHCAPI_Controller
 
 		$result = $this->StudentModel->loadWhere(['prestudent_id' => $prestudent_id]);
 		
-		#$student = $this->getDataOrTerminateWithError($result);
-		if (isError($result))
-			$this->terminateWithError(getError($result), self::ERROR_TYPE_GENERAL);
-		$student = $result->retval;
+		$student = $this->getDataOrTerminateWithError($result);
 
 		$uid = $student ? current($student)->student_uid : null;
 
 		$result = $this->PrestudentModel->loadWhere(['prestudent_id' => $prestudent_id]);
 
-		#$person = $this->getDataOrTerminateWithError($result);
-		if (isError($result))
-			$this->terminateWithError(getError($result));
-		$person = $result->retval;
+		$person = $this->getDataOrTerminateWithError($result);
 
 		$person_id = $person ? current($person)->person_id : null;
 
@@ -201,10 +189,7 @@ class Student extends FHCAPI_Controller
 		// add UDFs
 		$result = $this->udflib->getDefinitionForModel($this->PersonModel);
 
-		#$definitions = $this->getDataOrTerminateWithError($result);
-		if (isError($result))
-			$this->terminateWithError(getError($result), self::ERROR_TYPE_GENERAL);
-		$definitions = $result->retval;
+		$definitions = $this->getDataOrTerminateWithError($result);
 
 		foreach ($definitions as $def)
 			$array_allowed_props_person[] = $def['name'];
@@ -242,9 +227,7 @@ class Student extends FHCAPI_Controller
 				'studiensemester_kurzbz' => $studiensemester_kurzbz,
 				'student_uid' => $uid
 			], $update_lehrverband);
-			#$this->getDataOrTerminateWithError($result);
-			if (isError($result))
-				$this->terminateWithError(getError($result), self::ERROR_TYPE_GENERAL);
+			$this->getDataOrTerminateWithError($result);
 		}
 
 		if (count($update_person)) {
@@ -252,9 +235,7 @@ class Student extends FHCAPI_Controller
 				$person_id,
 				$update_person
 			);
-			#$this->getDataOrTerminateWithError($result);
-			if (isError($result))
-				$this->terminateWithError(getError($result), self::ERROR_TYPE_GENERAL);
+			$this->getDataOrTerminateWithError($result);
 		}
 
 
@@ -263,9 +244,7 @@ class Student extends FHCAPI_Controller
 				[$uid],
 				$update_student
 			);
-			#$this->getDataOrTerminateWithError($result);
-			if (isError($result))
-				$this->terminateWithError(getError($result), self::ERROR_TYPE_GENERAL);
+			$this->getDataOrTerminateWithError($result);
 		}
 
 		$this->terminateWithSuccess(array_fill_keys(array_merge(
@@ -308,10 +287,7 @@ class Student extends FHCAPI_Controller
 
 		$result = $this->PersonModel->load();
 
-		#$data = $this->getDataOrTerminateWithError($result);
-		if (isError($result))
-			$this->terminateWithError(getError($result), self::ERROR_TYPE_GENERAL);
-		$data = $result->retval;
+		$data = $this->getDataOrTerminateWithError($result);
 
 		$this->terminateWithSuccess($data);
 	}
@@ -413,9 +389,7 @@ class Student extends FHCAPI_Controller
 				$data['staatsbuergerschaft'] = $this->input->post('staatsbuergerschaft');
 
 			$result = $this->PersonModel->insert($data);
-			if (isError($result))
-				return $result;
-			$person_id = getData($result);
+			$person_id = $this->getDataOrTerminateWithError($result);
 		}
 
 		// Addresse anlegen
@@ -438,17 +412,15 @@ class Student extends FHCAPI_Controller
 				$result = $this->AdresseModel->loadWhere([
 					'person_id' => $person_id
 				]);
-				if (isError($result))
-					return $result;
-				if (hasData($result)) {
-					$address = current(getData($result));
+				$address = $this->getDataOrTerminateWithError($result);
+				if ($address) {
+					$address = current($address);
 
 					$data['updateamum'] = date('c');
 					$data['updatevon'] = getAuthUID();
 
 					$result = $this->AdresseModel->update($address->adresse_id, $data);
-					if (isError($result))
-						return $result;
+					$this->getDataOrTerminateWithError($result);
 				} else {
 					//Wenn keine Adrese vorhanden ist dann eine neue Anlegen
 					$anlegen = 1;
@@ -463,8 +435,7 @@ class Student extends FHCAPI_Controller
 					$data['heimatadresse'] = !$this->input->post('person_id');
 				
 				$result = $this->AdresseModel->insert($data);
-				if (isError($result))
-					return $result;
+				$this->getDataOrTerminateWithError($result);
 			}
 		}
 		
@@ -488,8 +459,7 @@ class Student extends FHCAPI_Controller
 					'insertvon' => getAuthUID()
 				];
 				$result = $this->KontaktModel->insert($data);
-				if (isError($result))
-					return $result;
+				$this->getDataOrTerminateWithError($result);
 			}
 		}
 
@@ -517,10 +487,9 @@ class Student extends FHCAPI_Controller
 		$result = $this->PrestudentModel->loadWhere([
 			'person_id' => $person_id
 		]);
-		if (isError($result))
-			return $result;
-		if (hasData($result)) {
-			$prestudent = current(getData($result));
+		$prestudent = $this->getDataOrTerminateWithError($result);
+		if ($prestudent) {
+			$prestudent = current($prestudent);
 			if ($prestudent->zgv_code) {
 				$data['zgv_code'] = $prestudent->zgv_code;
 				$data['zgvort'] = $prestudent->zgvort;
@@ -533,9 +502,7 @@ class Student extends FHCAPI_Controller
 		}
 		// Prestudent speichern
 		$result = $this->PrestudentModel->insert($data);
-		if (isError($result))
-			return $result;
-		$prestudent_id = getData($result);
+		$prestudent_id = $this->getDataOrTerminateWithError($result);
 
 		// Prestudent Rolle Anlegen
 		$data = [
@@ -550,8 +517,7 @@ class Student extends FHCAPI_Controller
 			'insertvon' => getAuthUID()
 		];
 		$result = $this->PrestudentstatusModel->insert($data);
-		if (isError($result))
-			return $result;
+		$this->getDataOrTerminateWithError($result);
 
 		if ($incoming) {
 			// TODO(chris): IMPLEMENT!
@@ -569,7 +535,7 @@ class Student extends FHCAPI_Controller
 			return $result;
 		}*/
 
-		return success(true);
+		$this->terminateWithSuccess(true);
 	}
 
 	public function requiredIfNotPersonId($value)
diff --git a/application/controllers/components/stv/Verband.php b/application/controllers/api/frontend/v1/stv/Verband.php
similarity index 86%
rename from application/controllers/components/stv/Verband.php
rename to application/controllers/api/frontend/v1/stv/Verband.php
index 18ce5c999..5a7960fd5 100644
--- a/application/controllers/components/stv/Verband.php
+++ b/application/controllers/api/frontend/v1/stv/Verband.php
@@ -1,17 +1,41 @@
 <?php
+/**
+ * Copyright (C) 2024 fhcomplete.org
+ *
+ * This program 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.
+ *
+ * This program 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 this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
 
 if (! defined('BASEPATH')) exit('No direct script access allowed');
 
-class Verband extends FHC_Controller
+/**
+ * This controller operates between (interface) the JS (GUI) and the back-end
+ * Provides data to the ajax get calls about verbände
+ * This controller works with JSON calls on the HTTP GET or POST and the output is always JSON
+ */
+class Verband extends FHCAPI_Controller
 {
 	public function __construct()
 	{
-		// TODO(chris): access!
-		parent::__construct();
-		
+		// TODO(chris): permissions
+		$permissions = [];
+		$router = load_class('Router');
+		$permissions[$router->method] = self::PERM_LOGGED;
+		parent::__construct($permissions);
+
+		// Load Models
 		$this->load->model('organisation/Studiengang_model', 'StudiengangModel');
 	}
-
 	/**
 	 * Remap calls:
 	 * /
@@ -75,12 +99,9 @@ class Verband extends FHC_Controller
 		$this->StudiengangModel->addOrder('kurzbz');
 
 		$result = $this->StudiengangModel->loadWhere(['v.aktiv' => true]);
-		if (isError($result)) {
-			$this->output->set_status_header(REST_Controller::HTTP_INTERNAL_SERVER_ERROR);
-			return $this->outputJson(getError($result));
-		}
 
-		$list = getData($result) ?: [];
+		$list = $this->getDataOrTerminateWithError($result);
+
 		$list[] = [
 			'name' => 'International',
 			'link' => 'inout',
@@ -102,7 +123,7 @@ class Verband extends FHC_Controller
 				]
 			]
 		];
-		$this->outputJson($list);
+		$this->terminateWithSuccess($list);
 	}
 
 	/**
@@ -139,12 +160,8 @@ class Verband extends FHC_Controller
 			'v.studiengang_kz' => $studiengang_kz,
 			'v.aktiv' => true
 		]);
-		if (isError($result)) {
-			$this->output->set_status_header(REST_Controller::HTTP_INTERNAL_SERVER_ERROR);
-			return $this->outputJson(getError($result));
-		}
+		$list = $this->getDataOrTerminateWithError($result);
 
-		$list = getData($result) ?: [];
 		array_unshift($list, [
 			'name' => 'PreStudent',
 			'link' => $link . 'prestudent',
@@ -154,12 +171,9 @@ class Verband extends FHC_Controller
 		if ($org_form === null) {
 			// NOTE(chris): if mischform show orgforms
 			$result = $this->StudiengangModel->load($studiengang_kz);
-			if (isError($result)) {
-				$this->output->set_status_header(REST_Controller::HTTP_INTERNAL_SERVER_ERROR);
-				return $this->outputJson(getError($result));
-			}
-			if (hasData($result)) {
-				if (current(getData($result))->mischform) {
+			$result = $this->getDataOrTerminateWithError($result);
+			if ($result) {
+				if (current($result)->mischform) {
 					$this->load->model('organisation/Studienordnung_model', 'StudienordnungModel');
 
 					$this->StudienordnungModel->addDistinct();
@@ -175,18 +189,14 @@ class Verband extends FHC_Controller
 						'studiengang_kz' => $studiengang_kz,
 						'p.orgform_kurzbz !=' => 'DDP'
 					]);
-					if (isError($result)) {
-						$this->output->set_status_header(REST_Controller::HTTP_INTERNAL_SERVER_ERROR);
-						return $this->outputJson(getError($result));
-					}
+					$result = $this->getDataOrTerminateWithError($result);
 
-					if (hasData($result))
-						$list = array_merge($list, getData($result));
+					$list = array_merge($list, $result);
 				}
 			}
 
 		}
-		$this->outputJson($list);
+		$this->terminateWithSuccess($list);
 	}
 
 	/**
@@ -231,13 +241,8 @@ class Verband extends FHC_Controller
 			$where['orgform_kurzbz'] = $org_form;
 
 		$result = $this->GruppeModel->loadWhere($where);
-		if (isError($result)) {
-			$this->output->set_status_header(REST_Controller::HTTP_INTERNAL_SERVER_ERROR);
-			return $this->outputJson(getError($result));
-		}
-
-		$list = getData($result) ?: [];
 
+		$list = $this->getDataOrTerminateWithError($result);
 
 		$this->StudiengangModel->addJoin('public.tbl_lehrverband v', 'studiengang_kz');
 		
@@ -263,14 +268,11 @@ class Verband extends FHC_Controller
 			$where['v.orgform_kurzbz'] = $org_form;
 
 		$result = $this->StudiengangModel->loadWhere($where);
-		if (isError($result)) {
-			$this->output->set_status_header(REST_Controller::HTTP_INTERNAL_SERVER_ERROR);
-			return $this->outputJson(getError($result));
-		}
+		$result = $this->getDataOrTerminateWithError($result);
 
-		$list = array_merge($list, getData($result) ?: []);
+		$list = array_merge($list, $result);
 
-		$this->outputJson($list);
+		$this->terminateWithSuccess($list);
 	}
 
 	/**
@@ -313,14 +315,10 @@ class Verband extends FHC_Controller
 			$where['v.orgform_kurzbz'] = $org_form;
 
 		$result = $this->StudiengangModel->loadWhere($where);
-		if (isError($result)) {
-			$this->output->set_status_header(REST_Controller::HTTP_INTERNAL_SERVER_ERROR);
-			return $this->outputJson(getError($result));
-		}
 
-		$list = getData($result) ?: [];
+		$list = $this->getDataOrTerminateWithError($result);
 
-		$this->outputJson($list);
+		$this->terminateWithSuccess($list);
 	}
 
 	/**
@@ -341,13 +339,8 @@ class Verband extends FHC_Controller
 		 * - then: $stsem_obj->getPlusMinus(NULL, $number_displayed_past_studiensemester, 'ende ASC');
 		 */
 		$result = $this->StudiensemesterModel->load();
-		if (isError($result)) {
-			$this->output->set_status_header(REST_Controller::HTTP_INTERNAL_SERVER_ERROR);
-			$this->outputJson(getError($result));
-			exit;
-		}
 
-		$studiensemester = getData($result) ?: [];
+		$studiensemester = $this->getDataOrTerminateWithError($result);
 		$result = [];
 
 		foreach ($studiensemester as $sem) {
diff --git a/application/controllers/components/stv/Address.php b/application/controllers/components/stv/Address.php
deleted file mode 100644
index c0e34c0c3..000000000
--- a/application/controllers/components/stv/Address.php
+++ /dev/null
@@ -1,47 +0,0 @@
-<?php
-
-if (! defined('BASEPATH')) exit('No direct script access allowed');
-
-class Address extends FHC_Controller
-{
-	public function __construct()
-	{
-		// TODO(chris): access!
-		parent::__construct();
-	}
-
-	public function getNations()
-	{
-		$this->load->model('codex/Nation_model', 'NationModel');
-
-		$this->NationModel->addOrder('kurztext');
-
-		$result = $this->NationModel->load();
-		if (isError($result)) {
-			$this->output->set_status_header(REST_Controller::HTTP_INTERNAL_SERVER_ERROR);
-		}
-		$this->outputJson($result);
-	}
-
-	public function getPlaces($plz)
-	{
-		$this->load->model('codex/Gemeinde_model', 'GemeindeModel');
-
-		$this->load->library('form_validation');
-		
-		$this->form_validation->set_data(['address.plz' => $plz]);
-
-		$this->form_validation->set_rules('address.plz', 'PLZ', 'numeric|less_than[10000]');
-
-		if ($this->form_validation->run() == false) {
-			$this->output->set_status_header(REST_Controller::HTTP_BAD_REQUEST);
-			return $this->outputJsonError($this->form_validation->error_array());
-		}
-
-		$result = $this->GemeindeModel->getGemeindeByPlz($plz);
-		if (isError($result)) {
-			$this->output->set_status_header(REST_Controller::HTTP_INTERNAL_SERVER_ERROR);
-		}
-		$this->outputJson($result);
-	}
-}
diff --git a/application/controllers/components/stv/Lists.php b/application/controllers/components/stv/Lists.php
deleted file mode 100644
index 959de7a12..000000000
--- a/application/controllers/components/stv/Lists.php
+++ /dev/null
@@ -1,85 +0,0 @@
-<?php
-
-if (! defined('BASEPATH')) exit('No direct script access allowed');
-
-class Lists extends FHC_Controller
-{
-	public function __construct()
-	{
-		// TODO(chris): access!
-		parent::__construct();
-	}
-
-	public function getSprachen()
-	{
-		$this->load->model('system/Sprache_model', 'SpracheModel');
-
-		$this->SpracheModel->addOrder('sprache');
-
-		$result = $this->SpracheModel->load();
-		if (isError($result)) {
-			$this->output->set_status_header(REST_Controller::HTTP_INTERNAL_SERVER_ERROR);
-		}
-		$this->outputJson($result);
-	}
-
-	public function getGeschlechter()
-	{
-		$this->load->model('person/Geschlecht_model', 'GeschlechtModel');
-
-		$this->GeschlechtModel->addOrder('sort');
-		$this->GeschlechtModel->addOrder('geschlecht');
-
-		$this->GeschlechtModel->addSelect('*');
-		$this->GeschlechtModel->addSelect("bezeichnung_mehrsprachig[(SELECT index FROM public.tbl_sprache WHERE sprache=" . $this->GeschlechtModel->escape(DEFAULT_LANGUAGE) . " LIMIT 1)] AS bezeichnung");
-
-		$result = $this->GeschlechtModel->load();
-		if (isError($result)) {
-			$this->output->set_status_header(REST_Controller::HTTP_INTERNAL_SERVER_ERROR);
-		}
-		$this->outputJson($result);
-	}
-
-	public function getAusbildungen()
-	{
-		$this->load->model('codex/Ausbildung_model', 'AusbildungModel');
-
-		$this->AusbildungModel->addOrder('ausbildungcode');
-
-		$result = $this->AusbildungModel->load();
-		if (isError($result)) {
-			$this->output->set_status_header(REST_Controller::HTTP_INTERNAL_SERVER_ERROR);
-		}
-		$this->outputJson($result);
-	}
-
-	public function getStgs()
-	{
-		$this->load->model('organisation/Studiengang_model', 'StudiengangModel');
-
-		$this->StudiengangModel->addSelect('*');
-		$this->StudiengangModel->addSelect('UPPER(typ || kurzbz) AS kuerzel');
-
-		$this->StudiengangModel->addOrder('typ');
-		$this->StudiengangModel->addOrder('kurzbz');
-
-		$result = $this->StudiengangModel->loadWhere(['aktiv' => true]);
-		if (isError($result)) {
-			$this->output->set_status_header(REST_Controller::HTTP_INTERNAL_SERVER_ERROR);
-		}
-		$this->outputJson($result);
-	}
-
-	public function getOrgforms()
-	{
-		$this->load->model('codex/Orgform_model', 'OrgformModel');
-
-		$this->OrgformModel->addOrder('bezeichnung');
-
-		$result = $this->OrgformModel->loadWhere(['rolle' => true]);
-		if (isError($result)) {
-			$this->output->set_status_header(REST_Controller::HTTP_INTERNAL_SERVER_ERROR);
-		}
-		$this->outputJson($result);
-	}
-}
diff --git a/application/views/Studentenverwaltung.php b/application/views/Studentenverwaltung.php
index 54354578e..8993053b3 100644
--- a/application/views/Studentenverwaltung.php
+++ b/application/views/Studentenverwaltung.php
@@ -5,7 +5,7 @@
 		'bootstrap5' => true,
 		'fontawesome6' => true,
 		'vue3' => true,
-		#'primevue3' => true,
+		'primevue3' => true,
 		#'filtercomponent' => true,
 		'tabulator5' => true,
 		'tinymce5' => true,
diff --git a/public/js/apps/Studentenverwaltung.js b/public/js/apps/Studentenverwaltung.js
index 9b24008e3..fbbee8e1d 100644
--- a/public/js/apps/Studentenverwaltung.js
+++ b/public/js/apps/Studentenverwaltung.js
@@ -1,5 +1,5 @@
 /**
- * Copyright (C) 2022 fhcomplete.org
+ * Copyright (C) 2024 fhcomplete.org
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -20,33 +20,28 @@ import fhcapifactory from "./api/fhcapifactory.js";
 
 import Phrasen from "../plugin/Phrasen.js";
 
-//import PrimeVue form "../../../../index.ci.php/public/js/components/primevue/config/config.esm.min.js");
-//const PrimeVue = await import(FHC_JS_DATA_STORAGE_OBJECT.app_root + FHC_JS_DATA_STORAGE_OBJECT.ci_router + "/public/js/components/primevue/config/config.esm.min.js").default;
-import(FHC_JS_DATA_STORAGE_OBJECT.app_root + FHC_JS_DATA_STORAGE_OBJECT.ci_router + "/public/js/components/primevue/config/config.esm.min.js").then(result => result.default).then(PrimeVue => {
-	Vue.$fhcapi = fhcapifactory;
 
-	const ciPath = FHC_JS_DATA_STORAGE_OBJECT.app_root.replace(/(https:|)(^|\/\/)(.*?\/)/g, '') + FHC_JS_DATA_STORAGE_OBJECT.ci_router;
+const ciPath = FHC_JS_DATA_STORAGE_OBJECT.app_root.replace(/(https:|)(^|\/\/)(.*?\/)/g, '') + FHC_JS_DATA_STORAGE_OBJECT.ci_router;
 
-	const router = VueRouter.createRouter({
-		history: VueRouter.createWebHistory(),
-		routes: [
-			{ path: `/${ciPath}/studentenverwaltung`, component: FhcStudentenverwaltung },
-			{ path: `/${ciPath}/studentenverwaltung/prestudent/:prestudent_id`, component: FhcStudentenverwaltung },
-			{ path: `/${ciPath}/studentenverwaltung/prestudent/:prestudent_id/:tab`, component: FhcStudentenverwaltung },
-			{ path: `/${ciPath}/studentenverwaltung/student/:id`, component: FhcStudentenverwaltung },
-			{ path: `/${ciPath}/studentenverwaltung/person/:person_id`, component: FhcStudentenverwaltung }
-		]
-	});
-
-	const app = Vue.createApp();
-
-	app
-		.use(router)
-		.use(PrimeVue, {
-			zIndex: {
-				overlay: 1100
-			}
-		})
-		.use(Phrasen)
-		.mount('#main');
+const router = VueRouter.createRouter({
+	history: VueRouter.createWebHistory(),
+	routes: [
+		{ path: `/${ciPath}/studentenverwaltung`, component: FhcStudentenverwaltung },
+		{ path: `/${ciPath}/studentenverwaltung/prestudent/:prestudent_id`, component: FhcStudentenverwaltung },
+		{ path: `/${ciPath}/studentenverwaltung/prestudent/:prestudent_id/:tab`, component: FhcStudentenverwaltung },
+		{ path: `/${ciPath}/studentenverwaltung/student/:id`, component: FhcStudentenverwaltung },
+		{ path: `/${ciPath}/studentenverwaltung/person/:person_id`, component: FhcStudentenverwaltung }
+	]
 });
+
+const app = Vue.createApp();
+
+app
+	.use(router)
+	.use(primevue.config.default, {
+		zIndex: {
+			overlay: 1100
+		}
+	})
+	.use(Phrasen)
+	.mount('#main');
diff --git a/public/js/components/Stv/Studentenverwaltung.js b/public/js/components/Stv/Studentenverwaltung.js
index 69fa03dee..2fe6c9713 100644
--- a/public/js/components/Stv/Studentenverwaltung.js
+++ b/public/js/components/Stv/Studentenverwaltung.js
@@ -21,7 +21,6 @@ import StvVerband from "./Studentenverwaltung/Verband.js";
 import StvList from "./Studentenverwaltung/List.js";
 import StvDetails from "./Studentenverwaltung/Details.js";
 import StvStudiensemester from "./Studentenverwaltung/Studiensemester.js";
-import {CoreRESTClient} from '../../RESTClient.js';
 
 
 export default {
@@ -107,46 +106,38 @@ export default {
 			this.studiengangKz = studiengang_kz;
 			this.$refs.stvList.updateUrl(link);
 		},
-		searchfunction(searchsettings) {
-			return Vue.$fhcapi.Search.search(searchsettings);  
-		},
 		studiensemesterChanged(v) {
 			this.studiensemesterKurzbz = v;
 			this.$refs.stvList.updateUrl();
 			this.$refs.details.reload();
 		},
 		reloadList() {
-			console.log('reloadList2');
 			this.$refs.stvList.reload();
 		}
 	},
 	created() {
-		CoreRESTClient
-			.get('components/stv/Address/getNations')
-			.then(result => CoreRESTClient.getData(result.data) || [])
+		this.$fhcApi
+			.get('api/frontend/v1/stv/address/getNations')
 			.then(result => {
-				this.lists.nations = result;
+				this.lists.nations = result.data;
 			})
 			.catch(this.$fhcAlert.handleSystemError);
-		CoreRESTClient
-			.get('components/stv/Lists/getSprachen')
-			.then(result => CoreRESTClient.getData(result.data) || [])
+		this.$fhcApi
+			.get('api/frontend/v1/stv/lists/getSprachen')
 			.then(result => {
-				this.lists.sprachen = result;
+				this.lists.sprachen = result.data;
 			})
 			.catch(this.$fhcAlert.handleSystemError);
-		CoreRESTClient
-			.get('components/stv/Lists/getGeschlechter')
-			.then(result => CoreRESTClient.getData(result.data) || [])
+		this.$fhcApi
+			.get('api/frontend/v1/stv/lists/getGeschlechter')
 			.then(result => {
-				this.lists.geschlechter = result;
+				this.lists.geschlechter = result.data;
 			})
 			.catch(this.$fhcAlert.handleSystemError);
-		CoreRESTClient
-			.get('components/stv/Lists/getAusbildungen')
-			.then(result => CoreRESTClient.getData(result.data) || [])
+		this.$fhcApi
+			.get('api/frontend/v1/stv/lists/getAusbildungen')
 			.then(result => {
-				this.lists.ausbildungen = result;
+				this.lists.ausbildungen = result.data;
 			})
 			.catch(this.$fhcAlert.handleSystemError);
 		this.$fhcApi
@@ -156,11 +147,10 @@ export default {
 				this.lists.active_stgs = this.lists.stgs.filter(stg => stg.aktiv);
 			})
 			.catch(this.$fhcAlert.handleSystemError);
-		CoreRESTClient
-			.get('components/stv/Lists/getOrgforms')
-			.then(result => CoreRESTClient.getData(result.data) || [])
+		this.$fhcApi
+			.get('api/frontend/v1/stv/lists/getOrgforms')
 			.then(result => {
-				this.lists.orgforms = result;
+				this.lists.orgforms = result.data;
 			})
 			.catch(this.$fhcAlert.handleSystemError);
 		this.$fhcApi
@@ -191,7 +181,7 @@ export default {
 		<header class="navbar navbar-expand-lg navbar-dark bg-dark flex-md-nowrap p-0 shadow">
 			<a class="navbar-brand col-md-4 col-lg-3 col-xl-2 me-0 px-3" :href="stvRoot">FHC 4.0</a>
 			<button class="navbar-toggler d-md-none m-1 collapsed" type="button" data-bs-toggle="offcanvas" data-bs-target="#sidebarMenu" aria-controls="sidebarMenu" aria-expanded="false" :aria-label="$p.t('ui/toggle_nav')"><span class="navbar-toggler-icon"></span></button>
-			<core-searchbar :searchoptions="searchbaroptions" :searchfunction="searchfunction" class="searchbar w-100"></core-searchbar>
+			<core-searchbar :searchoptions="searchbaroptions" :searchfunction="$fhcApi.factory.search.search" class="searchbar w-100"></core-searchbar>
 		</header>
 		<div class="container-fluid overflow-hidden">
 			<div class="row h-100">
diff --git a/public/js/components/Stv/Studentenverwaltung/Details/Kontakt/Address.js b/public/js/components/Stv/Studentenverwaltung/Details/Kontakt/Address.js
index 017f3a056..e2301f7a3 100644
--- a/public/js/components/Stv/Studentenverwaltung/Details/Kontakt/Address.js
+++ b/public/js/components/Stv/Studentenverwaltung/Details/Kontakt/Address.js
@@ -1,5 +1,4 @@
 import {CoreFilterCmpt} from "../../../../filter/Filter.js";
-import {CoreRESTClient} from "../../../../../RESTClient";
 import PvAutoComplete from "../../../../../../../index.ci.php/public/js/components/primevue/autocomplete/autocomplete.esm.min.js";
 import FhcFormValidation from '../../../../Form/Validation.js';
 import BsModal from "../../../../Bootstrap/Modal.js";
@@ -17,7 +16,7 @@ export default{
 	data() {
 		return{
 			tabulatorOptions: {
-				ajaxURL: 'api/frontend/v1/stv/Kontakt/getAdressen/' + this.uid,
+				ajaxURL: 'api/frontend/v1/stv/kontakt/getAdressen/' + this.uid,
 				ajaxRequestFunc: this.$fhcApi.get,
 				ajaxResponse: (url, params, response) => response.data,
 				//autoColumns: true,
@@ -169,21 +168,21 @@ export default{
 		}
 	},
 	watch: {
-		uid(){
+		uid() {
 			this.$refs.table.tabulator.setData('api/frontend/v1/stv/Kontakt/getAdressen/' + this.uid);
 		}
 	},
 	methods:{
-		actionNewAdress(){
+		actionNewAdress() {
 			this.$refs.newAdressModal.show();
 		},
-		actionEditAdress(adress_id){
+		actionEditAdress(adress_id) {
 			this.loadAdress(adress_id).then(() => {
 				if(this.addressData.adresse_id)
 					this.$refs.editAdressModal.show();
 			});
 		},
-		actionDeleteAdress(adress_id){
+		actionDeleteAdress(adress_id) {
 			this.loadAdress(adress_id).then(() => {
 				if(this.addressData.adresse_id)
 					if(this.addressData.heimatadresse)
@@ -205,10 +204,10 @@ export default{
 				this.reload();
 			});
 		},
-		reload(){
+		reload() {
 			this.$refs.table.reloadTable();
 		},
-		loadAdress(adress_id){
+		loadAdress(adress_id) {
 			return this.$fhcApi.get('api/frontend/v1/stv/kontakt/loadAddress/' + adress_id)
 				.then(result => {
 						this.addressData = result.data;
@@ -216,7 +215,7 @@ export default{
 				})
 				.catch(this.$fhcAlert.handleSystemError);
 		},
-		updateAddress(adress_id){
+		updateAddress(adress_id) {
 			this.$fhcApi.post('api/frontend/v1/stv/kontakt/updateAddress/' + adress_id,
 				this.addressData
 			).then(response => {
@@ -229,7 +228,7 @@ export default{
 				this.reload();
 			});
 		},
-		deleteAddress(adress_id){
+		deleteAddress(adress_id) {
 			this.$fhcApi.post('api/frontend/v1/stv/kontakt/deleteAddress/' + adress_id)
 				.then(response => {
 					this.$fhcAlert.alertSuccess(this.$p.t('ui', 'successDelete'));
@@ -247,13 +246,12 @@ export default{
 				return;
 
 			this.abortController.places = new AbortController();
-			CoreRESTClient
-				.get('components/stv/address/getPlaces/' + this.addressData.plz, undefined, {
+			this.$fhcApi
+				.get('api/frontend/v1/stv/address/getPlaces/' + this.addressData.plz, undefined, {
 					signal: this.abortController.places.signal
 				})
-				.then(result => CoreRESTClient.getData(result.data) || [])
 				.then(result => {
-					this.places = result;
+					this.places = result.data;
 				});
 /*				.catch(error => {
 					if (error.code == 'ERR_BAD_REQUEST') {
@@ -271,20 +269,19 @@ export default{
 					this.filteredFirmen = result.data.retval;
 				});
 		},
-		hideModal(modalRef){
+		hideModal(modalRef) {
 			this.$refs[modalRef].hide();
 		},
-		resetModal(){
+		resetModal() {
 			this.addressData = {};
 			this.addressData = this.initData;
 		},
 	},
-	created(){
-		CoreRESTClient
-			.get('components/stv/Address/getNations')
-			.then(result => CoreRESTClient.getData(result.data) || [])
+	created() {
+		this.$fhcApi
+			.get('api/frontend/v1/stv/address/getNations')
 			.then(result => {
-				this.nations = result;
+				this.nations = result.data;
 			})
 			.catch(this.$fhcAlert.handleSystemError);
 		this.$fhcApi
diff --git a/public/js/components/Stv/Studentenverwaltung/List/New.js b/public/js/components/Stv/Studentenverwaltung/List/New.js
index f23245b7c..351737e23 100644
--- a/public/js/components/Stv/Studentenverwaltung/List/New.js
+++ b/public/js/components/Stv/Studentenverwaltung/List/New.js
@@ -130,21 +130,21 @@ export default {
 
 			this.abortController.places = new AbortController();
 			this.$refs.form
-				.send(CoreRESTClient.get(
-					'components/stv/address/getPlaces/' + this.formData.address.plz,
+				.get(
+					'api/frontend/v1/stv/address/getPlaces/' + this.formData.address.plz,
 					undefined,
 					{
 						signal: this.abortController.places.signal
 					}
-				))
+				)
 				.then(result => {
-					this.places = result
+					this.places = result.data
 				})
 				.catch(error => {
 					if (error.code != "ERR_CANCELED")
 						window.setTimeout(this.loadPlaces, 100);
 					else
-						console.error(error);
+						this.$fhcAlert.handleSystemError(error);
 				});
 		},
 		loadStudienplaene() {
diff --git a/public/js/components/Stv/Studentenverwaltung/Verband.js b/public/js/components/Stv/Studentenverwaltung/Verband.js
index 92d343f08..bdc5500a6 100644
--- a/public/js/components/Stv/Studentenverwaltung/Verband.js
+++ b/public/js/components/Stv/Studentenverwaltung/Verband.js
@@ -53,8 +53,8 @@ export default {
 					});
 					this.loading = true;
 					
-					CoreRESTClient
-						.get("components/stv/verband/" + node.data.link)
+					this.$fhcApi
+						.get('api/frontend/v1/stv/verband/' + node.data.link)
 						.then(result => result.data)
 						.then(result => {
 							const subNodes = result.map(this.mapResultToTreeData);
@@ -128,7 +128,12 @@ export default {
 			
 			let promises = [];
 			for (let parent in sortedInParents)
-				promises.push(CoreRESTClient.get("components/stv/verband/" + (parent == '_' ? '' : parent)).then(res => res.data).then(res => res.filter(node => sortedInParents[parent].includes(node.link + ''))));
+				promises.push(
+					this.$fhcApi
+						.get('api/frontend/v1/stv/verband/' + (parent == '_' ? '' : parent))
+						.then(res => res.data)
+						.then(res => res.filter(node => sortedInParents[parent].includes(node.link + '')))
+				);
 			
 			// NOTE(chris): merge the resulting arrays and transform them to an associative one
 			let result = [].concat.apply([], await Promise.all(promises)).reduce((o, node) => {
@@ -171,8 +176,8 @@ export default {
 		}
 	},
 	mounted() {
-		CoreRESTClient
-			.get("components/stv/verband")
+		this.$fhcApi
+			.get('api/frontend/v1/stv/verband')
 			.then(result => result.data)
 			.then(result => {
 				this.nodes = result.map(this.mapResultToTreeData);