diff --git a/src/briar/api/api.py b/src/briar/api/api.py
index b47d6de7f5be502649d25413b58c46d646c8fc99..a5aab812b361cf0e75df4d671ca49e73b1f99c5e 100644
--- a/src/briar/api/api.py
+++ b/src/briar/api/api.py
@@ -2,6 +2,8 @@
 # SPDX-License-Identifier: AGPL-3.0-only
 # License-Filename: LICENSE.md
 
+from briar.api.constants import Constants
+
 from subprocess import Popen, PIPE, STDOUT
 from threading import Thread
 from time import sleep
@@ -11,10 +13,13 @@ from urllib.request import urlopen
 
 class Api:
 
+    auth_token = None
     _process = None
 
     def __init__(self, headless_jar):
         self._command = ['java', '-jar', headless_jar]
+        self.constants = Constants()
+        self._load_auth_token()
 
     def has_account(self):
         from pathlib import Path
@@ -57,9 +62,10 @@ class Api:
         while self.is_running():
             try:
                 sleep(0.1)
-                print(urlopen("http://localhost:7000/").getcode())
+                print(urlopen(self.constants._get_base_url()).getcode())
             except HTTPError as e:
                 if(e.code == 404):
+                    self._load_auth_token()
                     callback(True)
                     return
             except URLError as e:
@@ -78,3 +84,10 @@ class Api:
         self._process.communicate((credentials[0] + '\n' +
                                    credentials[1] + '\n' +
                                    credentials[1] + '\n').encode("utf-8"))
+
+    def _load_auth_token(self):
+        if not self.has_account():
+            return
+        with open(self.constants.get_auth_token(), 'r') as file:
+            self.auth_token = file.read()
+
diff --git a/src/briar/api/constants.py b/src/briar/api/constants.py
new file mode 100644
index 0000000000000000000000000000000000000000..aab8391ebfa75b4d354707ac85e7f6797ab810a8
--- /dev/null
+++ b/src/briar/api/constants.py
@@ -0,0 +1,22 @@
+# Copyright (c) 2019 Nico Alt
+# SPDX-License-Identifier: AGPL-3.0-only
+# License-Filename: LICENSE.md
+
+from os.path import join
+from pathlib import Path
+from urllib.parse import urljoin
+
+
+class Constants:
+
+    _BRIAR_AUTH_TOKEN = 'auth_token'
+    _BRIAR_DIR = '.briar'
+
+    _HOST = 'http://localhost:7000'
+    _VERSION_SUFFIX = 'v1'
+
+    def get_auth_token(self):
+        return join(Path.home(), self._BRIAR_DIR, self._BRIAR_AUTH_TOKEN)
+
+    def _get_base_url(self):
+        return urljoin(self._HOST, self._VERSION_SUFFIX)