diff --git a/ccserver/conf.py b/ccserver/conf.py
index 881012eb708c5b5ab99471921d208e3d5e6eca38..36cb8c025060efa3436fa9bf3eaf0194231befbd 100644
--- a/ccserver/conf.py
+++ b/ccserver/conf.py
@@ -217,6 +217,22 @@ class CCConf(object):
 
             self._set_conf(login, conf, create=True)
 
+    def list_accounts(self):
+        '''
+        List all registered accounts.
+
+        :return: :class:`tuple` of :class:`str`, each item being an
+            account login
+        '''
+
+        logins = []
+        for filename in os.listdir(self._path):
+            login, ext = os.path.splitext(filename)
+            if ext == '.json':
+                logins.append(login)
+
+        return tuple(logins)
+
 
     class UnknownAccount(Exception):
         pass