diff --git a/CHANGELOG b/CHANGELOG
index ebe61a3335..9aa2a71af4 100644
--- a/CHANGELOG
+++ b/CHANGELOG
@@ -1,3 +1,4 @@
+* Add authentication services
 * Schedule actions using server timezone
 * Reset the user sessions less often
 * Add straight values to wizard state view
diff --git a/trytond/protocols/dispatcher.py b/trytond/protocols/dispatcher.py
index 26388af366..d12dc1e7d5 100644
--- a/trytond/protocols/dispatcher.py
+++ b/trytond/protocols/dispatcher.py
@@ -26,6 +26,8 @@ from trytond.wsgi import app
 
 from .wrappers import with_pool
 
+__all__ = ['register_authentication_service']
+
 logger = logging.getLogger(__name__)
 
 ir_configuration = Table('ir_configuration')
@@ -83,6 +85,7 @@ def root(request, *args):
     methods = {
         'common.server.version': lambda *a: __version__,
         'common.db.list': db_list,
+        'common.authentication.services': authentication_services,
         }
     return methods[request.rpc_method](request, *request.rpc_params)
 
@@ -112,6 +115,17 @@ def db_list(request, *args):
         return transaction.database.list(hostname=hostname)
 
 
+def authentication_services(request):
+    return _AUTHENTICATION_SERVICES
+
+
+def register_authentication_service(name, url):
+    _AUTHENTICATION_SERVICES.append((name, url))
+
+
+_AUTHENTICATION_SERVICES = []
+
+
 @app.auth_required
 @with_pool
 def list_method(request, pool):