diff --git a/halfapi/lib/domain_middleware.py b/halfapi/lib/domain_middleware.py
index 448535d..46fccc4 100644
--- a/halfapi/lib/domain_middleware.py
+++ b/halfapi/lib/domain_middleware.py
@@ -81,4 +81,13 @@ class DomainMiddleware(BaseHTTPMiddleware):
             # Set the http header "x-acl" if an acl was used on the route
             response.headers['x-acl'] = self.request.scope['acl_pass']
 
+        if 'args' in self.request.scope:
+            # Set the http headers "x-args-required" and "x-args-optional"
+
+            if 'required' in self.request.scope['args']:
+                response.headers['x-args-required'] = \
+                    ','.join(self.request.scope['args']['required'])
+            if 'optional' in self.request.scope['args']:
+                response.headers['x-args-optional'] = \
+                    ','.join(self.request.scope['args']['optional'])
         return response
diff --git a/halfapi/lib/routes.py b/halfapi/lib/routes.py
index 0c0be13..d2fa21a 100644
--- a/halfapi/lib/routes.py
+++ b/halfapi/lib/routes.py
@@ -51,6 +51,8 @@ def route_acl_decorator(fct: Callable, params: List[Dict]):
                 logger.debug(f'ACL OK for current route ({fct} - {param.get("acl")})')
 
                 req.scope['acl_pass'] = param['acl'].__name__
+                if 'args' in param:
+                    req.scope['args'] = param['args']
 
                 if 'check' in req.query_params:
                     return PlainTextResponse(param['acl'].__name__)