diff --git a/endpoint/controllers/main.py b/endpoint/controllers/main.py
index afae8a10..ee31a3a3 100644
--- a/endpoint/controllers/main.py
+++ b/endpoint/controllers/main.py
@@ -17,7 +17,7 @@ def _handle_endpoint(self, env, model, endpoint_route, **params):
         if not endpoint:
             raise NotFound()
         endpoint._validate_request(request)
-        result = endpoint._handle_request(request)
+        result = endpoint._handle_request(request, querystring_params=params)
         return self._handle_result(result)
 
     def _handle_result(self, result):
diff --git a/endpoint/models/endpoint_mixin.py b/endpoint/models/endpoint_mixin.py
index 1e10609a..2cb52d9d 100644
--- a/endpoint/models/endpoint_mixin.py
+++ b/endpoint/models/endpoint_mixin.py
@@ -105,8 +105,10 @@ def _default_code_snippet_docs(self):
             'sha3_512', 'shake_128', 'shake_256', 'blake2b',
             'blake2s', 'md5', 'new'
         * hmac: Python 'hmac' library. Use 'new' to create HMAC objects.
+        * querystring_params
 
-        Must generate either an instance of ``Response`` into ``response`` var or:
+        Must assign a ``result`` variable, with either an instance of ``Response``,
+        or a dict containiny any of the keys:
 
         * payload
         * headers
@@ -187,10 +189,11 @@ def _code_snippet_log_func(self, message, level="info"):
                 ),
             )
 
-    def _handle_exec__code(self, request):
+    def _handle_exec__code(self, request, querystring_params=None):
         if not self._code_snippet_valued():
             return {}
         eval_ctx = self._get_code_snippet_eval_context(request)
+        eval_ctx["querystring_params"] = querystring_params or {}
         snippet = self.code_snippet
         safe_eval.safe_eval(snippet, eval_ctx, mode="exec", nocopy=True)
         result = eval_ctx.get("result")
@@ -238,14 +241,18 @@ def _get_handler(self):
                 _("Missing handler for exec mode %s") % self.exec_mode
             ) from e
 
-    def _handle_request(self, request):
+    def _handle_request(self, request, querystring_params=None):
         # Switch user for the whole process
         self_with_user = self
         if self.exec_as_user_id:
             self_with_user = self.with_user(user=self.exec_as_user_id)
         handler = self_with_user._get_handler()
         try:
-            res = handler(request)
+            # In case the handler does not support params
+            if querystring_params:
+                res = handler(request, querystring_params=querystring_params)
+            else:
+                res = handler(request)
         except self._bad_request_exceptions() as orig_exec:
             self._logger.error("_validate_request: BadRequest")
             raise werkzeug.exceptions.BadRequest() from orig_exec