diff --git a/litellm/proxy/_experimental/mcp_server/rest_endpoints.py b/litellm/proxy/_experimental/mcp_server/rest_endpoints.py
index 5395142eb9a..56aeb31984a 100644
--- a/litellm/proxy/_experimental/mcp_server/rest_endpoints.py
+++ b/litellm/proxy/_experimental/mcp_server/rest_endpoints.py
@@ -857,6 +857,7 @@ if MCP_AVAILABLE:
     ########################################################
     from litellm.proxy.management_endpoints.mcp_management_endpoints import (
         NewMCPServerRequest,
+        _inherit_credentials_from_existing_server,
     )
 
     def _extract_credentials(
@@ -1074,6 +1075,10 @@ if MCP_AVAILABLE:
                 },
             )
 
+        new_mcp_server_request = _inherit_credentials_from_existing_server(
+            new_mcp_server_request
+        )
+
         # For OpenAPI spec servers, generate tools from the spec directly
         if new_mcp_server_request.spec_path:
             return await _preview_openapi_tools(new_mcp_server_request.spec_path)