diff --git a/tools/delegate_tool.py b/tools/delegate_tool.py
index 093be11c01..ebf771d159 100644
--- a/tools/delegate_tool.py
+++ b/tools/delegate_tool.py
@@ -1322,6 +1322,9 @@ def _resolve_delegation_credentials(cfg: dict, parent_agent) -> dict:
         elif base_url_hostname(configured_base_url) == "api.anthropic.com":
             provider = "anthropic"
             api_mode = "anthropic_messages"
+        elif "api.kimi.com/coding" in base_lower:
+            provider = "custom"
+            api_mode = "anthropic_messages"
 
         return {
             "model": configured_model,