diff --git a/README.md b/README.md
index 01a223d3b..b52d3b1cc 100644
--- a/README.md
+++ b/README.md
@@ -282,6 +282,14 @@ DeepSeek Api Key.
 
 DeepSeek Api Url.
 
+### `XAI_API_KEY` (optional)
+
+Grok Api Key.
+
+### `XAI_URL` (optional)
+
+Grok Api Url.
+
 ### `HIDE_USER_API_KEY` (optional)
 
 > Default: Empty