diff --git a/README.md b/README.md
index d0a6b409d..8fd87d3b1 100644
--- a/README.md
+++ b/README.md
@@ -278,6 +278,14 @@ 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