diff --git a/src/langsmith/trace-claude-code.mdx b/src/langsmith/trace-claude-code.mdx
index ac3f971a22..565ec50121 100644
--- a/src/langsmith/trace-claude-code.mdx
+++ b/src/langsmith/trace-claude-code.mdx
@@ -85,6 +85,7 @@ For each Claude Code project (a Claude Code project is a directory with Claude C
 - `CC_LANGSMITH_API_KEY` - Your LangSmith API key
 - `CC_LANGSMITH_PROJECT` - The LangSmith project name where traces are sent
 - (optional) `CC_LANGSMITH_DEBUG: "true"` - Enables detailed debug logging. Remove or set to `false` to disable tracing.
+- (optional) `CC_LANGSMITH_ENDPOINT`: "https://eu.api.smith.langchain.com" if your langsmith instance is in europe.
 
 ```json
 {