diff --git a/.gitignore b/.gitignore
index 4b99176..f4153db 100644
--- a/.gitignore
+++ b/.gitignore
@@ -13,6 +13,9 @@ wheels/
 # Virtual environments
 .venv
 
+# Environment variables file
+.env
+
 # Rust-generated files
 debug
-target
+target
\ No newline at end of file
diff --git a/mcp-client-python/.env.example b/mcp-client-python/.env.example
new file mode 100644
index 0000000..80a79e6
--- /dev/null
+++ b/mcp-client-python/.env.example
@@ -0,0 +1 @@
+ANTHROPIC_API_KEY=
\ No newline at end of file