diff --git a/getting_started/langchain/invoke/.env.example b/getting_started/langchain/invoke/.env.example
index 09e5c3d..a3700a5 100644
--- a/getting_started/langchain/invoke/.env.example
+++ b/getting_started/langchain/invoke/.env.example
@@ -3,6 +3,7 @@ LAUNCHDARKLY_SDK_KEY=
 
 # Provider API keys - fill in the ones for the provider(s) your AI config uses
 OPENAI_API_KEY=
+ANTHROPIC_API_KEY=
 GOOGLE_API_KEY=
 AWS_ACCESS_KEY_ID=
 AWS_SECRET_ACCESS_KEY=