diff --git a/.env.example b/.env.example
index b25ecc4..cc9832b 100644
--- a/.env.example
+++ b/.env.example
@@ -6,6 +6,7 @@ AUTH_SECRET=****
 
 # AI Gateway API Key (required for non-Vercel deployments)
 # For Vercel deployments, OIDC tokens are used automatically
+# https://vercel.com/ai-gateway
 AI_GATEWAY_API_KEY=****