diff --git a/.env.example b/.env.example
index d5ba85e6a..3858d8fd7 100644
--- a/.env.example
+++ b/.env.example
@@ -19,6 +19,10 @@ TASK_WORKER_ENABLED=true
 WEB_SEARCH_ENABLED=true
 # Optional OpenAI-compatible Responses API endpoint:
 # OPENAI_BASE_URL=
+# Optional Anthropic endpoint override; a trailing /v1 is stripped (the SDK adds /v1 itself):
+# ANTHROPIC_BASE_URL=
+# Optional Google AI endpoint override; a trailing /v1beta is stripped (the SDK adds /v1beta itself):
+# GOOGLE_GENERATIVE_AI_BASE_URL=
 # For a gateway model ID such as vendor/model, set MODEL=openai/vendor/model.
 
 # Live Google workspace: WORKSPACE_MODE=live, AGENT_BACKEND=model.