# Vercel AI Gateway # Automatically authenticated when deployed on Vercel # For local development, get your key from https://vercel.com/ai-gateway AI_GATEWAY_API_KEY= # AI Model Configuration # Default: anthropic/claude-sonnet-4-6 AI_GATEWAY_MODEL=anthropic/claude-sonnet-4-6 # ElevenLabs Text-to-Speech (optional, for NPC dialogue) ELEVENLABS_API_KEY= # Upstash Redis for rate limiting (optional, no-op if not set) KV_REST_API_URL= KV_REST_API_TOKEN= RATE_LIMIT_PER_MINUTE=10 RATE_LIMIT_PER_DAY=100