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api/.env.example

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+# Environment Configuration
+ENVIRONMENT="local"
+LOG_LEVEL="DEBUG"
+
+# Backend API Configuration
+BACKEND_API_ENDPOINT="your-ngrok-url.ngrok-free.app"
+
+# Database Configuration
+DATABASE_URL="postgresql+asyncpg://postgres:postgres@localhost:5432/postgres"
+REDIS_URL="redis://:redissecret@localhost:6379"
+
+# Superuser Configuration
+SUPERUSER_PASSWORD="your-secure-password"
+
+# AI Service API Keys (commented out by default)
+# CARTESIA_API_KEY="sk_car_xxxxxxxxxxxxxxxxx"
+# DEEPGRAM_API_KEY="xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx"
+
+# LiveKit Configuration (optional)
+# LIVEKIT_API_KEY="APIxxxxxxxxxx"
+# LIVEKIT_API_SECRET="xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx"
+# LIVEKIT_URL="wss://your-livekit-instance.livekit.cloud"
+
+# AWS S3 Configuration (required for SaaS mode)
+AWS_ACCESS_KEY_ID="AKIAXXXXXXXXXXXXXXXXX"
+AWS_SECRET_ACCESS_KEY="xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx"
+S3_BUCKET="your-s3-bucket-name"
+S3_REGION="us-east-1"
+
+# Stack Auth Configuration
+STACK_AUTH_API_URL="https://api.stack-auth.com"
+STACK_AUTH_PROJECT_ID="xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx"
+STACK_SECRET_SERVER_KEY="ssk_xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx"
+STACK_PUBLISHABLE_CLIENT_KEY="pck_xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx"
+
+# Twilio Configuration
+TWILIO_ACCOUNT_SID="SKxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx"
+TWILIO_AUTH_TOKEN="xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx"
+TWILIO_FROM_NUMBER="+1234567890"
+
+# Tracing and Analytics
+ENABLE_TRACING=true
+LANGFUSE_SECRET_KEY="sk-lf-xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx"
+LANGFUSE_PUBLIC_KEY="pk-lf-xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx"
+LANGFUSE_HOST="https://langfuse.your-domain.com"
+
+# AI Service API Keys
+GROQ_API_KEY="gsk_xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx"
+NEUPHONIC_API_KEY="xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx.xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx"
+NANGO_API_KEY="xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx"
+
+# Default API Keys for new user signups
+OPENAI_API_KEY="sk-proj-xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx"
+ELEVENLABS_API_KEY="sk_xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx"
+DEEPGRAM_API_KEY="xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx"
+GOOGLE_API_KEY="AIzaSyXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX"
+
+# Smart Turn Configuration
+ENABLE_SMART_TURN=true
+SMART_TURN_WS_SERVICE_ENDPOINT="wss://your-gpu-server.domain.com/ws"
+SMART_TURN_HTTP_SERVICE_KEY="xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx="
+
+# SSL Key Logging (for debugging)
+# SSLKEYLOGFILE=/path/to/ssl-keys.log
+
+# Turn Logging
+ENABLE_TURN_LOGGING=true
+
+# OpenTelemetry Configuration
+OTEL_PYTHON_LOGGING_AUTO_INSTRUMENTATION_ENABLED=true
+SIGNOZ_EXPORTER_ENDPOINT="ingest.us.signoz.cloud:443"
+SIGNOZ_EXPORTER_HEADERS="signoz-ingestion-key=xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx"
+
+# Storage Configuration
+# User mode: 'saas' (default) uses AWS S3; 'oss' uses local MinIO
+USER_MODE=saas
+
+# OSS (MinIO) Configuration - only required when USER_MODE=oss
+# These values are optional and will use defaults if not provided
+MINIO_ENDPOINT=localhost:9000
+MINIO_ACCESS_KEY=minioadmin
+MINIO_SECRET_KEY=minioadmin
+MINIO_BUCKET=voice-audio
+MINIO_SECURE=false