MCP Blockchain Server

# Server PORT=3000 NODE_ENV=development LOG_LEVEL=debug # Database DATABASE_URL=postgres://username:password@localhost:5432/mcp_blockchain # Redis (optional) REDIS_URL=redis://localhost:6379 # JWT JWT_SECRET=your-jwt-secret-change-this JWT_EXPIRES_IN=1d # Blockchain INFURA_API_KEY=your-infura-api-key ETHERSCAN_API_KEY=your-etherscan-api-key DEFAULT_NETWORK=sepolia # Web DApp WEB_DAPP_URL=http://localhost:3001 # Rate limiting RATE_LIMIT_WINDOW_MS=60000 RATE_LIMIT_MAX=100