MetaTraderAPI.dev is a unified REST & WebSocket API for MetaTrader 4 and 5 that lets you read account data (balance, equity, positions, orders, history), stream real-time market quotes, and place/modify/close trades from any tech stack—without running the MT terminal. Built for scale, it supports multi-account orchestration (one-to-many trade copying), portfolio balancing and risk controls, and end-to-end automation for funds, brokers, prop firms, algo traders, and trading communities. A web dashboard handles account linking, API keys, and an in-browser API playground; Pro tiers add unlimited accounts/requests, dedicated cloud servers, WebSocket streaming, and 24/7 support. In short: the reliable MT4/MT5 API you can deploy fast and grow with—the API MetaQuotes never built.