Huobi

Huobi API is the official application programming interface for Huobi's cryptocurrency exchange platform, enabling programmatic access to spot trading, futures, margin trading, asset management, and market data. It supports both REST and WebSocket protocols, allowing developers to perform trading operations, query account balances, manage sub-users, and subscribe to real-time market updates. The API is designed for professional traders, algorithmic trading systems, and institutional users who require reliable, low-latency access to Huobi's extensive crypto asset offerings.

The API offers a wide range of endpoints covering market data retrieval (candlesticks, tickers, order book depth, trade details), account and wallet management (balances, deposits, withdrawals), order placement and cancellation, margin loans, and sub-user management. Authentication is secured via API keys with granular permissions (read, trade, withdraw) and supports IP binding for enhanced security. The WebSocket interface provides real-time push updates for market data and order/account changes, optimized for low latency and high throughput.

Huobi API differentiates itself with comprehensive coverage of trading features including conditional orders, batch order placement, dead man's switch for risk management, and detailed margin loan operations for isolated and cross margin accounts. It also supports sub-user account hierarchies with delegated API key management and asset transfer capabilities. The API is well-documented with SDKs available in multiple languages (Java, Python, C++, C#, Go) and an interactive API Explorer for testing. Developers are advised to access the API from AWS Japan for optimal latency and to follow best practices such as IP binding and signature generation rules. The testnet environment has been discontinued due to low usage, encouraging users to develop directly against the live environment.