LongPort OpenAPI

Stable · Safe · Fast

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Multiple Access Methods

Support HTTP/WebSocket/Longbridge binary protocol and multi-language SDK, allowing flexible access

Getting Started

Resilient Scalability

Hybrid cloud-native microservices with 24/7 uptime, off-site failover, and elastic scaling for continuous reliability.

Ultra Latency

Lightning-fast transactions with as low as 10ms delay, powered by cloud-native distributed in-memory databases and stateless architecture

Real-time Quotes

Real-time quotes with low latency Support all product types in HK, US, and CN markets Advanced quotes such as Level 2 and National BBO are available Support access to historical candlestick quotes data

Lightning-fast Trading

Support the trading of stocks, options, bonds, funds, and other products in the US&HK markets Supports multiple order types such as general order, conditional order, and attach order Functions include placing orders, amending orders, canceling orders, viewing account positions and funds

AI Friendly

Support LLM standards, including LLMs Text, MCP etc., for you to easily use AI to build your idea.

All Product Types Supported

Open an account to receive HK market LV2 quotes and CN market LV1 quotes for free

HK MarketHK Market

Product	Trade	Quotes
Stocks
ETFs
Warrant&CBBC

US MarketUS Market

Product	Trade	Quotes
Stocks
ETFs
Options

China ConnectCN Market

Product	Trade	Quotes
Stocks
ETFs