LongPort OpenAPI SDK

Programmatic trading and market data APIs for building investment tools across HK, US, and CN markets

Data verified Sep 18, 2026

Pundit
Score

Best for: Quantitative Traders

About LongPort OpenAPI SDK

LongPort OpenAPI SDK gives developers and quant-minded investors programmatic access to real-time and historical quotes, order management, and account/portfolio data across Hong Kong, US, and China Connect markets. It's aimed at people building automated trading systems, strategy-analysis tools, and market-data pipelines, offering HTTP/WebSocket APIs plus SDKs in Rust, Python, Node.js, Java, C, C++, and Go. What sets it apart is its multi-market coverage paired with an AI-friendly MCP server and low-latency (as low as 10ms) infrastructure for real-time streaming.

Screenshots

Commonly Cited Strengths & Limitations

Strengths

Multi-language SDK support (Rust, Python, Node.js, Java, C, C++, Go)
Coverage of HK, US, and CN markets
Low-latency real-time quotes and streaming
AI-friendly MCP server support
Open source

Common Use Cases

Building automated trading tools
Developing quote and strategy analysis tools
Programmatically querying account portfolio and positions
Subscribing to real-time market data and order updates

Details

Pricing Model: Unknown
Category: FinTech

Who is LongPort OpenAPI SDK for?

Quantitative Traders

Build and run automated trading strategies that place, amend, and cancel orders programmatically across HK, US, and CN markets.

Fintech Developers

Integrate real-time and historical quotes, order flows, and portfolio data into custom investment apps using SDKs in seven languages.

AI Agent Builders

Use the MCP server to wire LongPort market data and trading into AI-native workflows and LLM agents.

Frequently Asked Questions

Does LongPort OpenAPI SDK have an API?

Yes, LongPort OpenAPI SDK provides an API for developers.

Is LongPort OpenAPI SDK open source?

Yes, LongPort OpenAPI SDK is open source.

What does LongPort OpenAPI SDK integrate with?

LongPort OpenAPI SDK integrates with Rust, Python, Node.js, Java, C, C++, Go, MCP, and more.

Is LongPort OpenAPI SDK cloud-based or self-hosted?

LongPort OpenAPI SDK is offered as a cloud-based (SaaS) deployment.

Who is LongPort OpenAPI SDK best for?

LongPort OpenAPI SDK is best suited for Quantitative Traders, Fintech Developers, AI Agent Builders.

What can I use LongPort OpenAPI SDK for?

Common uses for LongPort OpenAPI SDK include building automated trading tools, developing quote and strategy analysis tools, programmatically querying account portfolio and positions, subscribing to real-time market data and order updates.

How does LongPort OpenAPI SDK compare to AlphaResearch?

LongPort OpenAPI SDK and AlphaResearch are both used for fintech -- specifically investment-research-tools. See the full side-by-side comparison for pricing and feature differences.