Longbridge Developers

https://open.longbridge.com

Longbridge Developers is the official developer platform for Longbridge — providing programmatic access to real-time market data, trading, account management, and AI integrations across HK, US, and CN markets.

Repository structure

/
├── docs/                        # Site content and VitePress config
│   ├── .vitepress/              # Theme, components, markdown plugins, locale configs
│   ├── en/                      # English content (root locale)
│   ├── zh-CN/                   # Simplified Chinese content
│   └── zh-HK/                   # Traditional Chinese content
├── openapi/                     # Submodule: OpenAPI spec + SDK source (openapi, Python, Rust, etc.)
├── openapi-go/                  # Submodule: Go SDK
├── longbridge-terminal/         # Submodule: CLI binary source (longbridge)
├── skills/longbridge/           # AI Skill — knowledge base for AI agents
├── scripts/                     # Build scripts (llms.txt generation, markdown normalization)
├── openapi.yaml                 # Canonical API specification (source of truth for API Reference)
└── CONTRIBUTING.md              # Contribution guidelines for AI agents and humans

What you can build

Automated trading strategies and order management
Real-time quote dashboards and data pipelines
Portfolio trackers and risk monitoring tools
AI agents with live market data and trading capabilities

Access methods

Method	Best for
SDK	Python, Rust, Node.js, Go, Java, C++ apps
HTTP / WebSocket API	Any language, custom integrations
CLI (`longbridge`)	Terminal workflows, scripting, AI tool-calling
MCP	AI coding assistants (Cursor, Claude, ChatGPT, etc.)
Skill	Give any AI direct knowledge of Longbridge APIs

Quick start

1. Open a Longbridge account

Download the Longbridge App and complete account onboarding.

2. Enable OpenAPI access

3. Choose your integration

CLI — fastest way to get started:

brew install --cask longbridge/tap/longbridge-terminal
longbridge auth login
longbridge quote TSLA.US NVDA.US 700.HK

Python SDK:

pip install longbridge

MCP for AI assistants — add to your MCP client config:

{
  "mcpServers": {
    "longbridge": {
      "url": "https://openapi.longbridge.com/mcp"
    }
  }
}

AI Skill — give your AI full knowledge of Longbridge APIs:

npx skills add longbridge/developers -g -y

Market coverage

Market	Instruments
Hong Kong	Equities, ETFs, Warrants, CBBCs, Hang Seng Index
United States	Stocks, ETFs, OPRA Options, Nasdaq Index
China A-share	Stocks, ETFs, Index

Documentation

Getting Started — https://open.longbridge.com/docs/getting-started
API Reference — https://open.longbridge.com/docs/api
SDK Reference — https://open.longbridge.com/sdk
CLI Reference — https://open.longbridge.com/docs/cli
MCP Setup — https://open.longbridge.com/docs/mcp
LLM / AI Integration — https://open.longbridge.com/docs/llm
Changelog — https://open.longbridge.com/docs/changelog

LLM-friendly docs

All documentation pages are available as Markdown by appending .md to any URL:

https://open.longbridge.com/docs/getting-started.md
https://open.longbridge.com/docs/quote/pull/static.md

A machine-readable index is available at:

https://open.longbridge.com/llms.txt

Pricing

OpenAPI access is free for Longbridge Integrated Account holders. No additional fees for activating or using the API. Standard brokerage transaction fees apply to trades.

Contributing

Local development setup

git clone --recurse-submodules https://github.com/longbridge/developers.git
cd developers
bun install
bun run dev

If you already cloned without --recurse-submodules:

git submodule update --init --recursive
bun run dev

The dev server starts at http://localhost:5173 and connects to the canary API. Use bun run dev:prod to connect to the production API instead.

See CONTRIBUTING.md for full contribution guidelines.

longbridge