Longbridge Developers | APIs, LLM, MCP, CLI & More

Powering

Real-time market data, trading, and financial intelligence — delivered through AI Skill, CLI, MCP, SDK and OpenAPI for developers worldwide.

Platform Architecture

One gateway, every access method — from SDK to real-time WebSocket streams

Developer Tools

Everything you need to build, test, and ship financial applications

AI Skill

Investment analysis agent for real-time quotes, portfolio data, news sentiment, and market intelligence — works with any AI platform.

AI Agent

CLI

AI-native terminal tool with interactive TUI dashboard, 50+ commands, and --format json output for scripting and AI agent integration.

TUI--format json

MCP

Hosted MCP service with OAuth 2.1 — zero-config integration for Claude Code, Cursor, Codex, Zed, and Cherry Studio.

OAuth 2.1Hosted

SDK

Get your first quote in minutes. 7 languages — Python, Node.js, Rust, Go, Java, C, C++ — with async support and built-in rate control.

PythonRustGo+ 4

Paper Trading

Test orders with real market data at zero cost. Simulated matching based on live bid-ask spreads, no securities account required.

SandboxZero Cost

LLM Ready

llms.txt standard compliance, all docs available as .md for RAG pipelines, and Accept: text/markdown header support on longbridge.com.

Markdownllms.txt

Longbridge CLI

AI-native command-line tool covering every OpenAPI

CLI Documentation

brew install --cask longbridge/tap/longbridge-terminal

AI Skill

Unlock market insights, deep research and intelligent trading for your AI

With Longbridge Skill, your AI assistant can screen stocks, decode earnings, track insider moves, and place orders — all in plain conversation.

Copy and send to any AI — it will walk you through the installation:

Install Longbridge Skill following the guide:https://developers.longbridge.com/skill/install.md

Or install via CLI

bunx skills add longbridge/developers -g -y

Claude Code

Codex

Cursor

Gemini

+ any Skill-compatible agent

Skill Installation Guide

MCP

Connect your AI assistant to live market data — no API keys required

Hosted HTTP MCP service with OAuth 2.1 authentication. Your AI coding assistant gets real-time quotes, account info, and trading capabilities in one connection.

$claude mcp add --transport http longbridge https://openapi.longbridge.com/mcp

OAuth 2.1 — browser opens automatically on first use. No API key needed.

MCP Documentation

API Capabilities

Everything you need to build trading and market data applications

Market DataReal-time quotes, order depth, candlestick, intraday, capital flow, and push subscriptions

30+

Real-time quotesOrder book depthCandlestick chartsIntraday timelineCapital flowWebSocket push

Trading & OrdersSubmit, replace, and withdraw orders. Track positions, balance, and execution history

14+

Submit ordersModify & cancelPositions & balanceExecution historyOrder status push

DerivativesFull option chains with Greeks, warrants listing, and real-time derivative quotes

Option chains + GreeksWarrant filteringIssuer directoryDerivative quotes

Financial ResearchFinancial statements, valuation metrics, dividend history, EPS forecasts, and analyst ratings

Financial statementsValuation metricsDividend historyEPS forecastsAnalyst ratings

Content & NewsReal-time news feeds, community discussions, topics, and engagement metrics

News feedsCommunity topicsDiscussionsEngagement data

OpenAPI SDK

Production-grade SDKs with real-time streaming and full trading capabilities

7 language SDKs built on a Rust core — subscribe to live market data, place orders, and monitor positions with async/await patterns and built-in rate limiting.

from longbridge.openapi import QuoteContext, Config, OAuthBuilder

oauth = OAuthBuilder("your-client-id").build(
    lambda url: print("Visit:", url))
config = Config.from_oauth(oauth)
ctx = QuoteContext(config)

resp = ctx.quote(["AAPL.US", "TSLA.US", "NVDA.US", "GOOG.US"])
print(resp)

pip3 install longbridge

Multi-Market

US, HK, SG, CN (SH/SZ) — stocks, ETFs, options, warrants

USHKSGCN

Free & Paper Trading

$API charges

No additional API charges. Paper trading with real market data, no securities account required.

Real-time Push

WebSocket push for quotes, order depth, trades, and order status updates

Complete Trading

Submit, replace, withdraw orders. Trailing stops, conditional orders, and auction orders.

OAuth 2.0 + Async

Automatic token management with modern async/await patterns and built-in rate control.

SDK Documentation

Start Building in Minutes

Set up your environment, authenticate, and make your first API call — everything you need to go from zero to live data.

Authentication Setup

Setup Guide

API Reference

Browse 100+ endpoints for quotes, trading, portfolio, and content. Try requests directly in the browser.

Explore APIs

Install CLI

One-line install for macOS, Linux, and Windows. 50+ commands with interactive TUI and JSON output.

Install Now