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LONGBRIDGE OPENAPI

Real-time markets,
built for AI.

Real-time market data, quantitative research, and AI-powered analysis — through AI Skill, CLI, MCP, SDK and OpenAPI. One credential, every market, zero overhead. Explore live market data across every market.

Get StartedRead the Docs
4markets
US · HK · SG · CN
7SDKs
Python · Rust · Node · Go · Java · C · C++
100+endpoints
Quote · Trade · Research · News
$0OpenAPI access
No monthly fees
OFFICIAL INTEGRATION · NOW LIVE

ChatGPTClaudeAI that reads the market.

Longbridge is live on ChatGPT Apps and Claude Connectors — check quotes, screen ideas, view positions. One-tap OAuth, no API keys.

ChatGPT
Open in ChatGPT
Claude
Add Claude Connector
FEATURES

Everything you need for market analysis, quantitative research, and intelligent trading.

Compare all
AI Skill

Investment analysis agent for any AI

Use Longbridge in ChatGPT Apps with @longbridge, or give Claude, Cursor, Gemini, Codex, Zed, and Cherry Studio live market intelligence.

Agent Skills
CLI

AI-native terminal for trading

Interactive TUI dashboard, 130+ commands, and --format json output for scripting and AI agent integration. OAuth 2.0 works on SSH and headless servers.

130+ cmds--format jsonTUI
MCP

ChatGPT App + hosted MCP

Official ChatGPT App plus hosted OAuth 2.1 MCP for Codex, Claude Code, Cursor, Zed, and Cherry Studio.

ChatGPT AppOAuth 2.1
SDK

7 languages, one Rust core

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

PythonRustGo+ 4
Paper Trading

Sandbox at zero cost

Test orders with real market data — simulated matching based on live bid-ask spreads. No securities account required.

SandboxZero Cost
LLM Ready

Built for retrieval & RAG

llms.txt standard compliance, every doc 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.

  • 130+ commands
    Market data, trading, fundamentals — all in your shell.
  • --format json output
    Pipe into jq, awk, or any AI agent's tool channel.
  • Multi-period candlesticks
    Daily, hourly, 15-min, 5-min, 1-min — all from one flag.
  • Portfolio P&L view
    Position breakdown with allocation drill-down.
  • OAuth 2.0 on SSH
    Works on headless servers and inside Docker.
CLI Documentation
macos · bash
$ brew install --cask longbridge/tap/longbridge-terminal
 
$ longbridge auth login
✓ Browser opened. Logged in as jason@longbridge.com
 
$ longbridge quote "TSLA.US""NVDA.US" "700.HK"
SYMBOL   LAST     CHANGE    VOLUME
TSLA.US   421.65   +2.31%   18.2M
NVDA.US   142.83   +1.18%   62.7M
700.HK    528.50   +0.86%    5.4M
 
$ longbridge portfolio --format json | jq '.positions[] | select(.pnl_pct > 5)'
120+commands
7output formats
3platforms
40msp50 query
AI Skill · packaged tools

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, no app-switching required.

Copy and send to any AI — it walks you through install:
Install Longbridge AI toolkit following the guide:
https://open.longbridge.com/skill/install.md

And complete login and test with a market data query.
— or via package manager —
$ npx skills add longbridge/skills -g
GChatGPT
OCodex
CClaude Code
CCursor
GGemini
OOpenClaw
ZZed
+ any Skill-compatible agent
Claude Code · skill: longbridgeconnected
Pull NVDA's daily chart for the past 6 months and tell me if I should hold my position.
used longbridge-kline · 6mo · daily
used longbridge-positions
NVDA broke its 50-day MA on heavy volume 3 sessions ago. Your 247 shares at avg $127.40 are up +12.1%. Concentration risk is medium — NVDA is 31% of your portfolio. Consider trimming if it hits $150.
Hosted MCP

Connect ChatGPT and AI assistants to live market data — no API keys.

Open the Longbridge ChatGPT App, authorize, then use @longbridge. Other AI clients connect through hosted HTTP MCP with OAuth 2.1.

ChatGPTCodexClaude CodeGeminiCursorZed
MCP Documentation
~/projects/quant — claude
# One-line install for Claude Code
$ claude mcp add --transport http longbridge \
  https://mcp.longbridge.com
 
→ Opening browser for OAuth 2.1…
✓ Authenticated as jason@longbridge.com
✓ Connected · 130 tools available
 
# Verify the connection
$ claude mcp list
longbridge   ✓ ready   130 tools
ChatGPT Apps first; other clients use OAuth 2.1 on first use. No API key needed.
API Capabilities

Real-time data and trading capabilities for every investment workflow.

30+

Market Data

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

  • Real-time quotes
  • Order book depth
  • Candlestick charts
  • Intraday timeline
  • Capital flow
  • WebSocket push
14+

Trading & Orders

Submit, replace, and withdraw orders. Track positions, balance, and execution history

  • Submit orders
  • Modify & cancel
  • Positions & balance
  • Execution history
  • Order status push
8+

Derivatives

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

  • Option chains + Greeks
  • Warrant filtering
  • Issuer directory
  • Derivative quotes
7+

Financial Research

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

  • Financial statements
  • Valuation metrics
  • Dividend history
  • EPS forecasts
  • Analyst ratings
8+

Content & News

Real-time news feeds, community discussions, topics, and engagement metrics

  • News feeds
  • Community topics
  • Discussions
  • Engagement data
OpenAPI SDK

Production-grade SDKs with real-time streaming.

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

get_quote.py
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)
pippip3 install longbridge
Multi-Market
US · HK · SG · CN (SH/SZ) — stocks, ETFs, options, warrants.
USHKSGCN
Free & Paper Trading
No additional API charges. Paper trading with real market data, no securities account required.
$0 API charges
Real-time Push
WebSocket push for quotes, order depth, trades, and order status — <60 ms latency.
OAuth 2.0 + Async
Automatic token management with modern async/await patterns and built-in rate control.
Get started

Get started in minutes

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

01

Authentication setup

Register an OAuth 2.0 client, obtain credentials, and configure your SDK with automatic token management.

Setup guide
02

API Reference

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

Explore APIs
03

Install CLI

One-line install for macOS, Linux, and Windows. 130+ commands with interactive TUI and JSON output.

Install now

Build smarter financial tools with real-time data and AI.