Placing and cancelling orders from a chat window is a different risk from reading a quote, and the scope you grant at sign-in is what separates them — connect without the trade permission and the account and order tools simply are not there. Worth knowing before you choose a client: the ChatGPT app cannot offer order placement at all, which makes it the safer place to do research and the wrong place to trade. The skills layer matters more than it sounds; a hundred-plus raw tools is a lot for a model to navigate, and the skills give it a route through them.
Longbridge's skills bundle for AI clients, sitting on top of the Longbridge MCP endpoint. The skills are the part you install into your assistant — thirteen of them, grouped by the kind of question you are asking — and they call the hosted MCP server, which exposes more than a hundred tools across market data, fundamentals, derivatives, portfolio, trading and automation.
- Market data — quote, depth, candlesticks, history_candlesticks_by_date, capital_flow, capital_distribution, trades, brokers, market_status and trading_days
- Fundamentals — company, financial_statement, financial_report, dividend, valuation, valuation_comparison, business_segments, shareholder and executive
- Research — institution_rating, consensus, forecast_eps, industry_peers, industry_valuation, short_positions and insider and institutional holdings
- Derivatives — option_chain_info_by_date, option_quote, option_volume, warrant_list, warrant_quote and warrant_issuers
- Your account — account_balance, stock_positions, cash_flow, today_orders, history_orders, today_executions, statement_list and margin_ratio
- Trading — submit_order, replace_order, cancel_order and estimate_max_purchase_quantity
- Automation — price alerts through alert_add, alert_list, alert_enable and alert_delete, and dollar-cost-averaging plans through dca_create, dca_pause, dca_resume, dca_stats and dca_history
- Screening and discovery — screener_search, screener_strategy, rank_list, top_movers, anomaly, market_temperature, ipo_calendar, news_search and filings
- Thirteen skills that shape those tools into workflows: market data, technical analysis, derivatives, fundamentals, research, portfolio, quant, watchlist, content, intel, earnings and value investing
A Longbridge account — a paper trading account works — and an MCP client that fully implements OAuth 2.1; there are no keys to paste. Connect to https://mcp.longbridge.com, or https://mcp.longbridge.cn for mainland China, noting that US accounts must use the global endpoint. Which tools you actually see depends on your region, account level and granted scopes; choose the trade permission during sign-in if you want positions, orders and P&L. Two things to plan around: Longbridge's ChatGPT app leaves out order placement and other trading tools under platform policy, so trading needs a different client; and clients without a browser can redeem a one-time Agent Auth Code against a dedicated endpoint instead. Some skills additionally want the Longbridge CLI installed locally. Upgrading from the older release does not remove its skills, and a supplied script clears them.
One command — npx skills add longbridge/skills -g