Who it is for
Retail investors following US and Hong Kong listings, particularly those already holding a Longbridge account.
US and Hong Kong stock research plus account data
Overview
Longbridge covers research on companies listed in the United States and Hong Kong. Market data sits alongside fundamentals, news, analyst ratings, screeners and movers, rankings, short interest, and regulatory filings.
A Longbridge brokerage account can be connected, which extends the same conversation to balances and positions, profit and loss, cash flow and statements, order history, and saved watchlists. Portfolio questions about allocation or where gains and losses came from are then answered against real holdings.
The app is split into several skills, with separate ones for market data, fundamentals, earnings, derivatives, portfolio, intel, and content, so a question is routed to the relevant slice rather than to a single undifferentiated tool.
Retail investors following US and Hong Kong listings, particularly those already holding a Longbridge account.
Company research and personal portfolio review sit in one app instead of requiring two.
Availability
Longbridge is listed in the ChatGPT apps directory only. Longbridge has no connector under the same domain in the Claude directory; 392 of the 3,150 products here are on both marketplaces, and this is not one of them.
ChatGPT apps are built on MCP, and the same server can back a Claude connector, so the absence is a distribution decision rather than a technical one.
ChatGPT listing
Longbridge declares 13 named skills, which puts it in the 6.7% of ChatGPT-listed apps that do.
Same company
US and Hong Kong market research through Longbridge Securities
Claude
Nearby
Structured US stock market data and filings
ChatGPT
Car insurance comparison from a few vehicle details
ChatGPT
Structured breakdown of earnings and investment documents
ChatGPT
Bank, card, and brokerage data aggregated for querying in chat
Claude
Car insurance comparison questionnaire for US drivers
ChatGPT
Mortgage payment and total interest calculations
ChatGPT
This is an independent catalogue entry compiled by Node8 from Longbridge's public marketplace listing as it stood in August 2026. Listing facts come from the marketplaces; the comparisons against the rest of the directory and any live-endpoint measurements are Node8's. Node8 is not affiliated with Longbridge, and inclusion here is not an endorsement.
Node8 builds MCP servers end to end: deciding which tools are worth exposing, the authentication and permission model, the review submissions, and the onboarding that gets them used. One server serves ChatGPT, Claude, and Microsoft Copilot.