Helious Is Now a Plugin in ChatGPT
OpenAI has approved Helious for the ChatGPT plugin directory, listed under TradeIQ Ltd, the company behind it. Open the listing, press Install plugin, sign in once, and ChatGPT reads the live desk. Claude has carried Helious in its connector directory since 27 October, so the two assistants most people use now both list it by name, under the same company, reviewed by the platform that shows it.
1. What changed?
When we announced the Claude listing in October, the ChatGPT one was submitted and waiting on OpenAI's review. That review is done and the listing is live. The data is unchanged: Treasury yields and the curve regime, every economic release scored the second it prints, auction results with the tail and who bought, Fed rate odds off the futures strip, the FX and volatility boards, and the feed. What changed is that ChatGPT now carries Helious in its own catalogue, with OpenAI's name on the review and TradeIQ Ltd's name on the card. Until today the only way in was developer mode and a pasted address.
2. How do I add it in ChatGPT?
Open the Helious listing and press Install plugin. A Helious page opens. If you already have an account, sign in; if not, create one on that same screen, free and with no card. Press Allow and you are back in ChatGPT with the full set of read-only tools. In a chat, ask a question that names Helious, or pick it from the plus menu next to the composer so its tools are in play for that conversation. The listing ships with three starter prompts you can press straight away: what the Treasury curve is doing today, how the last 10-year auction went, and this week's economic releases with forecasts.
3. What can I ask once it is installed?
Plain questions. What is the Treasury curve doing today, and when did the regime last flip? How did this morning's 10-year auction go against the tenor's averages? What prints this week and what is the forecast? What are the odds of a cut at the next FOMC meeting? How hot was the last CPI print against its own history? Each answer comes back as a finished sentence that names Helious and links the page the number lives on, with the data underneath it, so you can check any claim in one click. ChatGPT gains the same 26 read-only tools Claude has: yields and the whole curve, curve regime history, the official closes, the scored calendar, every series in depth, auctions, rate odds and the rate path, the FOMC roster, digests of minutes and speeches, the market boards, mega-cap earnings, Strait of Hormuz transits, the feed and the live events we transcribed.
4. What does being in both directories mean?
It means the two assistants most people have open all day each checked Helious before showing it. Anthropic reviewed the server against its connector rules in October. OpenAI ran its own review, with its own automated scan of every tool description, a domain check on api.helious.io, a set of positive and negative test prompts, and a reviewer account to run them with. Both listings sit under TradeIQ Ltd, a company registered in Scotland. A settings field asks you to trust an address. Two directories ask two platforms to check it first, and both said yes.
5. Does my AI see live numbers?
It sees what your plan sees. A free account reads seven days back with news an hour behind. Paid plans open the market prices and deeper history, and an answer that needs more than your plan includes says so and names the page to read, instead of guessing. The plans are on the pricing page. The plugin itself sells nothing and takes no payment.
6. Is it safe to install?
The connection is OAuth, the same standard your Google and Microsoft sign-ins use. Helious never hands your password to ChatGPT, and the token it holds can only read market data. It cannot touch your subscription, spend anything, post anything or create keys. You can disconnect ChatGPT from your Helious account page at any time, and from ChatGPT's own settings. OpenAI's own note on the listing is worth reading too: when a plugin is connected, ChatGPT may share relevant parts of the chat with it so the tools know what you asked. Helious receives the tool call and its arguments, such as a tenor or a date, and keeps no conversation data beyond them.
7. I already connected it in developer mode. Do I need to change anything?
No. The address https://api.helious.io/mcp keeps working as a custom connector in ChatGPT, and everywhere else it works today: Claude Code, Codex, Cursor, VS Code, Windsurf, Zed, Cline and the rest. A pasted API key keeps working too. The directory adds a way in; it does not close one. The full list of tools and the manual setup are on the AI setup page and in the developer reference.
8. What is next?
The listings are the front door. The work behind it carries on as before: new tools land on the server first and we update each listing as they do, and every answer keeps naming its source page and the second it was true. If your assistant asks Helious something it cannot answer, tell us at [email protected]. A question a tool cannot answer yet is the best brief for the next one.