Can You Connect Gemini to Public?
Last updated August 2026
Short answer
We have not verified that Gemini can hold a custom connector, so as far as we can confirm it cannot read a Public account today. That is a fact about Gemini rather than about Public, which connects perfectly well, including for orders you approve. The route that works now is either an assistant that does support connectors, such as Claude or ChatGPT, or Walnut's own built-in assistant, which needs no third-party client at all. Walnut is informational and is not an investment adviser.
This page could pretend the connection works and collect the traffic. It does not, because Gemini is strong at reasoning over what you give it, and not something we have verified can hold a live brokerage connection, and sending you to set up something that may not exist wastes an afternoon. What follows is what actually works today and how to tell when that changes.
What actually works instead
The connection has to be supported by the assistant, and support for custom connectors is uneven and changes quickly. Claude and ChatGPT are verified. Gemini is not, so anything claiming otherwise is worth checking before you spend time on it.
Three routes are open today. Use an assistant that does support connectors. Use Walnut's own built-in assistant, which reads a connected Public account without needing Gemini or any other client. Or paste a snapshot of your holdings into Gemini by hand, which works for a one-off question and goes stale immediately.
Public supports order placement as well as reading, and enforces a $5 minimum per fractional order, so each leg of a small basket has to clear that.
To check whether this has changed, look in Gemini's settings for a section named connectors, MCP servers, tools or extensions. See our running list of which assistants support this.
What it can and cannot see
| Data | Available? |
|---|---|
| Positions and quantities | Yes, once connected. This is the base of any analysis |
| Average cost per position | Usually, which is what makes return figures possible rather than just weights |
| Account balances | Yes |
| Placing an order | Yes, with your approval on each order |
| Your tax position and goals | No. Nothing knows this unless you say it |
| Accounts at other providers | Only if you connect those too |
The fourth row is the one that surprises people, and it is decided by the broker rather than by the assistant. Public is unusual in supporting execution at all: most large brokers do not, so an assistant can analyse them in detail and then be unable to act on a single conclusion it reached.
Get a recommendation for your situation
Walnut is the AI that knows your portfolio: ask anything in plain English, research any fund, and get an honest second opinion. On the broker you already use, read-only, and you approve every trade. Walnut is not a registered investment adviser.
You may not need Gemini for this
Nearly every page on this subject assumes the assistant is fixed and the question is how to reach it. It is worth turning that around. What you want is to ask questions about your own portfolio and get answers based on what you actually hold, and the client you do that in is a preference.
Walnut connects Public and has its own built-in assistant, so the conversation works whether or not Gemini ever supports connectors. For people who would rather stay in the assistant they already use, Walnut also exposes an MCP connector that Claude and ChatGPT accept. Both routes read the same account.
Related: connecting Public to an AI assistant covers this broker in depth, and AI portfolio analysis covers what the reading half is worth on its own, which is most of the value.
FAQ
Can Gemini connect to Public?
We have not verified that Gemini can hold a custom connector, so as far as we can confirm it cannot read a Public account today. That may change, and the way to check is to look for a connectors or MCP section in its settings. In the meantime the working route is an assistant that does support it, or Walnut's own built-in assistant.
Does Gemini see my real Public holdings?
Not today, as far as we can verify. Anything Gemini says about your holdings comes from what you typed into it, so treat it as commentary on your description rather than analysis of your account.
Can Gemini place trades in my Public account?
Public is one of the minority of brokers that supports order placement through an aggregated connection, so an assistant can prepare an order and you approve it before anything reaches the broker. What matters is that approving and placing stay separate steps, and that approval is tied to the specific order rather than granted once and reused.
Is it safe to connect Public to an AI assistant?
The safe shape is the same regardless of assistant: you sign in at Public's own screen so no tool handles your password, access is scoped and revocable, and you can end it from the broker's side as well as the app's. Confirm those before connecting rather than assuming them.
What can it not do?
It does not know your tax position, your goals, or any account you have not connected, so advice depending on those is guessing unless you supply them. It also cannot see held-away accounts at other providers unless those are connected too, which is usually where the interesting problems are hiding.
Do I need Gemini at all?
No, and this is the part most pages on this subject miss. Walnut has its own built-in assistant that reads a connected Public account directly, so you can ask about your portfolio without Gemini or any other client supporting connectors. Using Gemini is a preference rather than a requirement.
Which brokers can an AI assistant actually trade?
Verified in August 2026, the trade-enabled set through the aggregator is E*Trade, moomoo, Public, Questrade, Stake Australia, tastytrade, Trading212, Wealthsimple and Webull in both entities. Every other broker, including Fidelity, Robinhood, Schwab, Vanguard and Interactive Brokers, connects for tracking only.
What should I ask once it is connected?
Start with what it can see, before what you should do. Ask it to list your positions and their weights sorted by value, which is the fastest way to find out whether your portfolio is as diversified as the holdings count suggests. Then ask what your funds cost you in total each year.
Connect your broker to an AI assistant
Step-by-step guides for each major broker, plus the general setup guides for ChatGPT and Claude, which brokers have an AI assistant built in, and Walnut's MCP connector.
Related articles
Walnut is informational and is not an investment adviser, and nothing here is investment advice. Assistant connector support and broker integrations both change; the positions described were verified in August 2026 and are worth re-checking rather than assuming.