A year ago, asking an AI chatbot about your portfolio meant copying numbers into a chat window and hoping it understood them. In 2026, three brokers began letting AI connect directly to customer accounts. At one of them, an AI agent can place real trades without asking you first, if you tell it not to.

I trade every week, and I’m interested in this technology and wary of it in equal measure. Here is what each broker allows, where the risks sit, and the ground rules I’d set before giving any agent access to money.

Three brokers, three levels of control

The biggest difference between the launches is who has the final say on each trade.

Interactive Brokers: you approve every order

On June 1, 2026, Interactive Brokers let clients link their accounts to Claude. The assistant drafts stock and ETF orders, and the client approves each one before it goes to market. Nothing executes on its own. This is the most cautious setup of the three, and it suits someone who wants help with research and order entry while keeping every decision.

Robinhood: an agent that can act alone

Robinhood announced Agentic Trading on May 27, 2026, and it’s still in beta. You connect a third-party AI agent through Robinhood’s MCP server, a standard way for AI tools to plug into outside services. Supported platforms include Claude, ChatGPT, Codex, Cursor, Grok, Perplexity and others.

The structure has some sensible guardrails:

  • The agent trades only in a dedicated “MCP account,” a separate self-directed account. You need a primary account in good standing, and Robinhood allows up to 10 self-directed individual accounts.
  • The agent can answer questions about your portfolio and place orders. Its tools cover stocks, options and crypto, though Axios reported at launch that trading was limited to stocks, with more coming as the product leaves beta.
  • You get an alert whenever the agent trades, and you can pause or disable it instantly.
  • You can review the agent’s planned actions. If you tell it not to ask, it can trade without confirming.

Two details deserve close attention. First, while the agent can trade only in its own account, it gets read access to all your Robinhood accounts: positions, balances and history. Second, Robinhood is clear that you are responsible for the agent’s trades. The company warns that you could lose your entire investment and that agents can misread instructions or act on outdated information.

Robinhood paired the launch with an agentic credit card tied to its Gold Card. You set a spending limit and can require manual approval for each purchase.

Public: agents for event contracts

On September 23, 2026, Public launched AI agents that can trade Kalshi event contracts, the CFTC-regulated contracts on outcomes of specific events. It’s a narrower use than Robinhood’s, aimed at a market where prices react quickly to news and where an agent that reads headlines fast has an obvious appeal.

The do-it-yourself route

Beyond the brokers’ own offerings, open-source tools exist that can research ideas, backtest strategies and connect to broker accounts. Some are impressive. All of them deserve the same caution as any software written by a stranger.

My rule: treat an AI-generated strategy as untested code. A backtest that looks brilliant may rest on a flaw nobody has spotted, such as a bug, an unrealistic fill assumption or data that leaked from the future into the test. The AI that wrote the strategy is a poor judge of whether it works.

Where the risks actually sit

Most of the likely problems are mundane:

  • Misread instructions. “Trim my tech exposure” can mean very different things. An agent may pick an interpretation you didn’t intend.
  • Stale information. An agent acting on a price or headline that’s an hour old can make a sound decision on bad facts.
  • Speed. A human makes a mistake once. An automated process can repeat it many times before anyone notices.
  • Leverage. On margin or in futures, an error compounds. Futures losses can exceed the deposit.
  • Visibility. Read access to every account means a lot of financial detail flows to the AI provider. Know what you’re sharing.

None of this is unique to AI. Bad instructions and automated mistakes have hurt traders since the first algorithm. What’s new is how easy it has become to hand the controls to software.

Three questions for any broker

Before connecting an agent anywhere, find the answers to three questions in the broker’s terms: which accounts can the agent see, which accounts can it trade, and what does it take to switch confirmations off? At Robinhood, the answers are all of your accounts, one dedicated account, and a single instruction telling it not to ask. At Interactive Brokers, every order waits for your approval.

Ground rules before you connect anything

If you want to experiment, these are the guardrails I’d use:

  1. Use a separate, small account. Fund it with an amount you could lose without it mattering. Robinhood’s dedicated MCP account is built for this.
  2. Paper trade first. Run the agent’s ideas on paper for a few weeks before real money.
  3. No margin and no leverage. Keep the agent’s account in cash so its mistakes can’t grow past what’s in it. The difference matters more than ever under the new day-trading rules, which I cover in Cash Account or Margin Account? What the New Day-Trading Rules Change.
  4. Set a loss limit. Decide in advance the drawdown at which you shut it off, and keep to it.
  5. Keep your main accounts unconnected. Long-term savings and retirement money stay out of reach.
  6. Review every trade at the start. Keep confirmations on until you understand how the agent behaves. Approval-only setups like Interactive Brokers’ make this the default.

My view

The draft-and-approve model can save time: an assistant reads your positions, explains them and writes up the order, and you still approve every decision. Fully autonomous trading is a different proposition. It can work for a disciplined person running a narrow, tested strategy in a small account. For long-term wealth, I’d keep a human hand on every order.

AI agents are one piece of a wider set of changes at the brokers this year, which I lay out in The Great Broker Shake-Up of 2026. I track each launch by date on BrokerNimble’s what’s-new page, and my full guide to choosing and using a broker covers how to weigh features like these against the costs that matter every day.

Disclosure: Peter Agro runs BrokerNimble.com, an independent broker comparison site that plans to join broker affiliate programs and may earn referral fees in the future. Figures were checked in October 2026 and change often; confirm current terms with the provider. This article is for information only and is not investment, tax or legal advice. Futures, margin and options trading involve substantial risk of loss, including losses greater than your deposit.