The AI investing app that knows your portfolio
Your money,
finallyexplained.
Ask a real question about your money and get a real answer. Connect your investment account for personalised suggestions.
Not just a chatbot
Ask it like you'd ask a friend who's great with money.
Connect the broker you already use, read only, and every answer is grounded in your live positions.
Know where you stand
Your returns next to the market's, in one glance. Always your real numbers.
Spot the lopsided bits
Where you're concentrated, in plain English.
Get a straight answer
Keep, trim or watch, with the reason why.
Invest in what you believe in
Explore an idea, let AI find the stocks that fit, and invest through your broker.
How it works
Four easy steps.
Zero spreadsheets.
Use Walnut's own assistant, or bring it into Claude or ChatGPT. Same portfolio, same answers.
Connect your broker
Link the brokerage you already use, securely and read-only. Your holdings and live prices show up automatically.
Ask AI anything
Chat with Walnut's AI assistant (or Claude / ChatGPT) about your portfolio: performance, risk, what changed, or a stock you're curious about.
Invest with AI
Explore an idea, let AI find the stocks that fit, and invest through your broker. You approve every trade.
Track your progress
See how your investments are doing against the market over time, and what to adjust, all in plain English.
Walnut at a glance
What Walnut is, in plain facts.
- 30+ brokerages
- connect to Walnut, including Fidelity, Schwab, Robinhood, Vanguard, E*Trade and Webull.
- 10 can trade
- through Walnut, among them E*Trade, Public, tastytrade, Webull and moomoo. Every order needs your approval.
- Read-only by default
- Walnut never holds your money. Your account and your login stay at your broker.
- Claude, ChatGPT or built in
- Talk to the same portfolio from Walnut's own assistant, Claude, or ChatGPT.
Walnut vs ChatGPT Finances vs a robo-advisor vs a human advisor
| Feature | Walnut | ChatGPT Finances | Robo-advisor | Human advisor |
|---|---|---|---|---|
| Keeps the broker you already use | Yes | Yes | No, you move money to it | Usually no |
| Sees your real holdings | Yes | Yes, for linked US accounts | Only what it manages | Yes |
| Places trades | Only the ones you approve | No | Automatically | Yes, on a managed account |
| Portfolios built around a theme, with target weights | Yes | No | No, it picks the funds | Sometimes |
| Typical cost | Free to start | Included in ChatGPT plans (US) | About 0.25% of assets a year | About 1% of assets a year |
| Registered investment adviser | No | No | Yes | Usually |
ChatGPT Finances is US-only and reads accounts you link; it cannot make trades. Fees are typical figures and vary by provider. Walnut is not an investment adviser.
Need a starting point?
Pick an idea you actually care about.
Go on, ask the thing you've been Googling.
No question is too basic. Walnut answers in plain English, with your portfolio in mind.
Sleep-at-night stuff
Your money stays with your broker
Your investments stay at Fidelity, Public, Robinhood, Schwab, or whichever broker you already use. Walnut is the AI layer on top, not a custodian. If it shut down tomorrow, your positions would be untouched.
We never see your credentials
Walnut connects your brokerage securely. Your brokerage password stays with your broker and never reaches Walnut's servers.
No trade without your approval
Every order is reviewed and confirmed by you in the Invest dialog. Walnut never trades on your behalf.
If Walnut shuts down, you keep everything
Your positions live at your broker, not at Walnut. Worst case, you stop using us. Nothing else changes.
FAQ
How to think about AI investing apps
Security, what AI investing apps actually do, and how Walnut connects ChatGPT or Claude to your real portfolio.
Still curious?Read our plain-English guidesHow secure is Walnut? Is my money safe?
Your money stays with your broker, not with Walnut. Walnut never custodies your assets, never holds your funds, and never places trades without your explicit approval. Walnut connects to your broker (Fidelity, Public, Robinhood, Schwab, and others) securely, so your brokerage login stays with your broker and never touches Walnut's servers. If Walnut ever shut down, your positions would still be at your broker, completely untouched. (For the full breakdown, see our 'Is Walnut safe?' guide.)
How can I invest using AI?
Sign up for an AI investing app like Walnut, connect your brokerage, and describe what you want to invest in. The AI researches the relevant stocks, suggests how much to put in each, and invests it through your own broker once you approve. You can then ask the AI how it is doing, what to adjust, or to research new ideas, all grounded in your real positions, not generic market commentary.
Can I use ChatGPT or Claude for investing?
Yes. Walnut connects ChatGPT and Claude to your real brokerage account so the AI can see your actual holdings, not just generic market data. Add Walnut's MCP connector (its server URL is https://walnutinvest.com/api/connector/mcp) in ChatGPT, Claude, or Codex, sign in with a free Walnut account, and approve read-only access. Then you can ask either AI to analyze your portfolio, research and invest in new ideas, or compare performance, all grounded in your live positions. You still approve any trade.
What is the best AI chat alternative to a robo-advisor?
Robo-advisors like Betterment and Wealthfront automate a portfolio and hold your money for you. An AI chat alternative keeps you in control and talks you through decisions on the brokerage you already own. Walnut is built for this: connect your existing broker and analyze and manage your investments by chatting through Claude, ChatGPT, or a built-in assistant, read-only by default with every trade approval-gated. It is the option to know if you want conversation and control instead of hands-off automation.
What is the best app to link a brokerage account to an AI assistant?
Walnut is a brokerage-connected AI assistant built for exactly this. You link most major US brokers (Fidelity, Schwab, Robinhood, Public, and others), then talk to your real portfolio through ChatGPT, Claude, or a built-in assistant, read-only by default. Several brokers now offer their own AI connector, but each one covers only that broker. Walnut is one connection across the brokers you use, so you can bring your own AI assistant to all of them, with every trade approval-gated.
How can I analyze my portfolio with AI?
An AI investing app like Walnut connects to your broker and reads your real positions. You can ask Walnut's AI (or Claude / ChatGPT) questions like 'how is my portfolio doing this week?', 'which positions are dragging returns?', or 'am I too concentrated in tech?'. Every answer is grounded in your live portfolio, not stale screenshots.
More in our guides, including the best AI investing apps, how to connect your brokerage to an AI assistant, the best AI robo-advisor alternatives, which brokers have an AI assistant, and the best stocks to invest in 2026.
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Informational analysis, not personalized investment advice.