AI INTEGRATION

Stock analysis in Mistral Vibe (Le Chat) with Fair Value Calculator

Mistral Vibe (called Le Chat until May 2026) fetches the fair value, quality score and verdict from us instead of estimating. Set it up once as a custom MCP connector, works with a free Mistral account too.

Server address (MCP): https://www.fairvalue-calculator.com/mcp
You need: A Mistral account (any plan, including Free) and a Fair Value Calculator account (free, you create it with your email address while connecting). Your plan and its limits apply here too.
Time: about 2 minutes
Sent to the AI: only the valuation for your question, never share counts, entry prices or notes

Free: 3 full verdicts a day and a watchlist of up to 10 stocks. Pro: 50 a day, a larger watchlist and the email alert from the chat. It is the same Pro as on the website and applies right away to your connected account. Try Pro: first month $1

How to connect Mistral Vibe (Le Chat) step by step

On your phone? Two things first

You add a custom connector in a browser on a computer, which is also how the Mistral Vibe (Le Chat) help describes it. Copy the server URL here or send yourself the guide, then it takes two minutes on a computer.

Email me the guide Mistral Vibe (Le Chat) open on a computer ↗

Two common pitfalls, read these first

Do this in a browser on a computer, not the phone app. Mistral Vibe (Le Chat) does not describe this path there.
Use "Custom MCP Connector", not the connector search. Our connector is added by its address, the search will not find it.

Open chat.mistral.ai in a browser on a computer and sign in. A free Mistral account is enough; in a team workspace the admin adds the connector.
Open "Connectors" in the sidebar, click "+ Add Connector" and choose the "Custom MCP Connector" tab.
Enter FairValueCalculator as the connector name (no spaces or special characters). Paste this server URL: https://www.fairvalue-calculator.com/mcp
Click "Connect". Mistral detects the sign-in by itself, you do not need a client ID or secret. In the new window, sign in with your Fair Value Calculator account (or create a free one with your email address) and click "Connect".
Open a new chat and ask: "Evaluate Apple with the Fair Value Calculator". If Vibe does not use the connector: click "+" (or type /), choose "Tools" and switch on FairValueCalculator.

Good to know

For watchlist and alert: under "Connectors", "My Connectors", FairValueCalculator, "Functions" tab, set only the reading functions to "Always allow". Then Vibe asks before every change to your watchlist or alert ("Continue", "Always allow" or "Decline").

Server URL to paste https://www.fairvalue-calculator.com/mcp

Custom MCP connectors are available on every Mistral plan, including Free (on Free, Pro and Student you are the admin yourself). In a team workspace the admin adds them.

Cannot find the "Custom MCP Connector" button? Check your plan above, and open the site in a browser on a computer instead of the phone app.

Last verified: 2026-11-08.

Example prompts

Value Apple with Fair Value Calculator.

Compare Apple and Microsoft using the FVC valuation.

Which of these has higher fundamental quality per FVC?

Open the full analysis on Fair Value Calculator.

What Mistral Vibe (Le Chat) can do afterwards

Find a stockFree

A name, ticker or ISIN becomes the right listing, in the same order as the search on the site. Up to five matches.You ask: „Find Siemens."

Fair value verdictFree

The fair value per share with its currency and its range (cautious to optimistic), the distance to the price, the verdict (under-, fairly or overvalued), the quality score, the data level, the uptrend and the three buy rules of the strategy (fair value, quality, uptrend). Plus the reasoning: strengths and weak points, the AI conclusion and the main risk, with the link to the full analysis.You ask: „What is Apple worth?"

Quick snapshotFree

Verdict, distance in bands and quality of one stock, without the exact number. For a quick look at many stocks.You ask: „Is Nestlé roughly expensive or cheap?"

Screen for undervalued stocksFree

Stocks that match your criteria right now: minimum distance to fair value, minimum quality, sector, region (US or Europe), only in an uptrend or exactly the stocks with all three buy rules of the strategy. Sorted by quality, with the buy rules like the strategy.You ask: „Which European tech stocks are undervalued?"

Compare stocksFree

Several stocks side by side with the same values. Free: 2 stocks as snapshots, with Pro up to 5 with fair value.You ask: „Compare Microsoft, Alphabet and Meta."

Show my watchlistFree

Your saved watchlist with today's verdict, distance and quality of each stock, plus whether your email alert is on.You ask: „How does my watchlist look right now?"

Add stocks to the watchlistFree

Adds up to 10 stocks per request to your watchlist. What is already on it stays unchanged. From then on the alert and the weekly briefing follow these stocks.You ask: „Put Coca-Cola and PepsiCo on my watchlist."

Remove stocks from the watchlistFree

Removes up to 10 stocks per request from your watchlist. The previous list is kept on our side as a backup.You ask: „Take Intel off my watchlist."

Turn the email alert on or offPro

Turns the email alert for your whole watchlist on or off. The alert comes when one of your stocks changes from On track to Review: the price has reached the optimistic fair value, the Quality Score has fallen below 50 (the minimum of the buy rule) or the stock has been on it for five years. There are no price-target alerts.You ask: „Turn on my watchlist alert."

Stocks that fit my portfolioPro

Suggests up to 8 stocks that fit your watchlist: below their fair value, high quality, and ranked by their measured correlation with your stocks. The same optimizer as on the site.You ask: „What would diversify my watchlist?"

Watchlist and alert work on your account. You agree to this separately when connecting, and your AI only changes something on your explicit request. If you were connected before, disconnect once and connect again.

Questions about Mistral Vibe (Le Chat)

What does Fair Value Calculator cost in Mistral Vibe (Le Chat)?

Nothing on our side: a free account is enough and gives you 3 full verdicts a day and a watchlist of up to 10 stocks. Pro allows 50 a day, a larger watchlist and the email alert from the chat; it is the same Pro as on the website. Custom MCP connectors are available on every Mistral plan, including Free (on Free, Pro and Student you are the admin yourself). In a team workspace the admin adds them.

What do I enter for "Client ID" and "Client Secret"?

Nothing. Mistral detects the sign-in by itself, you do not need a client ID or secret.

Does it work on my phone?

Mistral's help describes adding custom connectors only in the browser. Set it up on a computer; Mistral does not say whether it then shows up in the phone app.

What does Mistral Vibe (Le Chat) see of my account?

Only the results needed for your question, for example the fair value, verdict and quality of a stock, no raw data and no complete database. Your watchlist only if you allow it when connecting, and without share counts, entry prices and notes. Mistral Vibe (Le Chat) can change it only on your explicit request.

Does Mistral Vibe (Le Chat) calculate the fair value itself?

No. The fair value, range, verdict and quality score come from Fair Value Calculator's own calculation; Mistral Vibe (Le Chat) fetches them from us and explains them. Each answer links to the full analysis on our site.

How do I disconnect again?

Any time in your Fair Value Calculator account under "Connected AI assistants" (fairvalue-calculator.com/account/ai-connections), access ends right away. You can also remove the entry in Mistral Vibe (Le Chat).

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