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CONNECT

Choose your app

Each guide takes you step by step to a working connection. All you need is your Fair Value Calculator account, a free one is enough.

What you get, with examples and limits: Fair Value Calculator for your AI →

AI assistants

Claude1 minute
FVC valuations right inside Claude chat, via custom connector.
Open guide
A free account is enough. Verified on 2026-10-05
ChatGPT2 minutes
FVC valuations in ChatGPT via a custom connector. Set it up once, then use it in any chat.
Open guide
A free account is enough. Verified on 2026-10-05

Developer tools

Claude Code1 minute
FVC valuations in your terminal: one command, sign in once.
Open guide
A free account is enough. Verified on 2026-10-05
Cursor1 minute
FVC valuations in Cursor: one click, sign in once.
Open guide
A free account is enough. Verified on 2026-10-05
VS Code1 minute
FVC valuations in VS Code (GitHub Copilot): one click, sign in once.
Open guide
A free account is enough. Verified on 2026-10-05
Codex1 minute
FVC valuations in Codex: one command, sign in once.
Open guide
A free account is enough. Verified on 2026-10-05
Another app with MCP? Enter this server URL and sign in with your account. https://www.fairvalue-calculator.com/mcp

What is sent to the AI?

  • Only the FVC results needed for the specific request
  • No complete stock database, no unlimited exports
  • No raw fundamentals, no model weights
  • Your watchlist only if you allow it when connecting, without share counts, entry prices and notes
  • Changes to watchlist and alert only with Pro and only on your explicit request
  • You can revoke the connection in your account at any time

Privacy →

Set-up questions

Do I need an FVC account?

Yes, a free one is enough. You sign in with it once during set-up.

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

Nothing. Both fields stay empty, our server registers the app automatically.

Does this work on a phone?

With Claude, yes: our listing is in the Claude directory and can be added there with one click. With ChatGPT, set-up works in a browser on a computer; after that the connection also works in the phone app of the same account.

I cannot find the button for custom connectors.

Custom connectors need Claude Pro or higher, or ChatGPT Plus or higher. Also open the page in a browser on a computer, not in the phone app.

Can I revoke the connection?

Yes, any time in your FVC account under "Connected AI assistants".

I was already connected. How do I get watchlist and alert?

Disconnect in your AI app and connect again. The consent page then lists the new permissions. Valuations keep working without this step.

Do my existing limits apply?

Yes. Only your FVC plan counts. A ChatGPT or Claude subscription grants no Pro rights with us.

Technical details

Server URL: https://www.fairvalue-calculator.com/mcp (Streamable HTTP)

Sign-in: OAuth 2.1 + PKCE, dynamic client registration. https://www.fairvalue-calculator.com/.well-known/oauth-authorization-server

Tools: resolve_stock, get_stock_verdict, get_stock_preview, screen_stocks, compare_stocks, get_watchlist, add_to_watchlist, remove_from_watchlist, set_watchlist_alerts, suggest_watchlist_stocks. All explained exactly →