Fair Value Calculator MCP server

Hosted Model Context Protocol server of Fair Value Calculator. It lets an AI assistant look up what a listed stock is worth according to our valuation models, instead of estimating a number from memory.

This repository holds the documentation and the registry manifest (server.json). The server itself is a hosted service; there is nothing to install or run locally, and its source code is not part of this repository.

What it covers

Fair value per share, valuation status and a quality score for 40,000+ listed stocks worldwide. The fair value is blended from several valuation models on reported fundamentals and is recalculated daily. Method and limits: https://www.fairvalue-calculator.com/methodology.

The numbers are model estimates, not prices and not investment advice. Where the data does not support a figure, the server returns the verdict without a number instead of a weak estimate.

Related MCP server: Circlfi-MCP

Tools

The three tools that change the watchlist or alerts ask for separate consent during sign-in.

Free accounts get the verdict tools with monthly limits; exact fair values for all stocks, comparisons of up to five stocks, alerts and watchlist suggestions are part of Pro. Current limits and prices: https://www.fairvalue-calculator.com/pro.

Connect

In any client that supports remote MCP servers, add the endpoint and sign in when prompted:

https://www.fairvalue-calculator.com/mcp

Claude Code:

claude mcp add --transport http fair-value-calculator https://www.fairvalue-calculator.com/mcp

Codex:

codex mcp add fair-value-calculator --url https://www.fairvalue-calculator.com/mcp

Cursor (.cursor/mcp.json):

{"mcpServers":{"fair-value-calculator":{"url":"https://www.fairvalue-calculator.com/mcp"}}}

VS Code: run "MCP: Add Server", choose HTTP and paste the endpoint.

This repository is also a Cursor plugin (plugins/fair-value-calculator), which registers the same endpoint.

Gemini CLI (this repository is also a Gemini CLI extension, gemini-extension.json):

gemini extensions install https://github.com/petz00711/fair-value-calculator-mcp

Step-by-step guides for Claude, ChatGPT, Claude Code, Cursor, VS Code and Codex: https://www.fairvalue-calculator.com/integrations.

Example questions

• "What is Apple worth according to Fair Value Calculator?"

• "Which European technology stocks are undervalued right now?"

• "Compare Microsoft, Alphabet and Meta."

• "Add Nestlé to my watchlist."

Open data

Monthly market valuation datasets (CC BY 4.0): https://github.com/petz00711/fvc-open-data, DOI 10.5281/zenodo.21639205.

Support

Questions and problem reports: office@fairvalue-calculator.com, or open an issue here.

License

The documentation and manifest in this repository are licensed under CC BY 4.0. The hosted service is proprietary and is used under the terms at https://www.fairvalue-calculator.com/legal.php?doc=agb&lang=en.