MCP Servers/Fair Value Calculator

Fair Value Calculator

Official

Remote MCP server that gives Claude and ChatGPT calculated stock valuations: fair value, quality score, screening and watchlist for 35,000+ stocks. Free to connect with an account.

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Fair Value Calculator estimates what a stock is worth from its fundamentals rather than its daily price. For 35,000+ stocks worldwide it shows a fair value, a quality score and how much evidence backs each estimate. Its fair value blends 26 valuation models run on reported financials, weighted by how much trustworthy data supports each one.

The MCP server brings that data into Claude and ChatGPT. Instead of the assistant guessing at valuations, it can look up a company's calculated fair value and quality score, screen for stocks and work with your watchlist.

Connecting is free with a Fair Value Calculator account. Some features, such as the full screener and watchlist alerts, are part of the paid Pro plan. Fair values are analytical estimates, not buy or sell recommendations.

What You Can Do

Ask Claude or ChatGPT for a stock's calculated fair value and quality score instead of a guessed estimate.

Screen for over- or undervalued companies from inside a chat.

Review the stocks on your watchlist and how far each sits from its fair value.

Compare companies in a sector by valuation and quality before deeper research.

Setup Guide

Create a free account at https://www.fairvalue-calculator.com/

Add a remote MCP server in your client with the URL https://www.fairvalue-calculator.com/mcp

In Claude or ChatGPT, add it as a custom connector and sign in when prompted

Ask for a stock's fair value to test the connection

How to Connect in Antigravity

To connect to a custom MCP server in Antigravity:

Open the MCP store via the "..." dropdown at the top of the editor's agent panel.

Click on "Manage MCP Servers"

Click on "View raw config"

Modify the mcp_config.json with your custom MCP server configuration.

Here is an example configuration compatible with MCP-enabled editors like Antigravity, Windsurf, Claude Desktop, and Cursor:

{
  "mcpServers": {
    "supabase-mcp-server": {
      "command": "npx",
      "args": [
        "-y",
        "@supabase/mcp-server-supabase@latest",
        "--access-token",
        "add-token-here"
      ],
      "env": {}
    },
    "github-mcp-server": {
      "command": "docker",
      "args": [
        "run",
        "-i",
        "--rm",
        "-e",
        "GITHUB_PERSONAL_ACCESS_TOKEN",
        "ghcr.io/github/github-mcp-server"
      ],
      "env": {
        "GITHUB_PERSONAL_ACCESS_TOKEN": "add-your-token-here"
      }
    }
  }
}

This configuration defines two servers: one running via npx (Supabase) and another via docker (GitHub). Make sure to replace the placeholder tokens with your actual API keys.

For a detailed step-by-step walkthrough, check out our MCP Tutorial or explore more in our Top 10 Essential MCP Servers guide.