Graham Number Calculator
Benjamin Graham's fair-value ceiling and margin of safety for a US-listed ticker.
Connect it
Settings → Connectors → Add custom connector
URL: https://www.edgethirteen.com/api/mcp/graham-number-calculatorSettings → Apps & Connectors → Advanced → Developer mode
Create connector with URL: https://www.edgethirteen.com/api/mcp/graham-number-calculator{
"mcpServers": {
"graham-number-calculator": {
"url": "https://www.edgethirteen.com/api/mcp/graham-number-calculator"
}
}
}claude mcp add --transport http graham-number-calculator https://www.edgethirteen.com/api/mcp/graham-number-calculator{
"servers": {
"graham-number-calculator": {
"type": "http",
"url": "https://www.edgethirteen.com/api/mcp/graham-number-calculator"
}
}
}1 tools, verified live
compute_graham_numberread-onlyCompute Benjamin Graham's fair-value ceiling (sqrt(22.5 * EPS * book value per share)) for a US-listed ticker, and the margin of safety against its current price. Looks up EPS, book value per share, and price from SEC EDGAR + market data automatically -- just pass a ticker. You can also pass eps/bvps/price directly to compute it for a hypothetical company with no ticker.
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