Graham Number Calculator MCP Server

by edgethirteen-www Your server? Claim it

answering

Graham Number Calculator is answering right now. Last checked 7 min ago. It exposes 1 tools.

Benjamin Graham's fair-value ceiling and margin of safety for a US-listed ticker.

Uptime history 50 days of history · worst day 26%

50 days agonow

81.3%

Uptime 24h

74 of 91 checks

Tools

read from the server

240 ms

Response time

average over 24h

open, no key

Access

streamable-http

Graham Number Calculator does not always answer

Over the last week it answered 95.2% of our checks. We check every 15 minutes, so you hear about the next outage within the hour — not from your users.

Connect this server

Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 7 min ago.

Claude Code Claude Desktop Codex Cursor VS Code

run in your terminal

claude mcp add graham-number-calculator --transport http https://www.edgethirteen.com/api/mcp/graham-number-calculator

Settings → Connectors → Add custom connector, then paste this address

https://www.edgethirteen.com/api/mcp/graham-number-calculator

~/.codex/config.toml

[mcp_servers.graham-number-calculator]
url = "https://www.edgethirteen.com/api/mcp/graham-number-calculator"

.cursor/mcp.json

{
  "mcpServers": {
    "graham-number-calculator": {
      "url": "https://www.edgethirteen.com/api/mcp/graham-number-calculator"
    }
  }
}

.vscode/mcp.json

{
  "servers": {
    "graham-number-calculator": {
      "type": "http",
      "url": "https://www.edgethirteen.com/api/mcp/graham-number-calculator"
    }
  }
}

Available tools 1

Read directly from the server with tools/list, grouped by what they act on. If a tool disappears, we record the date.

compute

compute_graham_number

Compute 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.

Endpoints

URL	Transport	State	Latency	Checked
https://www.edgethirteen.com/api/mcp/graham-number-calculator	streamable-http	answering	212 ms	7 min ago

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Graham Number Calculator — questions

Answers built from our own checks of this server.

What can Graham Number Calculator do?

It exposes 1 tools, read directly from the server on our last check. Among them: compute_graham_number. The full list with descriptions is on this page — we take it from the server itself via tools/list, not from a README. How MCP servers expose tools in the first place →

Is Graham Number Calculator working right now?

We send a real MCP handshake every 15 minutes. Over the last 24 hours 74 of 91 checks got a reply (81.3%), average response time 240 ms. The bar chart above shows every period we have measured.

How do I connect Graham Number Calculator?

Copy the ready config from this page. We generate it for Claude Code, Claude Desktop, Codex, Cursor and VS Code, each in the form that client actually reads. It is a remote server, so there is nothing to install — the client connects to the address.

Does Graham Number Calculator need an API key?

No. Graham Number Calculator completed a full MCP handshake with us as an anonymous client and listed its tools without asking for anything. All 1 of them are readable on this page. This is what we observed, not what the docs claim.

How fast is Graham Number Calculator?

It answers our handshake in 240 ms on average, which is faster than 59% of all working MCP servers we measure. The comparison comes from our own checks across the whole registry, every 15 minutes.