Subnet Calculator MCP Server

by zekerutledge Your server? Claim it

answering

Subnet Calculator MCP is answering right now. Last checked moments ago. It exposes 1 tools. Last commit 17 Sep 2026.

Calculates IPv4 subnet information from an IP address and CIDR prefix or dotted decimal subnet mask

Uptime history 33 days of history

33 days agonow

100.0%

Uptime 24h

184 of 184 checks

Tools

read from the server

177 ms

Response time

average over 24h

Stars

last commit 17 Sep 2026

Nothing serious here today

Today is the operative word: we check Subnet Calculator MCP every 15 minutes and re-read its code on every release. Watch it and you find out the day that stops being true.

Connect this server

Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 0 min ago.

Claude Code Claude Desktop Codex Cursor VS Code

run in your terminal

claude mcp add subnet-calculator-mcp --transport http https://subnet-calculator-mcp.zeke-rutledge.workers.dev/mcp

~/Library/Application Support/Claude/claude_desktop_config.json

{
  "mcpServers": {
    "subnet-calculator-mcp": {
      "url": "https://subnet-calculator-mcp.zeke-rutledge.workers.dev/mcp"
    }
  }
}

~/.codex/config.toml

[mcp_servers.subnet-calculator-mcp]
url = "https://subnet-calculator-mcp.zeke-rutledge.workers.dev/mcp"

.cursor/mcp.json

{
  "mcpServers": {
    "subnet-calculator-mcp": {
      "url": "https://subnet-calculator-mcp.zeke-rutledge.workers.dev/mcp"
    }
  }
}

.vscode/mcp.json

{
  "mcpServers": {
    "subnet-calculator-mcp": {
      "url": "https://subnet-calculator-mcp.zeke-rutledge.workers.dev/mcp"
    }
  }
}

This server publishes 1 more address. The block above uses the one we reach during checks; the full list is under Endpoints below, and the author may intend a particular one for your client.

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.

calculate

calculate_subnet

Calculate IPv4 subnet information from an address with CIDR notation, a prefix length, or a dotted decimal subnet mask.

Endpoints

URL	Transport	State	Latency	Checked
https://subnet-calculator-mcp.zeke-rutledge.workers.dev/mcp	streamable-http	answering	147 ms	0 min ago
https://subnet-calculator.zekedoesai.com/mcp	streamable-http	answering	173 ms	0 min ago

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Subnet Calculator MCP — questions

Answers built from our own checks of this server.

What can Subnet Calculator MCP do?

It exposes 1 tools, read directly from the server on our last check. Among them: calculate_subnet. 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 Subnet Calculator MCP working right now?

We send a real MCP handshake every 15 minutes. Over the last 24 hours 184 of 184 checks got a reply (100.0%), average response time 177 ms. The bar chart above shows every period we have measured.

How do I connect Subnet Calculator MCP?

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

Does Subnet Calculator MCP need an API key?

No. Subnet Calculator MCP 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 Subnet Calculator MCP?

It answers our handshake in 177 ms on average, which is faster than 71% of all working MCP servers we measure. The comparison comes from our own checks across the whole registry, every 15 minutes.

Is Subnet Calculator MCP open source?

We cannot say either way: written in TypeScript and 0 stars on GitHub, but we could not determine the licence, and without one the code is not open source by default.