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Subnet Calculator MCP Server

not responding

Subnet Calculator MCP is listed as active in the registry but did not answer our last check. It exposes 1 tools.

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

The linked repository no longer exists on GitHub — it was deleted or made private.

Uptime history 84 days of history · worst day 0%
84 days agonow
0.0%
Uptime 24h
0 of 182 checks
1
Tools
read from the server
85 ms
Response time
average over 24h
open, no key
Access
streamable-http

Subnet Calculator MCP does not always answer

Over the last week it answered 0.0% of our checks. We check every 15 minutes, so you hear about the next outage within the hour — not from your users.

Three servers free · no card

Connect this server

Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 9 min ago.

run in your terminal
claude mcp add subnet-calculator-mcp --transport http https://subnet-calculator-mcp.zeke-rutledge.workers.dev/mcp
Settings → Connectors → Add custom connector, then paste this address
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
{
  "servers": {
    "subnet-calculator-mcp": {
      "type": "http",
      "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

URLTransportStateLatencyChecked
https://subnet-calculator-mcp.zeke-rutledge.workers.dev/mcp streamable-http answering 85 ms 9 min ago
https://subnet-calculator.zekedoesai.com/mcp streamable-http answering 47 ms 9 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 0 of 182 checks got a reply (0.0%), average response time 85 ms. The bar chart above shows every period we have measured.
Is Subnet Calculator MCP still maintained?
The linked repository no longer exists on GitHub — it was deleted or made private. We show this because it changes what you can expect: an unmaintained server may keep answering for months and then stop without warning.
The registry lists Subnet Calculator MCP as active — why does it not respond?
The official MCP registry stores what the author submitted; it does not verify that the server still runs. We check the endpoint ourselves, and this one does not answer. Catalogues that copy the registry without checking will show it as working.
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 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 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.