Cidr Calculate API

POST https://api.findutils.com/api/tools/cidr-calculate/execute

Compute network / broadcast / first-last host / subnet mask / hosts count for a CIDR (e.g. 192.168.1.0/24).

Needs an API key. Running a tool needs an API key. Keys are not for sale yet: ask for early access. About API keys

Try it

Request body

application/json

cidr

string required

CIDR notation like "192.168.1.0/24".

Example arguments

Verified

{
  "cidr": "10.0.0.0/24"
}

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curl -X POST https://api.findutils.com/api/tools/cidr-calculate/execute \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "cidr": "10.0.0.0/24"
  }'

const response = await fetch('https://api.findutils.com/api/tools/cidr-calculate/execute', {
  method: 'POST',
  headers: { 'Content-Type': 'application/json', Authorization: 'Bearer YOUR_API_KEY' },
  body: JSON.stringify({"cidr":"10.0.0.0/24"}),
});
const data = await response.json();

import requests

response = requests.post(
    "https://api.findutils.com/api/tools/cidr-calculate/execute",
    headers={"Authorization": "Bearer YOUR_API_KEY"},
    json={"cidr":"10.0.0.0/24"},
)
data = response.json()

$ch = curl_init('https://api.findutils.com/api/tools/cidr-calculate/execute');
curl_setopt_array($ch, [
    CURLOPT_POST => true,
    CURLOPT_HTTPHEADER => ['Content-Type: application/json', 'Authorization: Bearer YOUR_API_KEY'],
    CURLOPT_POSTFIELDS => '{"cidr":"10.0.0.0/24"}',
    CURLOPT_RETURNTRANSFER => true,
]);
$data = json_decode(curl_exec($ch), true);

Also an MCP tool

Call cidr_calculate from Claude, Cursor or any MCP client. Same arguments, same output.

https://mcp.findutils.com

MCP reference

Rate limit: 60 a minute, per IP
Auth: API key
REST id: cidr-calculate
MCP name: cidr_calculate
Category: Network
Machine-readable: openapi.json · markdown.md

Request body

Example arguments

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