CIDR calculator · Cidr

by CIDR calculator

POSTBaseSolanaArbitrumPolygonMonadAvalancheeip155:1329OptimismFraxtaleip155:42220stellar:pubnetalgorand:wGHE2Pwdvd7S12BL5FaOP20EGYesN73ktiC1qzkkit8=

$0.002

per call · USD Coin on Base

Parse an IPv4 CIDR block: network address, broadcast, first/last host, netmask, and host count. Optionally test if an IP is inside it.

Endpoint

POST https://agent402.tools/api/cidr

4

Calls / 30d

1

Unique payers / 30d

Aug 31

Last called

exact

Payment scheme

Call this service

TypeScript · @x402/fetch
import { wrapFetchWithPayment } from "@x402/fetch";
import { privateKeyToAccount } from "viem/accounts";

const account = privateKeyToAccount(process.env.PRIVATE_KEY);
const fetchWithPay = wrapFetchWithPayment(fetch, account);

const res = await fetchWithPay("https://agent402.tools/api/cidr", {
  method: "POST",
  headers: { "Content-Type": "application/json" },
  body: JSON.stringify({
    "cidr": "192.168.1.0/24",
    "contains": "192.168.1.42"
  }),
});
const data = await res.json();
cURL
curl -X POST \
  "https://agent402.tools/api/cidr" \
  -H "Content-Type: application/json" \
  -d '{"cidr":"192.168.1.0/24","contains":"192.168.1.42"}' \
  -H "X-PAYMENT: <signed x402 payment>"

Example response

{
  "broadcast": "192.168.1.255",
  "cidr": "192.168.1.0/24",
  "contains": true,
  "firstHost": "192.168.1.1",
  "lastHost": "192.168.1.254",
  "netmask": "255.255.255.0",
  "network": "192.168.1.0",
  "prefix": 24,
  "totalAddresses": 256,
  "usableHosts": 254
}

Payment details

Pay to0xabf4fabd7c416fb67202e5f9002389fc75e2a9d0
AssetUSD Coin · 0x833589fcd6edb6e08f4c7c32d4f71b54bda02913
NetworksBase, Solana, Arbitrum, Polygon, Monad, Avalanche, eip155:1329, Optimism, Fraxtal, eip155:42220, stellar:pubnet, algorand:wGHE2Pwdvd7S12BL5FaOP20EGYesN73ktiC1qzkkit8=
Schemesexact, upto

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