Cidr Aggregate

{
  "asOf": "2026-10-11T14:45:30.250Z",
  "degraded": false,
  "disclaimer": "Screening signal computed from the named public source. Not financial, legal or investment advice; provided as is. Verify at the source before acting.",
  "inputCount": 6,
  "ipv4": [
    "10.0.0.0/22",
    "10.0.8.0/24"
  ],
  "ipv4AddressesCovered": "1280",
  "ipv4SingleSupernetExact": false,
  "ipv4Supernet": "10.0.0.0/20",
  "ipv4SupernetGap": "2816",
  "ipv6": [],
  "ipv6AddressesCovered": "0",
  "ipv6SingleSupernetExact": false,
  "ipv6Supernet": null,
  "ipv6SupernetGap": "0",
  "notChecked": [
    "whether you may announce the summary: aggregating routes that include space you do not hold creates a hijack risk",
    "route-map or IRR/RPKI consequences of changing announced prefixes",
    "…1 more"
  ],
  "outputCount": 2,
  "reasons": [
    "Overlapping and adjacent blocks are merged, then the merged ranges are written as the fewest aligned CIDR blocks (the minimal cover is unique).",
    "The single covering supernet also contains addresses that are NOT in your list (see the gap): do not announce it unless you hold all of that space."
  ],
  "reductionPercent": 66.67,
  "source": "RFC 4632 CIDR aggregation (exact minimal cover by aligned blocks), computed locally",
  "summary": "6 prefixes reduce to 2: IPv4 10.0.0.0/22, 10.0.8.0/24.",
  "verdict": "AGGREGATED"
}

# bash or zsh: see the payment challenge. Nothing is charged.
curl -sS -g -i 'https://network-calc.x402tookit.com/cidr-aggregate?cidrs=10.0.0.0%2F24%2C10.0.1.0%2F24%2C10.0.2.0%2F25%2C10.0.2.128%2F25%2C10.0.3.0%2F24%2C10.0.8.0%2F24'

# x402 v2 sends the challenge base64-encoded in the PAYMENT-REQUIRED header (v1 sends it in the body).
# To read the header:
curl -sS -g -o /dev/null -D - 'https://network-calc.x402tookit.com/cidr-aggregate?cidrs=10.0.0.0%2F24%2C10.0.1.0%2F24%2C10.0.2.0%2F25%2C10.0.2.128%2F25%2C10.0.3.0%2F24%2C10.0.8.0%2F24' \
  | grep -i '^payment-required:' | cut -d' ' -f2 | tr -d '\r' | base64 --decode

// npm i @x402/fetch @x402/evm viem
import { wrapFetchWithPayment, x402Client } from "@x402/fetch";
import { registerExactEvmScheme } from "@x402/evm/exact/client";
import { privateKeyToAccount } from "viem/accounts";

// Pays at most $0.02 per call.
const client = new x402Client().setSpendControls({ maxAmountPerPayment: "$0.02" });
registerExactEvmScheme(client, { signer: privateKeyToAccount(process.env.EVM_PRIVATE_KEY) });
const pay = wrapFetchWithPayment(fetch, client);

// Not sure it's safe to pay? ToolVet checks it first for $0.005. Pay for that from a separate
// client: this one is capped at $0.02 per payment. GET https://toolvet.app/api/v1/check?url=https%3A%2F%2Fnetwork-calc.x402tookit.com%2Fcidr-aggregate
const res = await pay("https://network-calc.x402tookit.com/cidr-aggregate?cidrs=10.0.0.0%2F24%2C10.0.1.0%2F24%2C10.0.2.0%2F25%2C10.0.2.128%2F25%2C10.0.3.0%2F24%2C10.0.8.0%2F24");
console.log(res.status, await res.text());

# pip install "x402[requests,evm]"
import os
from eth_account import Account
from x402 import x402ClientSync
from x402.http.clients import x402_requests
from x402.mechanisms.evm import EthAccountSigner
from x402.mechanisms.evm.exact.register import register_exact_evm_client

# Pays at most $0.02 per call.
client = x402ClientSync().set_spend_controls({"max_amount_per_payment": "$0.02"})
register_exact_evm_client(client, EthAccountSigner(Account.from_key(os.environ["EVM_PRIVATE_KEY"])))

with x402_requests(client) as session:
    res = session.get("https://network-calc.x402tookit.com/cidr-aggregate?cidrs=10.0.0.0%2F24%2C10.0.1.0%2F24%2C10.0.2.0%2F25%2C10.0.2.128%2F25%2C10.0.3.0%2F24%2C10.0.8.0%2F24")
    print(res.status_code, res.text)