Pizza Order

{
  "areaPerGuestSqIn": 67.02,
  "areaPerPizzaSqIn": 201.06,
  "areaPerSliceSqIn": 25.13,
  "areaRatioToCompare": 1.778,
  "asOf": "2026-10-12T01:45:05.303Z",
  "compareDiameterIn": 12,
  "comparePizzasForSameArea": 18,
  "degraded": false,
  "diameterIn": 16,
  "disclaimer": "Screening signal computed from the named public source. Not financial, legal or investment advice; provided as is. Verify at the source before acting.",
  "guests": 30,
  "kids": 10,
  "notChecked": [
    "dietary needs (vegetarian, gluten-free), toppings split and sides",
    "that thick crusts and deep dish feed fewer people per inch",
    "…1 more"
  ],
  "pizzasToOrder": 10,
  "reasons": [
    "Slices = adults x 3 + children x 2, plus 0% extra, divided by 8 per pizza and rounded up.",
    "A pizza's area grows with the square of its diameter, so one 16 inch pizza is about 1.78 times a 12 inch one."
  ],
  "slicesNeeded": 80,
  "slicesPerPizza": 8,
  "source": "computed locally (pizza area = pi x radius squared; slices per guest are inputs)",
  "spareSlices": 0,
  "summary": "10 pizza(s) of 16 in (8 slices each) for 80 slices; 67 sq in per guest. The same area in 12 in pizzas takes 18.",
  "totalAreaOrderedSqIn": 2010.6,
  "verdict": "COMPUTED"
}

# bash or zsh: see the payment challenge. Nothing is charged.
curl -sS -g -i 'https://party-event-calc.x402tookit.com/pizza-order?guests=30&kids=10'

# 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://party-event-calc.x402tookit.com/pizza-order?guests=30&kids=10' \
  | 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%2Fparty-event-calc.x402tookit.com%2Fpizza-order
const res = await pay("https://party-event-calc.x402tookit.com/pizza-order?guests=30&kids=10");
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://party-event-calc.x402tookit.com/pizza-order?guests=30&kids=10")
    print(res.status_code, res.text)