Pan Scaling

{
  "areaScaleFactor": 1.83912,
  "asOf": "2026-10-11T14:26:09.526Z",
  "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.",
  "notChecked": [
    "real pan capacity: the geometry here uses the inside dimensions to the rim, and published pan capacities run 10 to 15% lower (rounded corners, sloped sides, and the batter fills only half to two-third…",
    "baking time, which depends on batter depth: a recipe in a shallower pan bakes faster",
    "…2 more"
  ],
  "panFrom": {
    "areaSquareInches": 63.617,
    "heightInches": 2,
    "shape": "round",
    "volumeCubicInches": 127.23,
    "volumeCups": 8.813,
    "volumeMl": 2085
  },
  "panTo": {
    "areaSquareInches": 117,
    "heightInches": 2,
    "shape": "rect",
    "volumeCubicInches": 234,
    "volumeCups": 16.21,
    "volumeMl": 3835
  },
  "reasons": [
    "Volume = area x height; 1 US cup = 14.4375 cubic inches (236.588 mL).",
    "Heights match, so volume and area scale the same.",
    "…1 more"
  ],
  "source": "computed locally",
  "summary": "The new pan holds 16.21 cups against 8.813 (volume ratio 1.839); scale the recipe by about 1.84.",
  "unit": "in",
  "verdict": "NEED_MORE_BATTER",
  "volumeScaleFactor": 1.83912
}

# bash or zsh: see the payment challenge. Nothing is charged.
curl -sS -g -i 'https://cooking-calc.x402tookit.com/pan-scaling?from=round%3A9x2&to=rect%3A9x13x2&unit=in'

# 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://cooking-calc.x402tookit.com/pan-scaling?from=round%3A9x2&to=rect%3A9x13x2&unit=in' \
  | 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%2Fcooking-calc.x402tookit.com%2Fpan-scaling
const res = await pay("https://cooking-calc.x402tookit.com/pan-scaling?from=round%3A9x2&to=rect%3A9x13x2&unit=in");
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://cooking-calc.x402tookit.com/pan-scaling?from=round%3A9x2&to=rect%3A9x13x2&unit=in")
    print(res.status_code, res.text)