Payapi · Mortgage Calculator

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://finance.payapi.market/mortgage-calculator", {
  method: "POST",
  headers: { "Content-Type": "application/json" },
  body: JSON.stringify({
    "deposit": 35000,
    "interest_rate": 4.5,
    "is_interest_only": false,
    "property_price": 350000,
    "term_years": 25
  }),
});
const data = await res.json();

curl -X POST \
  "https://finance.payapi.market/mortgage-calculator" \
  -H "Content-Type: application/json" \
  -d '{"deposit":35000,"interest_rate":4.5,"is_interest_only":false,"property_price":350000,"term_years":25}' \
  -H "X-PAYMENT: <signed x402 payment>"

{
  "annual_cost": 21019.44,
  "deposit": 35000,
  "interest_rate": 4.5,
  "loan_amount": 315000,
  "ltv_percent": 90,
  "monthly_payment": 1751.62,
  "property_price": 350000,
  "term_years": 25,
  "total_interest": 210486,
  "total_paid": 525486,
  "type": "Repayment"
}