Amortization schedule · Amortization

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/amortization", {
  method: "POST",
  headers: { "Content-Type": "application/json" },
  body: JSON.stringify({
    "annualRate": 0.06,
    "maxRows": 3,
    "principal": 200000,
    "termYears": 30
  }),
});
const data = await res.json();

curl -X POST \
  "https://agent402.tools/api/amortization" \
  -H "Content-Type: application/json" \
  -d '{"annualRate":0.06,"maxRows":3,"principal":200000,"termYears":30}' \
  -H "X-PAYMENT: <signed x402 payment>"

{
  "payment": 1199.1,
  "periods": 360,
  "rowsReturned": 3,
  "schedule": [
    {
      "balance": 199800.9,
      "interest": 1000,
      "payment": 1199.1,
      "period": 1,
      "principal": 199.1
    },
    {
      "balance": 199600.8,
      "interest": 999,
      "payment": 1199.1,
      "period": 2,
      "principal": 200.1
    },
    {
      "balance": 199399.71,
      "interest": 998,
      "payment": 1199.1,
      "period": 3,
      "principal": 201.1
    }
  ],
  "totalInterest": 231676.38,
  "totalPaid": 431676.38
}