Net present value (NPV) · NPV

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/npv", {
  method: "POST",
  headers: { "Content-Type": "application/json" },
  body: JSON.stringify({
    "cashflows": [
      -1000,
      300,
      400,
      500,
      600
    ],
    "discountRate": 0.1
  }),
});
const data = await res.json();

curl -X POST \
  "https://agent402.tools/api/npv" \
  -H "Content-Type: application/json" \
  -d '{"cashflows":[-1000,300,400,500,600],"discountRate":0.1}' \
  -H "X-PAYMENT: <signed x402 payment>"

{
  "discountRate": 0.1,
  "npv": 388.77,
  "presentValues": [
    -1000,
    272.73,
    330.58,
    375.66,
    409.81
  ],
  "undiscountedSum": 800
}