Internal rate of return (IRR) · IRR

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

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

{
  "converged": true,
  "irr": 0.248883,
  "iterations": 6,
  "npvAtIrr": 0
}