Forecast (Holt linear trend) · Forecast Holt

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/forecast-holt", {
  method: "POST",
  headers: { "Content-Type": "application/json" },
  body: JSON.stringify({
    "alpha": 0.5,
    "beta": 0.3,
    "horizon": 3,
    "values": [
      100,
      105,
      111,
      118,
      124,
      131,
      137,
      144,
      150,
      157
    ]
  }),
});
const data = await res.json();

curl -X POST \
  "https://agent402.tools/api/forecast-holt" \
  -H "Content-Type: application/json" \
  -d '{"alpha":0.5,"beta":0.3,"horizon":3,"values":[100,105,111,118,124,131,137,144,150,157]}' \
  -H "X-PAYMENT: <signed x402 payment>"

{
  "alpha": 0.5,
  "beta": 0.3,
  "forecast": [
    {
      "lower95": 161.6463,
      "point": 163.2012,
      "step": 1,
      "upper95": 164.756
    },
    {
      "lower95": 167.8871,
      "point": 169.7416,
      "step": 2,
      "upper95": 171.596
    },
    {
      "lower95": 174.049,
      "point": 176.282,
      "step": 3,
      "upper95": 178.515
    }
  ],
  "horizon": 3,
  "method": "holt",
  "n": 10
}