Forecast Holt Winters

Last 30 days

Uptime

100%

Response time

191 ms typical, 312 ms slowest 5%

Last check

1 h ago

Next check

any minute now

How to call it

# See the payment challenge (nothing is charged)
curl -i -X POST "https://agent402.tools/api/forecast-holt-winters" \
  -H "content-type: application/json" \
  -d '{"horizon":4,"period":4,"values":[10,14,18,22,11,15,19,23,12,16,20,24]}'

import { wrapFetchWithPayment } from "@x402/fetch";
import { x402Client } from "@x402/core/client";
import { ExactEvmScheme } from "@x402/evm/exact/client";
import { privateKeyToAccount } from "viem/accounts";

const client = new x402Client().register(
  "eip155:8453",
  new ExactEvmScheme(privateKeyToAccount(process.env.AGENT_KEY)),
);
const pay = wrapFetchWithPayment(fetch, client);

// Not sure it's safe to pay? Preflight it first for $0.005:
// GET https://toolvet.app/api/v1/check?url=https%3A%2F%2Fagent402.tools%2Fapi%2Fforecast-holt-winters
const res = await pay("https://agent402.tools/api/forecast-holt-winters", {
  method: "POST",
  headers: { "content-type": "application/json" },
  body: JSON.stringify({"horizon":4,"period":4,"values":[10,14,18,22,11,15,19,23,12,16,20,24]}),
});
console.log(await res.json());

Example input

{
  "horizon": 4,
  "period": 4,
  "values": [
    10,
    14,
    18,
    22,
    11,
    15,
    19,
    23,
    12,
    16,
    20,
    24
  ]
}

Example output

{
  "alpha": 0.5,
  "beta": 0.1,
  "forecast": [
    {
      "lower95": 11.6958,
      "point": 12.5324,
      "step": 1,
      "upper95": 13.369
    },
    {
      "lower95": 15.5421,
      "point": 16.7253,
      "step": 2,
      "upper95": 17.9084
    },
    {
      "lower95": 19.4972,
      "point": 20.9462,
      "step": 3,
      "upper95": 22.3952
    },
    {
      "lower95": 23.5098,
      "point": 25.1831,
      "step": 4,
      "upper95": 26.8563
    }
  ],
  "gamma": 0.1,
  "horizon": 4,
  "method": "holt-winters",
  "n": 12,
  "period": 4,
  "periodSource": "provided",
  "seasonality": "additive"
}

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