Cron next runs

Parse a 5-field cron expression and return the next N run times (UTC).

Input

Field	Type	Description
expr *	string	5-field cron: minute hour day-of-month month day-of-week
count	number	How many upcoming runs (1-20, default 5)
from	any	Start time (epoch/ISO, default now)

Example output

{
  "expr": "*/15 9-17 * * 1-5",
  "next": [
    "2026-06-11T09:00:00.000Z"
  ]
}

Try it — see the 402 challenge (free)

curl -i -X POST https://agent402.tools/api/cron-next \
  -H "Content-Type: application/json" \
  -d '{"expr":"*/15 9-17 * * 1-5","count":5}'

The response is HTTP 402 Payment Required with exact payment requirements. Any x402 v2 client pays automatically and retries:

Paid call (JavaScript agent)

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

const client = new x402Client();
registerExactEvmScheme(client, { signer: privateKeyToAccount(KEY) });
const payFetch = wrapFetchWithPayment(fetch, client);

const res = await payFetch("https://agent402.tools/api/cron-next", {
  method: "POST",
  headers: { "Content-Type": "application/json" },
  body: JSON.stringify({
    "expr": "*/15 9-17 * * 1-5",
    "count": 5
  }),
});

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