Koyomi Find

Last 30 days

Uptime

100%

Response time

44 ms typical, 44 ms slowest 5%

Last check

2 h ago

Next check

any minute now

How to call it

# See the payment challenge (nothing is charged)
curl -i -X GET "https://japan-business-day-api.matchan962.workers.dev/v1/koyomi/find?from=2026-10-01&rokuyo=taian&to=2026-12-31&weekdays=sat%2Csun"

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%2Fjapan-business-day-api.matchan962.workers.dev%2Fv1%2Fkoyomi%2Ffind
const res = await pay("https://japan-business-day-api.matchan962.workers.dev/v1/koyomi/find?from=2026-10-01&rokuyo=taian&to=2026-12-31&weekdays=sat%2Csun");
console.log(await res.json());

Example input

{
  "from": "2026-10-01",
  "rokuyo": "taian",
  "to": "2026-12-31",
  "weekdays": "sat,sun"
}

Example output

{
  "count": 2,
  "days": [
    {
      "date": "2026-10-25",
      "dayOfWeek": "Sunday",
      "rokuyo": "大安"
    },
    {
      "date": "2026-10-31",
      "dayOfWeek": "Saturday",
      "rokuyo": "大安"
    }
  ]
}

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