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Torii Japan Business Calendar — Add Business Days
x402
Torii Japan Business Calendar — Add Business Days is a paid API for AI agents from torii-gateway-production.ichis-lab.workers.dev, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-13).
Given a base date and an integer N, returns the Japanese business date that is N business days later (or earlier), accounting for Japanese national holidays.
Price / call$0.01
Success—
StatusUnknown
How this service works
Pay-per-call HTTP APIs for Japanese public data, metered with x402 (HTTP 402 + PAYMENT-SIGNATURE). Send a plain GET to receive 402 with the price and payment requirements, then resend the request with a signed payment. Only 2xx responses are charged; 4xx and 5xx are free. Per-operation payment metadata is published under the `x-payment-info` extension.
Output
A JSON object containing the computed result date (ISO 8601), the original base date, the N value applied, plus metadata fields: whether the data is stale, the source name (Cabinet Office of Japan), license ID, attribution string in Japanese, terms URL, and the timestamp the data was fetched.
Example use cases
Japanese invoice payment deadline calculator
“Our supplier invoice is dated 2026-03-25 and payment terms are net 10 business days in Japan — what's the actual due date accounting for spring holidays?”
T+2 settlement date for Japanese equity trade
“I executed a stock trade on the Tokyo Stock Exchange on 2026-04-28. What is the T+2 settlement date, skipping Japanese national holidays and weekends?”
Project deadline offset after Golden Week
“Our project kick-off is 2026-04-30 and the first deliverable is due 7 business days later — what calendar date is that, considering Golden Week?”
Technical details
Endpoint
GEThttps://torii-gateway-production.ichis-lab.workers.dev/v1/jp-biz-calendar/add-business-days?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need to offset a date by a precise number of Japanese business days and must correctly skip Japanese national holidays (not just weekends). It is ideal for financial settlement calculations (T+N), payroll due dates, contract deadlines, and logistics scheduling within Japan. Prefer it over generic business-day libraries that lack Japan-specific holiday data, and over the sibling 'is-business-day' endpoint when you need forward/backward date arithmetic rather than a simple yes/no check.
Side effects
- 404 (not charged): requested result date falls outside the years covered by the upstream holiday CSV
- 402: payment not yet sent — caller must resend with a valid x402 PAYMENT-SIGNATURE header
- 400: missing or malformed required query parameters (date not in YYYY-MM-DD format, n out of -3650..3650 range)
- 5xx: upstream gateway error (not charged)
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"data": {
"n": 5,
"date": "2026-01-05",
"result": "2026-01-13"
},
"meta": {
"stale": false,
"source_id": "jp-biz-calendar",
"terms_url": "https://www.cao.go.jp/notice/rule.html",
"fetched_at": "2026-09-21T03:00:00.000Z",
"license_id": "PDL-1.0",
"attribution": "出典:内閣府ウェブサイト(https://www8.cao.go.jp/chosei/shukujitsu/gaiyou.html)を加工して作成",
"source_name": "内閣府「国民の祝日について」",
"freshness_class": "static"
}
}
}Tags
x402
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