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Japan Business Day API

Japanese traditional calendar for a date: rokuyo (taian/butsumetsu... lucky days used for weddings, funerals, contracts), Japanese era (Reiwa) date, old lunisolar calendar date incl. leap months, 24 solar terms (sekki) and year eto. Verified against the National Astronomical Observatory of Japan.

Visit japan-business-day-api.matchan962.workers.dev

Hostjapan-business-day-api.matchan962.workers.dev
Price$0.005–$0.01 per call
NetworkBase
Paid endpoints listed10
Calls, last 30 days*36
Most unique payers on one endpoint (30 days)*6
Last paid call*2026-10-15
Tagsjapan, business-day, holiday, fintech, logistics

* From the public x402 Bazaar index (snapshot 2026-10-18T04:07Z); reported by the facilitator, not measured by us.

Endpoints

URLMethodPrice
https://japan-business-day-api.matchan962.workers.dev/v1/koyomi
Japanese traditional calendar for a date: rokuyo (taian/butsumetsu... lucky days used for weddings, funerals,…		GET$0.005
https://japan-business-day-api.matchan962.workers.dev/v1/jpx/trading-day
Is the Tokyo Stock Exchange (JPX/TSE) open on a date? Returns closed reasons, next/previous trading day and the…		GET$0.005
https://japan-business-day-api.matchan962.workers.dev/v1/is-business-day
Is a given date a business day in Japan? Returns weekday/holiday status, official holiday name (JA/EN) and…		GET$0.005
https://japan-business-day-api.matchan962.workers.dev/v1/jpx/record-date
Japanese equities dividend/shareholder-benefit schedule: from a record date (kenri kakutei-bi) returns the last…		GET$0.01
https://japan-business-day-api.matchan962.workers.dev/v1/holidays
List all Japanese national holidays (JA/EN names) for a year, from official Cabinet Office data.		GET$0.01
https://japan-business-day-api.matchan962.workers.dev/v1/add-business-days
Add or subtract N Japanese business days from a date (e.g. settlement date T+2, delivery ETA). Skips weekends and…		GET$0.01
https://japan-business-day-api.matchan962.workers.dev/v1/bank-value-date
When will a bank transfer in Japan be credited? Given the submission time, returns the value date under standard…		GET$0.01
https://japan-business-day-api.matchan962.workers.dev/v1/payment-due-date
Japanese payment terms calculator (shimebi/shiharaibi): e.g. 'month-end close, paid end of next month', shifted to the…		GET$0.01
https://japan-business-day-api.matchan962.workers.dev/v1/jpx/sq
Nikkei 225 futures/options SQ (special quotation) day for a contract month: 2nd Friday, moved earlier if a non-trading…		GET$0.01
https://japan-business-day-api.matchan962.workers.dev/v1/koyomi/find
Find auspicious dates in Japan: list days in a range (up to 366 days) matching rokuyo (e.g. taian) and optional…		GET$0.01

Source: x402 Bazaar discovery API (Coinbase CDP) · Licence: Public discovery metadata; descriptions by each provider. Listed in x402 pay-per-call APIs. We list tools; we do not test, rate or endorse them.

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