{"name":"Japan Business Day API","description":"Japan business-day & financial calendar API for AI agents: business days, holidays, bank transfer value dates, payment terms, Tokyo Stock Exchange trading days, dividend record dates, SQ days and the traditional calendar (rokuyo lucky days, era dates, solar terms). Pay per request in USDC via x402.","openapi":"https://japan-business-day-api.matchan962.workers.dev/openapi.json","mcp":"https://japan-business-day-api.matchan962.workers.dev/mcp","pricing":{"/v1/is-business-day":"$0.005","/v1/add-business-days":"$0.01","/v1/holidays":"$0.01","/v1/payment-due-date":"$0.01","/v1/bank-value-date":"$0.01","/v1/jpx/trading-day":"$0.005","/v1/jpx/record-date":"$0.01","/v1/jpx/sq":"$0.01","/v1/koyomi":"$0.005","/v1/koyomi/find":"$0.01"},"networks":["eip155:8453","eip155:137"],"dataSource":"https://www8.cao.go.jp/chosei/shukujitsu/syukujitsu.csv","dataFetchedAt":"2026-09-26T06:19:29.697Z","supportedRange":{"from":"1955-01-01","until":"2027-12-31"},"attribution":{"holidays":{"ja":"「国民の祝日について」（内閣府）（https://www8.cao.go.jp/chosei/shukujitsu/gaiyou.html）の祝日データ（syukujitsu.csv）を加工して作成","en":"Created by processing the \"National Holidays\" data (syukujitsu.csv) published by the Cabinet Office, Government of Japan (https://www8.cao.go.jp/chosei/shukujitsu/gaiyou.html), under the Public Data License (Version 1.0). This service is not provided or endorsed by the Government of Japan."},"koyomi":{"ja":"六曜・旧暦・二十四節気は本サービスが天文計算で独自に算出（国立天文台「暦要項」と照合。国立天文台が本サービスを保証するものではありません）","en":"Rokuyo, lunisolar dates and solar terms are computed by this service using astronomical algorithms and checked against the NAOJ almanac. NAOJ does not endorse this service."}},"terms":"https://japan-business-day-api.matchan962.workers.dev/terms","contact":"matchan962@gmail.com","privacy":"https://japan-business-day-api.matchan962.workers.dev/privacy"}