{"version":1,"sources":[{"id":"jp-biz-calendar","category":"practical","title":"Japan Business Calendar","description_en":"Japanese national holidays and business-day calculations derived from the Cabinet Office official CSV. Returns holidays for a given year, plus business-day arithmetic used by invoicing, logistics and HR systems in Japan.","endpoints":[{"name":"holidays","path":"/v1/jp-biz-calendar/holidays","description":"List Japanese national holidays for a year","params":{"year":{"type":"integer","required":true,"description_en":"Calendar year (Gregorian). Accepted range is 1955-2100, but only years covered by the upstream Cabinet Office CSV can be answered; years outside the covered range return 404 and are not charged.","minimum":1955,"maximum":2100,"example":2026}},"price_usd":0.01},{"name":"is-business-day","path":"/v1/jp-biz-calendar/is-business-day","description":"Tell whether a given date is a Japanese business day","params":{"date":{"type":"string","required":true,"description_en":"Date to check, in YYYY-MM-DD (ISO 8601 calendar date, interpreted in UTC). Dates outside the years covered by the upstream CSV return 404 and are not charged.","pattern":"^\\d{4}-\\d{2}-\\d{2}$","example":"2026-01-05"}},"price_usd":0.01},{"name":"add-business-days","path":"/v1/jp-biz-calendar/add-business-days","description":"Add or subtract business days from a given date","params":{"date":{"type":"string","required":true,"description_en":"Base date, in YYYY-MM-DD (ISO 8601 calendar date, interpreted in UTC). Results outside the years covered by the upstream CSV return 404 and are not charged.","pattern":"^\\d{4}-\\d{2}-\\d{2}$","example":"2026-01-05"},"n":{"type":"integer","required":true,"description_en":"Business days to add; negative goes backwards. 0 returns the base date if it is a business day, else the next one (never the previous). From a non-business base date, n=1 lands on the same day as n=0.","minimum":-3650,"maximum":3650,"example":5}},"price_usd":0.01},{"name":"wareki","path":"/v1/jp-biz-calendar/wareki","description":"Convert a Gregorian date to the Japanese imperial era (wareki)","params":{"date":{"type":"string","required":true,"description_en":"Date to convert, in YYYY-MM-DD (UTC). Must be between 1873-01-01 (when Japan adopted the Gregorian calendar) and 2100-12-31; dates outside that range return 400, uncharged.","pattern":"^\\d{4}-\\d{2}-\\d{2}$","example":"2026-01-05"}},"price_usd":0.01}],"pricing":{"model":"per_call","usd":0.01,"free_tier":{"per_day":10,"unit":"ip_hash"}},"freshness":"static","license":{"source_name":"内閣府「国民の祝日について」","terms_url":"https://www.cao.go.jp/notice/rule.html","license_id":"PDL-1.0","attribution_required":true,"attribution_text":"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","commercial_ok":true},"status":"active","health":{"last_ok_at":"2026-09-16T04:41:08.052Z"}}]}