{"name":"business-days-api","version":"1.0.0","description":"Global business-day arithmetic with computed public-holiday calendars (US/UK/CA/AU). Add/subtract working days, count working days, holiday lists, observed-day shifting, Easter computus — deterministic, no DB, byte-reproducible for any year.","dates":"All dates are YYYY-MM-DD (UTC). country = US|UK|CA|AU|none (default US).","endpoints":{"POST /business-days":"Working days between two dates (skips weekends + holidays)","POST /add":"Add/subtract N working days from a date","POST /is-business-day":"Is a date a working day?","POST /next":"Next working day on/after a date","POST /previous":"Previous working day on/before a date","POST /holidays":"Public holidays for a country + year (raw + observed)","POST /date-diff":"Calendar difference (days/weeks + y/m/d breakdown)","GET /countries":"Supported holiday calendars"},"example":"POST /add {\"start\":\"2026-07-03\",\"days\":5,\"country\":\"US\"}"}