Polystash Business Days API

Docs Pricing Changelog OpenAPI

Changelog

2026-09

Launch. 207 countries, SLA endpoint, iCalendar feeds, coverage flags.

Docs Pricing Changelog OpenAPI

Support: support@polystash.com

Holiday data derived from Nager.Date (MIT, snapshot 2024-02-22) and date-holidays (ISC and CC BY 3.0). Business-day logic, regional coverage and the precomputed calendars are the work of Polystash.