Inday

Inday offers a web‑based API that returns public holiday data for more than one countries. The service supplies dates, names and classifications of holidays, allowing applications to determine whether a given day is a working day or a holiday. Responses are formatted for programmatic consumption, enabling developers to embed holiday awareness into scheduling, payroll, booking or any time‑sensitive logic.

The API is designed for ease of integration: developers can query the endpoint with a country code and a date range to receive a list of relevant holidays, and the documentation includes example requests and response structures. Because the data set spans a wide geographic scope, the same interface can be reused across multiple markets without needing separate sources for each locale.

Inday is positioned as a lightweight, developer‑focused tool that abstracts the complexity of maintaining holiday calendars. It is currently in an experimental maturity stage, indicating that the service is functional but may still be evolving.