API archive entry · source-reported
Non-Working Days
Simple REST API for checking working, non-working or short days for Russia, CIS, USA and other
Decision snapshot
Non-Working Days is catalogued as a Calendar API from Non-Working Days. The directory reports no auth authentication, HTTPS support, and CORS as yes.
- Category
- Calendar
- Authentication
- No auth
- HTTPS
- Reported
- CORS
- Yes
Evaluation pathway
- Define endpoints, fields, freshness, and expected request volume.
- Read the live source and confirm access, terms, limits, and version.
- Test representative inputs, errors, latency, pagination, and data quality.
- Plan monitoring, retries, caching, version pinning, and a fallback.
What still needs verification
Pricing and quotas
Confirm current plans, free-tier limits, overages, and request ceilings.
Endpoint coverage
Check that the operations and response fields match the intended workload.
Reliability
Look for uptime history, a status page, support routes, and service commitments.
Data and privacy
Review retention, licensing, regional processing, and compliance requirements.
Versioning
Confirm the active version, change policy, deprecation window, and migration guidance.
Developer experience
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Nearby Calendar options
caldays
Public holidays for 195+ countries
No auth · HTTPS reported · CORS Yes
Namedays Calendar
Provides namedays for multiple countries
No auth · HTTPS reported · CORS Yes
The Calendar
Public holidays for US states and 30 countries plus sports and finance calendars as static JSON
No auth · HTTPS reported · CORS Yes
Source reference
This page separates source-reported facts from questions that need live provider verification.