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Calendarific vs Unkey

A side-by-side comparison built from both listings. Blank cells mean the company has not given that detail; we never guess.

Calendarific compared with Unkey
DetailCalendarificUnkey
What it doesGlobal Holiday Calendar API for National and Religious Holidays The Developer Platform for Modern APIs
StageEstablished Growing
Founded2014 2023
Based inNot given Not given
Pricing modelNot given freemium
PricingNot given Free tier available; Starter plan at $5/month includes $5 usage credits; Pro plan at $25/month with $25 usage credits; Business plan at $50/month with $50 usage credits; Enterprise with custom pricing. All plans use usage-based billing for compute, storage, egress, and active keys.
Key features
  • Access to 230+ countries and 3,300+ states and regions
  • Holiday data in 100+ languages
  • Substitute days included
  • Regional granularity with state and province codes
  • Low latency responses under 10ms
  • Servers handling over half a billion API queries per day
  • Holiday data types: national, local, religious, and observance
  • Filter by month and day
  • Stable holiday UUIDs
  • JSON responses with copy-ready code samples
  • Git-based API deployments with automatic deployment on push
  • API key management and access control
  • Global edge gateways with multi-region routing
  • Real-time analytics and request logging
  • Developer portal with self-serve key and usage management
What makes it different
  • Developer-friendly approach with simple authentication and no SDK required
  • Data aggregated and verified from multiple sources
  • Enterprise-grade with SLA and dedicated account managers
  • Use-case-specific workflows for payroll, scheduling, and localization
  • Flexible localization with fallback to English
  • Single unified control plane for deployments, gateways, and observability
  • Deploy production APIs in minutes with instant rollback capability
  • Built-in protection with API keys, rate limiting, and instant access revocation
  • Every request logged and visible for debugging from day one
  • Global infrastructure that automatically scales without managing servers
Free planNot given Not given
Open sourceNot given Not given
PlatformsNot given Not given
Public APINot given Not given
Community votes00
DR (Domain Rating by Ahrefs)53 no change since last check70 no change since last check
Trust Flow (Majestic)2126
Citation Flow (Majestic)4244
Referring domains (Majestic)792867

5 details filled in for both companies.

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