caldays
API pricing · No lock-in

Simple, transparent pricing.

Free for fair use, affordable for production. Cancel anytime. Holiday data for 195 countries, real-time, CDN-cached.

Free
For hobby projects, prototypes, and small open-source apps.
$0
forever
10,000 requests / day
195 countries · 1900–2049
Long-weekend endpoint
CDN-cached, ~50ms latency
Community support
Most popular
Starter
For indie apps and SaaS tools.
$9
/month
100,000 requests / day
Everything in Free
Time-zone conversion endpoint
Historical data 1900–2049
Email support (24h)
Pro
For production apps with growing traffic.
$29
/month
1,000,000 requests / day
Everything in Starter
No per-IP rate-limit
Webhook on holiday updates
Priority email support (4h)
Enterprise
For high-traffic platforms and regulated industries.
Custom
Unlimited requests
Dedicated SLA (99.99%)
Self-hosted / on-prem option
Custom holiday data ingestion
Slack support channel
No card for Free
Just an email — generate your key.
Cancel anytime
Stripe-managed. Pro-rated refunds.
195 countries
Algorithmic Easter, Hijri lookup, Asian moon-based holidays.
99.95% uptime
Multi-region CDN on Cloudflare Workers.

Frequently asked questions

What counts as a "request"?
Every API call that returns a 2xx response. 4xx/5xx are not billed.
Do you store my data?
No. Our API is purely read-only and doesn't process user-submitted data.
Can I self-host the data?
Yes — Enterprise tier ships a Docker image with the full holiday database.
What payment methods are accepted?
All major cards (Visa, Mastercard, Amex), Apple Pay, Google Pay via Stripe. Wire transfer for Enterprise.
Is there a free trial for paid plans?
Yes — 14-day trial on Starter and Pro. No credit card required.
API pricing
Start with the free tier — no card needed