API & Widget Subscriptions
Choose the plan that fits your developer scope or company compliance.
Developer
For personal projects and hobbyists.
$0/ forever
- 1,000 API requests / month
- Access to all 156 countries
- Standard widgets embed
- Community Support
Popular
Pro / Startup
For scaling sites and digital products.
$29/ per month
- 100,000 API requests / month
- White-label custom widgets
- Email priority support (24h)
- SLA 99.9% uptime guarantee
Enterprise
For global networks and financial APIs.
$149/ per month
- Unlimited API requests
- Real-time calendar Webhooks
- Dedicated Slack support channel
- Custom historical audits (back to 1990)
Frequently Asked Questions
How accurate is the holiday data?
Our database utilizes the Knowledge Graph Engine which fetches directly from official government journals. All mobile holidays (such as Easter offset calendars) are computed using verified mathematical modules.
Can I customize the widgets?
Yes! On the Pro plan, you can customize colors, dimensions, and languages, and embed the widgets on your website without any backlink or watermark.