| What it does | Every webhook kept, even when your server is down
| Global Holiday Calendar API for National and Religious Holidays
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| Stage | Not given
| Established
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| Founded | Not given
| 2014
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| Based in | Not given
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| Pricing model | freemium
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| Pricing | Not given
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| Key features | - Webhook storage and replay
- Automatic retries with configurable schedules
- Signature verification for 21+ webhook sources
- Dashboard with event logging and history
- APIs for AI agents with MCP and REST
- Event filters and rate limiting
- Slack and Discord alerts
- Tamper-evident event archives
| - 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
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| What makes it different | - No SDK or code changes required; just redirect webhook URL to AnyHook
- Events retained for up to 7 years with full replay capability
- Unified signature verification across 21+ webhook providers
- Handles long-running async operations with 202 Accepted pattern support
- Metered overage on paid plans so events are never silently dropped
| - 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
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| Free plan | Not given
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| Open source | Not given
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| Platforms | Not given
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| Public API | Not given
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| Community votes | 0 | 0 |
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| DR (Domain Rating by Ahrefs) | Not checked yet ● no change since last check | 53 ● no change since last check |
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| Trust Flow (Majestic) | 7 | 21 |
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| Citation Flow (Majestic) | 25 | 42 |
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| Referring domains (Majestic) | 65 | 792 |
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