Calendar · head-to-head
caldays vs LectServe
Caldays provides free public holiday data for 206 countries in JSON format, plus long-weekend calculations and a world clock endpoint. Anonymous use is capped at 10,000 requests per day; a metered API key raises the limit for higher-volume needs. The holiday data carries a CC BY 4.0 licence, so users must credit Caldays in their app.
LectServe is a one-person hobby project publishing the daily and Sunday Revised Common/ACNA lectionary readings for Protestant and Anglican churches, with morning/evening prayer citations linked out to Bible Gateway. It answers in either shape depending on the path: /today and /date/YYYY-MM-DD return JSON, while a path like /html/daily/YYYY-MM-DD returns a full HTML page meant to be embedded or scraped — and there's no API key, rate limit, or pricing of any kind — it's maintained by its author, Michael Wayne Arnold, as a labor of love alongside his personal site.
| caldays | LectServe | |
|---|---|---|
| Authentication | None | None |
| Pricing | freemium | free |
| Formats | JSON | JSON, HTML |
| CORS | yes | yes |
| HTTPS | Yes | Yes |
LectServe supports 2 response formats, while caldays offers fewer — pick LectServe for more integration flexibility.