LectServe vs The Calendar

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.

The Calendar publishes pre-generated, static JSON (and downloadable .ics) files for US federal and all-50-state holidays (2025–2028), 30 countries' public holidays, plus FOMC meeting dates, US tax deadlines, market holidays, and key-date calendars for a dozen sports leagues. Every one of its 99 documented endpoints is a flat file behind Cloudflare, so there's no authentication, no rate limit, and CORS is wide open — licensed CC BY 4.0 as long as you link back.