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Church Calendar

Catholic liturgical day, season and feast lookups as JSON

💬 Social & WorkUNMONITORED
AUTH NONECORS ✓AGENT ?HTTPS ✗COMMERCIAL ?

Returns the Roman Catholic liturgical calendar for any date: the season, week number, weekday and the day's celebrations with their liturgical colour and rank. Multiple language calendars are available in the path. Served over plain HTTP only.

—HOW IT'S SCORED ⓘ
Docs ↗
Status badge · for your READMEshipapis health badge: — · unmonitored
ON PROBE SCHEDULE

We probe a documented GET and expect 2xx JSON — full uptime and health score. Open provider docs ↗

Uptime historystarts after first probe

On our probe schedule. Uptime charts appear after the first check lands.

Example responsefrom provider docs — not verified by us
GET http://calapi.inadiutorium.cz/api/v0/en/calendars/general-en/today

{
  "date": "2026-07-05",
  "season": "ordinary",
  "season_week": 14,
  "celebrations": [
    {
      "title": "14th Sunday in Ordinary Time",
      "colour": "green",
      "rank": "Sunday",
      "rank_num": 2.6
    }
  ],
  "weekday": "sunday"
}
Call itcurl · fetch · python
curl "http://calapi.inadiutorium.cz/api/v0/en/calendars/general-en/today"
const res = await fetch("http://calapi.inadiutorium.cz/api/v0/en/calendars/general-en/today");
const data = await res.json();
console.log(data);
import requests

res = requests.get("http://calapi.inadiutorium.cz/api/v0/en/calendars/general-en/today")
print(res.json())

BROWSER CALLS BLOCKED (NO CORS/HTTPS) — USE THE CURL SNIPPET

Endpoints · 5On scheduleFULL DOCS ↗
On schedule — GET /en/calendars/general-en/today awaits first probe
GET/en/calendars/general-en/todayPROBED

Catholic liturgical day, season and feast lookups as JSON

GET/en

En — documented GET route.

GET/en/1

En details by ID (example: 1).

GET/en?limit=10

En — documented GET route.

GET/en/search?q=test

Search by query parameters.

Machine-readable spec

We probe a documented GET and expect 2xx JSON — full uptime and health score. Export includes every documented route below.

Response-shape history

Not tracked yet. Shape-change history starts once this API joins our probe schedule.

Church Calendar: common questions

Is Church Calendar free to use?

Yes — Church Calendar is a free social & work API. Free tier: Free — limits not published. Whether the free tier allows commercial use is unclear — check the provider docs.

Does Church Calendar need an API key?

No — Church Calendar needs no API key or signup. You can call it straight away; rate limits still apply (Unpublished).

Can I call Church Calendar from the browser?

Not directly — Church Calendar doesn't send browser-friendly CORS headers, so call it from a server or proxy instead. Copy the curl or Python snippet on this page to get started.

Is Church Calendar up right now?

Church Calendar is catalogued but not yet on our probe schedule, so we don't publish a live status for it. Check the provider's own status page or docs for its current state.