01
Liturgical calendar
Days, seasons, colours, celebrations, collects and readings. Query one date, a month, or the whole shape of the year.
Open reference →An API by Caminho AnglicanoThe liturgy, arranged
The liturgy, arranged
to be queried.
Estêvão brings together the calendar, readings, collects, prayer books and Bible versions. Name the tradition and the date to get the liturgical data that belongs to them.
Sources and choices
EESTÊVÃO / V1
Queries
01 / What the catalogue holds
Not a list of dates with saints' names attached.
A single query can carry the liturgical day, the celebration, the colour, the collects and the readings that go with them. Prayer books and lectionary variants stay explicit in the response — the response never hides where a choice came from.
02
Prayer books
Available editions, jurisdiction, language, offices and the preferences each book carries, lectionary variants included.
Open reference →03
Text and context
Bible versions, references and explanations that record the choices used to assemble each liturgical response.
Open reference →02 / A real query
The response shows where it came from.
For 25 March 2026, say, you can ask for the day according to the BCP 1662 and pick the table revised in 1922. The chosen variant comes back alongside the readings.
GET /liturgical_explanation/2026/03/25200 · JSON
{
"data": {
"date": "2026-03-25",
"prayer_book_code": "loc_1662_en",
"reading_guide": {
"lectionary": { "code": "revised_1922" }
},
"readings": [
{ "slot": "first_reading",
"reference": "Isaiah 52:7-12",
"service_type": "morning_prayer" }
]
}
}03 / For MCP clients
Use the catalogue in your MCP client.
The MCP server connects compatible clients to the same catalogue. Sign-in happens in the browser and the tools are read-only.
> what are the readings for next Sunday?
Set up the MCP server →04 / Getting started
Look at the response first.
The documentation covers authentication, parameters and example responses. In the playground your key is attached on the server, so it never has to be pasted on screen.