OCMA-Data is a structured Orthodox Calendar dataset providing JSON files for each liturgical day from 1924 to 2099, supporting both the Old Calendar (Julian) and New Calendar (Revised Julian).
It includes Feasts, Saints, Fasting rules, Lectionary information, Paschalion calculations, and Moon Phases. Data is fully multilingual with separate JSON files for English, Greek, Romanian and Russian.
Below are example endpoints for accessing the dataset.
Example:
Each calendar day supports multiple languages.