Anudinam API Documentation
A free, public, read-only REST API for Tamil Smārta Panchang data - Tithi, Nakshatra, festivals, and the calculation rules behind them. No API key required. Every response carries the same source/calculation-version/calculated-at provenance the canonical Panchang pages show.
| Method | Endpoint | Description |
|---|---|---|
| GET | /wp-json/anudinam/v1/towns | The towns the API and canonical Panchang pages support. |
| GET | /wp-json/anudinam/v1/panchang?date=YYYY-MM-DD&place=<town-slug> | Tithi, Nakshatra, Yogam, Karanam, and location-dependent timings for one date and town. |
| GET | /wp-json/anudinam/v1/events?from=YYYY-MM-DD&to=YYYY-MM-DD | Festivals/events in a date range, capped at 31 days. |
| GET | /wp-json/anudinam/v1/rules | The list of calculation rules (Rahu Kalam, Kari Naal, muhurta formulas, etc.) the site publishes definitions for. |
| GET | /wp-json/anudinam/v1/rules/<slug> | The full definition/formula for one rule from the /rules list above. |
| GET | /panchang/events.ics | An RFC 5545 ICS calendar feed of upcoming events, same 31-day window as /events - subscribe directly in a calendar app rather than polling the REST endpoint. |
Example requests
- https://anudinam.in/wp-json/anudinam/v1/towns
- https://anudinam.in/wp-json/anudinam/v1/panchang?date=2026-10-04&place=chennai
- https://anudinam.in/wp-json/anudinam/v1/events?from=2026-10-04&to=2026-10-11
- https://anudinam.in/wp-json/anudinam/v1/rules
- https://anudinam.in/wp-json/anudinam/v1/rules/rahu-kalam
- https://anudinam.in/panchang/events.ics
See Understanding Anudinam for the Tamil Smārta tradition and methodology behind these calculations.