POSThttps://yogataraapi.prahlad.app/api/astro/western/house-cusps/

Western house cusps

Request bodyJSON

Paste an API key above to send.

Code snippet

curl -X POST https://yogataraapi.prahlad.app/api/astro/western/house-cusps/ \
  -H "X-API-Key: $OCCULT_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"date_time":"1990-05-10T19:55:00+05:30","timezone_as_float":5.5,"latitude":19.2056,"longitude":25.2056,"house_system":"placidus"}'

Tropical house cusps, with the ascendant, midheaven and vertex. Eight house systems: placidus (the Western default), koch, porphyry, regiomontanus, campanus, equal, whole_sign and topocentric. Pass `house_system`; it defaults to placidus. The ascendant IS the first house cusp and the midheaven IS the tenth, and this endpoint returns them from a single calculation so they cannot disagree. Two exceptions, both correct rather than bugs: under whole_sign the first cusp is 0 degrees of the sign HOLDING the ascendant, not the ascendant itself, and under equal and whole_sign the midheaven floats free of the tenth cusp because those systems divide from the ascendant rather than from the meridian. TROPICAL, not sidereal — see /api/astro/western/planets/. For Vedic houses use /api/astro/house/ or /api/astro/bhava-cusps/, which are sidereal. Opposite cusps are exactly 180 degrees apart and the twelve advance in order round the zodiac; both are asserted by tests.

Request fields

Field	Type	Required	Notes
date_time	string (date-time)	required	The moment to calculate for, ISO 8601. ALWAYS include an offset or a trailing Z - a value with no zone is read as Asia/Kolkata (UTC+05:30), not UTC, and can return the previous day's result with a 200. '2026-09-01T06:00:00Z' and '2026-09-01 06:00:00' are different instants and give different answers.
latitude	number (double)	required	Latitude of the place, in decimal degrees. Positive is north, negative is south. Example: 26.9124 for Jaipur, 40.7128 for New York. Minutes and seconds are not accepted - convert first. min -89.9 · max 89.9
longitude	number (double)	required	Longitude of the place, in decimal degrees. Positive is east, negative is west. Example: 75.7873 for Jaipur, -74.0060 for New York. Note the sign: a missing minus puts New York in China. min -180 · max 180
timezone_as_float	number (double)	required	UTC offset of the place, in hours, as a decimal. Example: 5.5 for India (UTC+05:30), -5 for New York in winter, 5.75 for Nepal. This is NOT validated against date_time - if the two disagree you get a successful response for the wrong moment, so derive both from the same source. Use the offset in force on that date, not today's: a summer birth in a country with daylight saving needs the summer offset. min -12 · max 14
house_system	string	optional	`campanusequalkochplacidusporphyryregiomontanustopocentricwhole_sign`
keys	array	optional	Which calculations to return, as a list of names. See the key table for this endpoint; an unrecognised name rejects the whole request. One call costs one credit however many keys you ask for, so request everything you need at once rather than making several calls.

Full reference for this endpoint