POST/api/astro/western/transits/1 credit

Transits to natal

Today's sky against a birth chart. Every aspect from the transiting planets at `transit_date_time` to the natal planets at `date_time` — the everyday question of Western practice, and one a single-chart endpoint cannot answer however many times you call it. Reported transit-first, so `transit: saturn, natal: sun, aspect: square` reads as transiting Saturn square natal Sun, which is the direction practitioners state it in. Both charts come back in full alongside the aspects.

https://yogataraapi.prahlad.app/api/astro/western/transits/

Test Request

Authentication

Send your key in the X-API-Key header. Keys are server-side credentials — never put one in browser JavaScript or a mobile app.

X-API-Key: yt_live_a1b2c3d4_…
Content-Type: application/json

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.
datetime_end	string (date-time)	required
datetime_start	string (date-time)	required
keys	array	required	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.
planet	string	required
tz	number (double)	required	min -12 · max 14
celestial	string	optional
celestial1	string	optional
celestial2	string	optional
degr	number (double)	optional
latitude	number (double)	optional	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)	optional	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
nakshatras	string	optional
when	string	optional
x2cross	number (double)	optional

Example request

curl -X POST https://yogataraapi.prahlad.app/api/astro/western/transits/ \
  -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":26.9124,"longitude":75.7873,"transit_date_time":"2026-09-08T00:00:00+00:00","orb_factor":1}'

Response

{
  "_truncated": true,
  "_note": "Response shortened for the catalogue.",
  "preview": "{\"data\": {\"zodiac\": \"tropical\", \"orb_factor\": 1.0, \"natal\": [{\"name\": \"sun\", \"longitude\": 49.66766, \"speed\": 0.96609, \"retrograde\": false, \"sign\": \"Taurus\", \"sign_index\": 2, \"degree_in_sign\": 19.6677, \"formatted\": \"19°40' Taurus\"}, {\"name\": \"moon\", \"longitude\": 238.259725, \"speed\": 11.874218, \"retrograde\": false, \"sign\": \"Scorpio\", \"sign_index\": 8, \"degree_in_sign\": 28.2597, \"formatted\": \"28°15' Scorpio\"}, {\"name\": \"mercury\", \"longitude\": 39.452338, \"speed\": -0.452198, \"retrograde\": true, \"sign\": \"Taurus\", \"sign_index\": 2, \"degree_in_sign\": 9.4523, \"formatted\": \"9°27' Taurus\"}, {\"name\": \"venus\", \"longitude\": 7.250368, \"speed\": 1.132131, \"retrograde\": false, \"sign\": \"Aries\", \"sign_index\": 1, \"degree_in_sign\": 7.2504, \"formatted\": \"7°15' Aries\"}, {\"name\": \"mars\", \"longitude\": 344.690843, \"speed\": 0.744344, \"retrograde\": false, \"sign\": \"Pisces\", \"sign_index\": 12, \"degree_in_sign\": 14.6908, \"formatted\": \"14°41' Pisces\"}, {\"name\": \"jupiter\", \"longitude\": 98.630274, \"speed\": 0.182781, \"retrograde\": false, \"sign\": \"Cancer\", \"sign_index\": 4, \"degree_in_sign\": 8.6303, \"formatted\": \"8°37' Cancer\"}, {\"name\": \"saturn\", \"longitude\": 295.313114, \"speed\": -0.009099, \"retrograde\": true, \"sign\": \"Capricorn\", \"sign_index\": 10, \"degree_in_sign\": 25.3131, \"formatted\": \"25°18' Capricorn\"}, {\"name\": \"uranus\", \"longitude\": 279.296197, \"speed\": -0.021248, \"retrograde\": true, \"sign\": \"Capricorn\", \"sign_index\": 10, \"degree_in_sign\": 9.2962, \"formatted\": \"9°17' Capricorn\"}, {\"name\": \"neptune\", \"longitude\": 284.419553, \"speed\": -0.012489, \"retrograde\": true, \"sign\": \"Capricorn\", \"sign_index\": 10, \"degree_in_sign\": 14.4196, \"formatted\": \"14°25' Capricorn\"}, {\"name\": \"pluto\", \"longitude\": 226.304012, \"speed\": -0.028026, \"retrograde\": true, \"sign\": \"Scorpio\", \"sign_index\": 8, \"degree_in_sign\": 16.304, \"formatted\": \"16°18' Scorpio\"}, {\"name\": \"north_node\", \"longitude\": 310.874753, \"speed\": -0.221102, \"retrograde\": true, \"sign\": \"Aquarius\", \"sign_index\": 11, \"degree_in_sign\": 10.8748, \"formatted\": \"10°52' Aquarius\"}, {\"name\": \"chiron\", \"longitude\": 102.832128, \"speed\": 0.075226, \"retrograde\": false, \"sign\": \"Cancer\", \"sign_index\": 4, \"degree_in_sign\": 12.8321, \"formatted\": \"12°49' Cancer\"}], \"transiting\": [{\"name\": \"sun\", \"longitude\": 165.376696, \"speed\": 0.970991, \"retrograde\": false, \"sign\": \"Virgo\", \"sign_index\": 6, \"degree_in_sign\": 15.3767, \"formatted\": \"15°22' Virgo\"}, {\"name\": \"moon\", \"longitude\": 124.270276, \"speed\": 14.272594, \"retrograde\": false, \"sign\": \"Leo\", \"sign_index\": 5, \"degree_in_sign\": 4.2703, \"formatted\": \"4°16' Leo\"}, {\"name\": \"mercury\", \"longitude\": 175.395589, \"speed\": 1.743494, \"retrograde\": false, \"sign\": \"Virgo\", \"sign_index\": 6, \"degree_in_sign\": 25.3956, \"formatted\": \"25°23' Virgo\"}, {\"name\": \"venus\", \"longitude\": 208.418004, \"speed\": 0.696534, \"retrograde\": false, \"sign\": \"Libra\", \"sign_index\": 7, \"degree_in_sign\": 28.418, \"formatted\": \"28°25' Libra\"}, {\"name\": \"mars\", \"longitude\": 107.797681, \"speed\": 0.623797, \"retrograde\": false, \"sign\": \"Cancer\", \"sign_index\": 4, \"degree_in_sign\": 17.7977, \"formatted\": \"17°47' Cancer\"}, {\"name\": \"jupiter\", \"longitude\": 135.152632, \"speed\": 0.20484, \"retrograde\": false, \"sign\": \"Leo\", \"sign_index\": 5, \"degree_in_sign\": 15.1526, \"formatted\": \"15°09' Leo\"}, {\"name\": \"saturn\", \"longitude\": 13.258167, \"speed\": -0.064269, \"retrograde\": true, \"sign\": \"Aries\", \"sign_index\": 1, \"degree_in_sign\": 13.2582, \"formatted\": \"13°15' Aries\"}, {\"name\": \"uranus\", \"longitude\": 65.693639, \"speed\": 0.002417, \"retrograde\": false, \"sign\": \"Gemini\", \"sign_index\": 3, \"degree_in_sign\": 5.6936, \"formatted\": \"5°41' Gemini\"}, {\"name\": \"neptune\", \"longitude\": 3.489534, \"speed\": -0.025984, \"retrograde\": true, \"sign\": \"Aries\", \"sign_index\": 1, \"degree_in_sign\": 3.4895, \"formatted\": \"3°29' Aries\"}, {\"name\": \"pluto\", \"longitude\": 303.392089, \"speed\": -0.016015, \"retrograde\": true, \"sign\": \"Aquarius\", \"sign_index\": 11, \"degree_in_sign\": 3.3921, \"formatted\": \"3°23' Aquarius\"}, {\"name\": \"north_node\", \"longitude\": 329.807661, \"spee"
}

Captured from a real call using the exact request above. Results sit under data.

Errors

Metering errors return { "error": "…", "message": "<code>", "is_error": true }. Show error to people and branch on message. See the error reference.