/api/astro/human-design/properties/1 creditType, strategy and authority
The summary line of a bodygraph: type, strategy, inner authority, profile, definition, signature, not-self theme and incarnation cross, plus which centres and channels are defined. The same computation as the full bodygraph with the three long arrays left out — the 26 activations, the per-channel detail and the per-gate detail. Those are most of the response by size and none of it by the time you are rendering ‘you are a Projector with Splenic authority’, which is the first thing almost every Human Design product shows. Roughly a tenth the size of /chart/ for the same credit. Use /chart/ when you are drawing the bodygraph itself and need the gate positions.
https://yogataraapi.prahlad.app/api/astro/human-design/properties/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/jsonRequest 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. |
| 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 |
| 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. |
| 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. |
| 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. |
Example request
curl -X POST https://yogataraapi.prahlad.app/api/astro/human-design/properties/ \
-H "X-API-Key: $OCCULT_API_KEY" \
-H "Content-Type: application/json" \
-d '{"date_time":"2026-09-01 06:00:00","timezone_as_float":5.5,"latitude":26.9124,"longitude":75.7873}'Response
{
"data": {
"birth_datetime_utc": "2026-09-01T00:30:00.000Z",
"design_datetime_utc": "2026-06-01T01:52:50.642Z",
"design_solar_arc_degrees": 88,
"days_between": 91.942469,
"type": "Generator",
"strategy": "To respond",
"authority": "Emotional",
"profile": "4/6",
"definition": "Split Definition",
"signature": "Satisfaction",
"not_self_theme": "Frustration",
"incarnation_cross": {
"angle": "Right Angle",
"gates": {
"personality_sun": 40,
"personality_earth": 37,
"design_sun": 16,
"design_earth": 9
},
"notation": "(40/37 | 16/9)"
},
"gates": [
7,
9,
15,
16,
17,
20,
21,
24,
25,
26,
29,
30,
32,
37,
39,
40,
41,
42,
53,
55,
59,
62,
64
],
"defined_centres": [
"ajna",
"throat",
"will",
"sacral",
"solar_plexus",
"root"
],
"open_centres": [
"head",
"identity",
"spleen"
],
"defined_channels": [
"17-62",
"30-41",
"37-40",
"39-55",
"42-53"
]
},
"status": 200,
"is_error": false,
"message": "successful"
}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.