/api/astro/human-design/chart/1 creditHuman Design bodygraph
The complete Human Design bodygraph, computed from the ephemeris. Human Design reads planetary longitudes against a fixed 64-gate wheel derived from the I Ching, twice over. The personality layer is the moment of birth. The design layer is the moment roughly three months earlier when the Sun stood exactly 88 degrees back along the ecliptic — not 88 days: the Earth's orbit is eccentric, so the gap runs from about 86 to 92 days depending on the time of year, and this endpoint solves for the true moment. Returns thirteen activations for each layer (the ten planets plus Earth, and both lunar nodes), each with its gate, line, gate name and centre. From the union of those gates it reports every one of the 36 channels that is complete, naming which layer supplied each end; all nine centres flagged defined or open; and the type, strategy, inner authority, profile, definition and incarnation cross that follow. Every value is a lookup or a graph traversal, so the same birth moment always returns the same chart. What it deliberately does not include is what any of it means — that is authored interpretation, not something an ephemeris can produce. latitude and longitude are optional. A bodygraph uses no houses and no angles, so the birthplace never enters the calculation: two people born at the same instant anywhere on Earth have identical charts. Implementations that demand a birthplace imply otherwise.
https://yogataraapi.prahlad.app/api/astro/human-design/chart/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/chart/ \
-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
{
"_truncated": true,
"_note": "Response shortened for the catalogue.",
"preview": "{\"data\": {\"birth_datetime_utc\": \"2026-09-01T00:30:00.000Z\", \"design_datetime_utc\": \"2026-06-01T01:52:50.642Z\", \"design_solar_arc_degrees\": 88.0, \"days_between\": 91.942469, \"design\": [{\"body\": \"sun\", \"longitude\": 70.613407, \"gate\": 16, \"line\": 6, \"gate_name\": \"Skills\", \"centre\": \"throat\", \"percent_through_gate\": 86.4606}, {\"body\": \"earth\", \"longitude\": 250.613407, \"gate\": 9, \"line\": 6, \"gate_name\": \"Focus\", \"centre\": \"sacral\", \"percent_through_gate\": 86.4606}, {\"body\": \"north_node\", \"longitude\": 334.170857, \"gate\": 55, \"line\": 5, \"gate_name\": \"Spirit\", \"centre\": \"solar_plexus\", \"percent_through_gate\": 71.9264}, {\"body\": \"south_node\", \"longitude\": 154.170857, \"gate\": 59, \"line\": 5, \"gate_name\": \"Sexuality\", \"centre\": \"sacral\", \"percent_through_gate\": 71.9264}, {\"body\": \"moon\", \"longitude\": 258.409187, \"gate\": 26, \"line\": 2, \"gate_name\": \"The Egoist\", \"centre\": \"will\", \"percent_through_gate\": 25.0522}, {\"body\": \"mercury\", \"longitude\": 89.285947, \"gate\": 15, \"line\": 2, \"gate_name\": \"Extremes\", \"centre\": \"identity\", \"percent_through_gate\": 18.4168}, {\"body\": \"venus\", \"longitude\": 105.487784, \"gate\": 53, \"line\": 1, \"gate_name\": \"Beginnings\", \"centre\": \"root\", \"percent_through_gate\": 6.4495}, {\"body\": \"mars\", \"longitude\": 39.817815, \"gate\": 24, \"line\": 3, \"gate_name\": \"Rationalizing\", \"centre\": \"ajna\", \"percent_through_gate\": 38.9834}, {\"body\": \"jupiter\", \"longitude\": 114.082386, \"gate\": 62, \"line\": 4, \"gate_name\": \"Detail\", \"centre\": \"throat\", \"percent_through_gate\": 59.2424}, {\"body\": \"saturn\", \"longitude\": 12.251159, \"gate\": 21, \"line\": 3, \"gate_name\": \"The Hunter\", \"centre\": \"will\", \"percent_through_gate\": 48.9095}, {\"body\": \"uranus\", \"longitude\": 62.068489, \"gate\": 20, \"line\": 3, \"gate_name\": \"The Now\", \"centre\": \"throat\", \"percent_through_gate\": 34.5509}, {\"body\": \"neptune\", \"longitude\": 4.062081, \"gate\": 17, \"line\": 1, \"gate_name\": \"Opinions\", \"centre\": \"ajna\", \"percent_through_gate\": 3.3259}, {\"body\": \"pluto\", \"longitude\": 305.363473, \"gate\": 41, \"line\": 4, \"gate_name\": \"Contraction\", \"centre\": \"root\", \"percent_through_gate\": 59.7951}], \"personality\": [{\"body\": \"sun\", \"longitude\": 158.613407, \"gate\": 40, \"line\": 4, \"gate_name\": \"Aloneness\", \"centre\": \"will\", \"percent_through_gate\": 50.905}, {\"body\": \"earth\", \"longitude\": 338.613407, \"gate\": 37, \"line\": 4, \"gate_name\": \"Friendship\", \"centre\": \"solar_plexus\", \"percent_through_gate\": 50.905}, {\"body\": \"north_node\", \"longitude\": 329.30287, \"gate\": 30, \"line\": 6, \"gate_name\": \"Recognition of Feelings\", \"centre\": \"solar_plexus\", \"percent_through_gate\": 85.3843}, {\"body\": \"south_node\", \"longitude\": 149.30287, \"gate\": 29, \"line\": 6, \"gate_name\": \"Perseverance\", \"centre\": \"sacral\", \"percent_through_gate\": 85.3843}, {\"body\": \"moon\", \"longitude\": 25.710149, \"gate\": 42, \"line\": 6, \"gate_name\": \"Growth\", \"centre\": \"sacral\", \"percent_through_gate\": 88.1804}, {\"body\": \"mercury\", \"longitude\": 162.740574, \"gate\": 64, \"line\": 2, \"gate_name\": \"Confusion\", \"centre\": \"head\", \"percent_through_gate\": 24.2769}, {\"body\": \"venus\", \"longitude\": 203.188417, \"gate\": 32, \"line\": 3, \"gate_name\": \"Continuity\", \"centre\": \"spleen\", \"percent_through_gate\": 43.3496}, {\"body\": \"mars\", \"longitude\": 103.406817, \"gate\": 39, \"line\": 5, \"gate_name\": \"Provocation\", \"centre\": \"root\", \"percent_through_gate\": 69.4545}, {\"body\": \"jupiter\", \"longitude\": 133.704048, \"gate\": 7, \"line\": 1, \"gate_name\": \"The Role of the Self\", \"centre\": \"identity\", \"percent_through_gate\": 8.072}, {\"body\": \"saturn\", \"longitude\": 13.679498, \"gate\": 21, \"line\": 5, \"gate_name\": \"The Hunter\", \"centre\": \"will\", \"percent_through_gate\": 74.3022}, {\"body\": \"uranus\", \"longitude\": 65.655978, \"gate\": 20, \"line\": 6, \"gate_name\": \"The Now\", \"centre\": \"throat\", \"percent_through_gate\": 98.3285}, {\"body\": \"neptune\", \"longitude\": 3.665567, \"gate\": 25, \"line\": 6, \"gate_name\": \"The Spirit of the Self\", \"centre\": \"identity\", \"percent_through_gate\": 96.2767}, {\"body\": \"pluto\", \"longitude\": 303.511485, \"gate\": 41, \"line\": 2, \"gate_name\": \"Contraction\", \"centre\": \"ro"
}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.