POST/api/astro/human-design/connection/1 credit

Connection chart

How two bodygraphs wire together. Every channel in the combined chart falls into exactly one of four kinds, decided purely by who holds which gate. Electromagnetic: each person holds one end, so the channel exists only between them. Companionship: both hold both ends, and the meeting adds nothing. Dominance: one holds both ends and the other holds neither. Compromise: one holds both ends and the other holds one of them. Also returns the centres the pair define together that neither defines alone — what actually changes when they are in the same room — along with the combined type and definition, and a short summary of each person's own chart. Send the second person as partner_date_time and partner_timezone_as_float. Birthplaces are not needed for either person, for the same reason as the other Human Design endpoints.

https://yogataraapi.prahlad.app/api/astro/human-design/connection/

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.
partner_date_time	string (date-time)	required
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.
partner_timezone_as_float	number (double)	optional	min -12 · max 14

Example request

curl -X POST https://yogataraapi.prahlad.app/api/astro/human-design/connection/ \
  -H "X-API-Key: $OCCULT_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"date_time":"2026-09-01 06:00:00","partner_date_time":"2026-09-01 06:00:00","timezone_as_float":5.5,"latitude":26.9124,"longitude":75.7873}'

Response

{
  "data": {
    "person_a": {
      "type": "Generator",
      "strategy": "To respond",
      "authority": "Emotional",
      "profile": "4/6",
      "definition": "Split Definition"
    },
    "person_b": {
      "type": "Generator",
      "strategy": "To respond",
      "authority": "Emotional",
      "profile": "4/6",
      "definition": "Split Definition"
    },
    "connection": {
      "electromagnetic": [],
      "companionship": [
        {
          "channel": "17-62",
          "name": "Acceptance",
          "gates": [
            17,
            62
          ]
        },
        {
          "channel": "30-41",
          "name": "Recognition",
          "gates": [
            30,
            41
          ]
        },
        {
          "channel": "37-40",
          "name": "Community",
          "gates": [
            37,
            40
          ]
        },
        {
          "channel": "39-55",
          "name": "Emoting",
          "gates": [
            39,
            55
          ]
        },
        {
          "channel": "42-53",
          "name": "Maturation",
          "gates": [
            42,
            53
          ]
        }
      ],
      "dominance": [],
      "compromise": []
    },
    "counts": {
      "electromagnetic": 0,
      "companionship": 5,
      "dominance": 0,
      "compromise": 0
    },
    "combined_defined_centres": [
      "ajna",
      "root",
      "sacral",
      "solar_plexus",
      "throat",
      "will"
    ],
    "centres_defined_only_together": [],
    "combined_type": "Generator",
    "combined_definition": "Split Definition"
  },
  "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.