Transit Charts

GET`/api/transits/chart`Pro

Get full Human Design chart snapshots for each time point in a date range. Each chart includes type, authority, channels, centers, Variable, PHS, and Rave Psychology.

Legacy URL supported

The previous endpoint path /api/v2/transit-chart is still supported and will continue to work.

No birth data required

Transit charts are calculated from planetary positions alone — no birth location is needed. These charts show the cosmic weather at each moment.

Request

Parameters

Parameter	Type	Required	Description
`startDate`	string	Yes	Start date (YYYY-MM-DD or YYYY-MM-DDTHH:MM:SS)
`endDate`	string	Yes	End date (YYYY-MM-DD or YYYY-MM-DDTHH:MM:SS)
`granularity`	string	No	"daily", "hourly" (default), or "minute" (default: `hourly`)

thd-api

Response

Each item in the data array is a full HD chart for that moment:

Response200

{
"success": true,
"meta": {
  "version": "2.0.0",
  "endpoint": "v2/transit-chart",
  "startDate": "2026-03-15",
  "endDate": "2026-03-16",
  "granularity": "hourly",
  "count": 24,
  "computeTimeMs": 1250
},
"data": [
  {
    "datetime": "2026-03-15T00:00:00.000Z",
    "chart": {
      "type": "Generator",
      "authority": "Sacral",
      "profile": "1/3",
      "definition": "Single",
      "variableType": {
        "motivation": "Fear",
        "environment": "Caves",
        "digestion": "Consecutive",
        "perspective": "Survival"
      }
    },
    "centers": {
      "defined": [
        { "center": "Sacral", "gates": [5, 14], "channels": ["5-15"] }
      ],
      "open": ["Head", "Ajna", "Throat"]
    },
    "channels": [
      { "gates": "5→15", "centers": ["Sacral", "G"] }
    ],
    "planets": {
      "Sun": {
        "longitude": 354.2,
        "gate": 36,
        "line": 1,
        "color": 3,
        "tone": 2,
        "base": 1,
        "sign": "Pisces",
        "isRetrograde": false
      }
    },
    "phs": { "conditioning": ["..."], "open": ["..."] },
    "ravePsychology": { "purpose": ["..."], "direction": ["..."] }
  }
]
}

Chart fields per time point

Field	Description
`chart`	Type, authority, profile, definition, and Variable breakdown
`centers`	Defined centers (with their gates and channels) and open centers
`channels`	Active channels with gate pairs and connected centers
`planets`	All 13 HD planets with full gate/line/color/tone/base data
`phs`	PHS conditioning and open planets
`ravePsychology`	Rave Psychology categories (purpose, direction, transference, transformation, cognition)

Unit consumption

Granularity	Units per Day	Max Range
`daily`	1	366 days
`hourly`	24	366 days
`minute`	1,440	30 days