Transit charts

GET/api/transits/chartPro

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

No birth data required

Transit charts are calculated from planetary positions. No birth location is required.

Request

Parameters

startDate reqstringStart date (YYYY-MM-DD or YYYY-MM-DDTHH:MM:SS)

endDate reqstringEnd date (YYYY-MM-DD or YYYY-MM-DDTHH:MM:SS)

granularity string"daily", "hourly" (default), or "minute" (default: hourly)

thd-api

Response

Each item in the data array is a Human Design chart for that moment:

✓ doneapplication/json

{
"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)

Chart requests

Granularity	Chart requests per day	Max Range
`daily`	1	366 days
`hourly`	3	366 days
`minute`	10	30 days