Cyclic Index

POST

/api/v1/cyclic-index

• Production

Calculate the André Barbault Cyclic Index — sum of all outer planet separations — for a date range to indicate global crisis periods.

Authorizations

• ApiKeyAuth

Request Body ^required

object

Example

{
  "startDate": "2020-01-01",
  "endDate": "2025-12-31",
  "stepDays": 30
}

Responses

200

Successful calculation

object

ok

boolean

Example

true

data

object

400

Validation error

Example

{
  "ok": false,
  "error": {
    "code": "INVALID_INPUT",
    "message": "Validation failed: date: Date must be YYYY-MM-DD",
    "details": [
      {
        "path": "date",
        "message": "Date must be YYYY-MM-DD"
      }
    ]
  }
}

401

Missing or invalid API key

Example

{
  "ok": false,
  "error": {
    "code": "INVALID_API_KEY",
    "message": "Invalid API key"
  }
}