---
title: "Cardology Spreads (1893 Quadration) (命運牌陣)"
method: GET
path: "/api/trpc/cardology.spreads"
tags: ["Western"]
---

# Cardology Spreads (1893 Quadration) (命運牌陣)

`GET /api/trpc/cardology.spreads`

## Request

- Base URL: `https://api.asktian.com`
- URL: `https://api.asktian.com/api/trpc/cardology.spreads`
- Auth: HTTP bearer

Richmond's 1893 quadration recovered from the primary source and proven three ways — his own period-90 law, the modern Life Spread anchors as the unique solution, and a 52-for-52 match to the published karma chart — with the fixed cards, semi-fixed pairs and the '90 spreads' all derived as one permutation's cycle type.

Cost: 2 TIAN Points per call. tRPC procedure `cardology.spreads`.

## Query parameters

- `input` string

## Response `200`

tRPC result envelope

- TrpcResult: tRPC HTTP response envelope.
  - `result` object
    - `data` object: The procedure's return value (system-specific).

---

[API](https://skmtc.dev/asktian/apis/asktian-metaphysics-api.md) · [All operations](https://skmtc.dev/asktian/apis/asktian-metaphysics-api/llms.txt) · [OpenAPI document](https://skmtc.dev/asktian/apis/asktian-metaphysics-api/revisions/3c8fdc979206?raw)