---
title: "Cardology Birth Card (命運撲克牌)"
method: GET
path: "/api/trpc/cardology.birthCard"
tags: ["Western"]
---

# Cardology Birth Card (命運撲克牌)

`GET /api/trpc/cardology.birthCard`

## Request

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

The playing-card birthday system: 55 − (2·month + day) on the Hearts-to-Spades deck, the lineage's own worked examples reproduced, the single-birthday cards and Joker uniqueness proven as theorems, fixed and semi-fixed card facts served — with the spread layer deferred until the 1893 primary source settles the quadration.

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

## 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)