---
title: "Sacred Letter Numerology (Gematria · Isopsephy · Abjad) (聖字母數秘（希伯來/希臘/阿拉伯）)"
method: GET
path: "/api/trpc/gematria.calculate"
tags: ["Kabbalistic"]
---

# Sacred Letter Numerology (Gematria · Isopsephy · Abjad) (聖字母數秘（希伯來/希臘/阿拉伯）)

`GET /api/trpc/gematria.calculate`

## Request

- Base URL: `https://api.asktian.com`
- URL: `https://api.asktian.com/api/trpc/gematria.calculate`
- Auth: HTTP bearer

Sacred Letter Numerology — the three great alphabetic-numerology systems, where every letter carries a number and a word's value is the sum of its letters. HEBREW GEMATRIA (גימטריא) with all the classical methods: Mispar Hechrachi (standard), Mispar Gadol (finals 500–900), Mispar Katan (reduced to 1–9), Mispar Siduri (ordinal 1–22) and the Atbash cipher; GREEK ISOPSEPHY (ἰσοψηφία): α=1 … ω=800 with the archaic numeral letters ϛ(6)/ϟ(90)/ϡ(900); ARABIC ABJAD (حساب الجمل): the Eastern/Mashriqi order ا=1 … غ=1000. From a word or phrase (native script — auto-detected — or romanized Hebrew) it returns the per-letter breakdown, the value by every method, the 1–9 root digit, and curated famous words that share the same value (the classical technique — אהבה “love” and אחד “one” both total 13). The letter values are fixed, so the arithmetic is exact and famous totals verify (חי=18, יהוה=26, Ἰησοῦς=888, الله=66); the interpretive linking of equal-value words is a traditional hermeneutic, not a validated predictor.

Cost: 2 TIAN Points per call. tRPC procedure `gematria.calculate`.

## 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).

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[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)