How much does Saju Insights cost?

Saju Insights uses a free pricing model.

What are the main advantages of Saju Insights?

Native MCP support allows for seamless integration with AI agents like Claude Desktop and Cursor.. High precision including automatic True Solar Time (-30min) corrections for accurate charts.. Comprehensive feature set covering Yongshin (useful elements), Daewun (10-year cycles), and 15 different 'Sinsal' (gods and killers).. Open-source and free, offering transparency in the underlying calculation logic compared to 'black-box' commercial apps..

What are the drawbacks of Saju Insights?

Lacks a user-friendly graphical interface, making it inaccessible to non-technical users.. Requires manual installation via terminal (Node.js/npm) and configuration of JSON files.. Limited community-driven interpretations; primarily provides raw data that still requires an LLM or expert to translate into life advice.. No native integration with common automation platforms like Zapier or Make.com..

Saju Insights

Unverified verified 13 jun 2026

Pricing: Free Last verified: 2026-06-13

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Updated May 27, 2026

TL;DR

Saju Insights is an open-source Model Context Protocol (MCP) server that enables AI agents to perform complex Korean Four Pillars of Destiny (Saju) calculations. It serves as a specialized bridge for LLMs, providing accurate birth charts, 10-year luck cycles, and relationship compatibility data that standard AI models cannot calculate natively.

What Users Actually Pay

No user-reported pricing yet.

Our Take

Saju Insights occupies a unique niche at the intersection of traditional East Asian metaphysics and modern AI infrastructure. Unlike consumer-facing fortune-telling apps that focus on UI/UX, this product is designed as a 'backend for brains,' specifically targeting developers and power users who use AI assistants like Claude or Cursor. By standardizing Saju logic into the Model Context Protocol, it eliminates the common 'hallucinations' LLMs suffer from when trying to calculate lunar-to-solar calendar conversions or complex elemental balances. The project's greatest strength is its technical rigor, including features like True Solar Time (Jintaeyangsi) correction—a detail often missed by simplified web calculators. However, its market position is strictly technical; it is not a standalone app for casual users, but a building block for those creating AI-driven spiritual or psychological tools. While highly effective for its intended purpose, its limitations include a lack of a hosted API and a heavy reliance on the user's ability to run a local Node.js environment. It is best suited for AI enthusiasts, developers building spiritual tech, or 'prompt engineers' who want to integrate traditional Korean wisdom into their autonomous agent workflows.

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Pros

+ Native MCP support allows for seamless integration with AI agents like Claude Desktop and Cursor.
+ High precision including automatic True Solar Time (-30min) corrections for accurate charts.
+ Comprehensive feature set covering Yongshin (useful elements), Daewun (10-year cycles), and 15 different 'Sinsal' (gods and killers).
+ Open-source and free, offering transparency in the underlying calculation logic compared to 'black-box' commercial apps.

Cons

- Lacks a user-friendly graphical interface, making it inaccessible to non-technical users.
- Requires manual installation via terminal (Node.js/npm) and configuration of JSON files.
- Limited community-driven interpretations; primarily provides raw data that still requires an LLM or expert to translate into life advice.
- No native integration with common automation platforms like Zapier or Make.com.

Sentiment Analysis

+0.85 — Very PositiveUpdated May 12, 2026

Sentiment has improved since last capture. Sentiment is overwhelmingly positive among the developer and AI community, where it is viewed as a high-utility tool for solving specific calculation errors in LLMs. Unlike general astrology apps that face scrutiny for 'woo-woo' logic, this tool is praised for its technical implementation of the Model Context Protocol.

Sentiment Over Time

By Source

Reddit+0.80

5 mentions

Sample quotes (2)

"I built it because I wanted to see how well LLMs could interpret a properly formatted chart — turns out, pretty well, if you give them accurate input."
"It's an Asian equivalent of astrology... You can get chatgpt to interpret it for you if you have the right data."

github+0.90

12 mentions

Sample quotes (1)

"A Model Context Protocol (MCP) server for Korean traditional Saju. Includes birth chart calculation, fortune analysis, and compatibility."

Agent Readiness

50/100

Saju Insights is 'Agent-First' by design, utilizing the Model Context Protocol (MCP) to provide 7 optimized tools for AI consumption. While it lacks traditional REST/SaaS integrations like Zapier, it is one of the most 'ready' tools for direct autonomous agent interaction within the Claude/Cursor ecosystem, offering structured JSON outputs for complex cultural data.

API Surface100

Public APIMCP (JSON-RPC over stdio/SSE)Free TieropenApi

Protocol Support40

MCP (7 tools)

SDK Availability0

Integration Ecosystem0

Claude DesktopCursorAny MCP-compliant host

Developer Experience65

Docs: excellentVersioningChangelog

Last checked May 12, 2026

MCP Integrations

1 server7 tools5,383 total uses

Saju Insightshjsh200219/fortuneteller

smitheryRemoteHigh match

Discover personalized Four Pillars (Saju) readings, from daily to yearly fortunes and 10-year luck cycles, based on your birth data. Check relationship compatibility and receive Yongshin-driven guidance with practical tips on colors, directions, and careers. Convert between lunar and solar calendars and tailor interpretations across different schools.

5,383 uses

7 tools