Japan Keiretsu Intelligence MCP — AI skill for Claude Code

Japan Business Intelligence Suite: The Kokai Data Fusion Engine for Corporate & Grant Intelligence

[](https://ganiez.github.io/japan-keiretsu-intelligence-mcp/)

**An AI-native, citable Japanese public business intelligence system combining three government authority chains into a single Claude plugin, MCP server, and responsive web dashboard.** Built for financial analysts, due diligence teams, and AI researchers who need verifiable Japanese company data without the overhead of manual scraping.

---

📥 Download & Installation

[](https://ganiez.github.io/japan-keiretsu-intelligence-mcp/)

# Clone the repository
git clone https://ganiez.github.io/japan-keiretsu-intelligence-mcp/
cd japan-business-intelligence

# Install dependencies (Python 3.11+ recommended)
pip install -r requirements.txt

# Configure your API keys (see Configuration section)
cp .env.example .env

---

🪪 Overview: Why This Exists

Japan's public business data is fragmented across three incompatible government databases, each with its own API, authentication, and data quality issues. The **Japan Business Intelligence Suite** solves this by creating an **Authority Chain** that cross-references records from:

1. gBizINFO (経済産業省) — Corporate registry, financial statements, and subsidiary data
2. J-Grants (内閣府) — Government grant and subsidy recipients
3. 国税庁 法人番号 — Tax office corporate number database

This triangulation creates an **auditable, AI-citable source of truth** for Japanese company intelligence — meaning an AI assistant (Claude, GPT-4) can reference the original government source for every fact it outputs.

---

✨ Key Features

Core Intelligence Engine

• 3-Source Authority Chain: Every company profile is verified against all three government dat