# yamariki-hub/japan-corporate-mcp [Health: Active]

**Category:** 💰 Finance & Fintech  
**Repository:** https://github.com/yamariki-hub/japan-corporate-mcp  
**GitHub Stars:** 1  
**Views:** 3  
**Installs:** 0  
**Upvotes:** 0  
**Directory Page:** https://allmcps.com/mcp/yamariki-hub-japan-corporate-mcp

## Description
Japanese corporate data via government APIs (gBizINFO, EDINET, e-Stat). Search companies, financials, patents, subsidies, procurement, and government statistics.

## Claude Desktop Quick Installation
Install path detected from listing signals. Uses `uvx` (confidence: high):

```json
"mcpServers": {
  "japan-corporate-mcp": {
    "command": "uvx",
    "args": ["japan-corporate-mcp"],
    "env": {
      "GBIZINFO_API_TOKEN": "",
      "EDINET_SUBSCRIPTION_KEY": "",
      "ESTAT_APP_ID": ""
    }
  }
}
```

**Requires environment variables:** `GBIZINFO_API_TOKEN`, `EDINET_SUBSCRIPTION_KEY`, `ESTAT_APP_ID` — the values above are empty placeholders; fill in real credentials before running (see the repository for what each one is for).

## Documentation

## What the yamariki-hub/japan-corporate-mcp MCP server does

The yamariki-hub/japan-corporate-mcp MCP server connects AI assistants to Japanese government data services. It supports company searches and company-level lookups through gBizINFO, including basic details, financial figures, patents, subsidies, and government procurement records. EDINET tools provide access to securities reports, while e-Stat supports searches for government statistics.

The available data is organized around eight tools:

- `search_company` finds companies by name through gBizINFO.
- `get_company_info` retrieves details such as address, capital, and employee counts.
- `get_company_finance` returns financial values including revenue, profit, and assets.
- `get_company_patents` searches patent information.
- `get_company_subsidies` retrieves subsidies and grants received.
- `get_company_procurement` looks up government procurement records.
- `get_edinet_reports` searches securities reports from EDINET.
- `get_statistics` searches government statistics through e-Stat.

## How it works

The server is intended to run as a local MCP process. An MCP-compatible client starts the `japan-corporate-mcp` command and passes credentials through environment variables. Tool requests are then routed to the corresponding government API: gBizINFO for most corporate records, EDINET for securities reports, and e-Stat for statistical data.

At minimum, company search and company-information tools require a gBizINFO API token. EDINET requests use an EDINET subscription key, and e-Stat requests use an e-Stat application ID. These credentials come from registrations with the respective government services.

## Setup and configuration

Install the package with `pip install japan-corporate-mcp`, then register for the APIs required by the tools you plan to use. The README identifies web registration for gBizINFO and e-Stat, and web registration with MFA for EDINET.

Configure the process in an MCP client using these variables:

- `GBIZINFO_API_TOKEN` for gBizINFO access.
- `EDINET_SUBSCRIPTION_KEY` for EDINET tools.
- `ESTAT_APP_ID` for e-Stat tools.

The documented client examples cover Claude Desktop and Cursor. Both launch `japan-corporate-mcp` directly and supply the credentials in the client configuration. Claude Code is also shown with an `claude mcp add` command.

## Tools and capabilities

The yamariki-hub/japan-corporate-mcp MCP server is suited to research workflows that need more than a company name lookup. An assistant can combine company identification with corporate attributes, financial data, patents, subsidies, and procurement records. Separate EDINET and e-Stat tools extend the workflow to regulatory filings and broader government statistics.

Example tasks supported by the documented tools include finding companies in a Japanese region or sector, checking Toyota patent information, retrieving Sony Group company details, searching SoftBank EDINET reports, and locating statistics about Japanese manufacturing.

## Limitations and notes

Each data source has its own credential requirement and coverage. A gBizINFO token is required for the core company tools; EDINET and e-Stat credentials are needed for their respective tool groups. The provided material does not specify rate limits, response formats, historical coverage, or whether every tool requires a credential before invocation. The yamariki-hub/japan-corporate-mcp MCP server should therefore be evaluated against the particular government datasets and research scope required by an application.

_Full upstream README: https://allmcps.com/mcp/yamariki-hub-japan-corporate-mcp/readme_