Connect gBizINFO to Claude Code
Query gBizINFO directly from Claude Code. Arlet links the two through one MCP connection and takes care of API keys.
This server connects your AI client to the gBizINFO REST API operated by Japan's Ministry of Economy, Trade and Industry. gBizINFO aggregates government-held information about companies - keyed by the 13-digit corporate number - into a single database.
Key features:
- Search companies by name, corporate number, prefecture, capital, or headcount.
- Fetch a company's basic profile: registered name, address, representative, capital, employees, business summary, and website.
- Fetch per-company records by category: subsidies received, public procurement contracts, certifications and notifications, commendations, financial statements, patents, and workplace data.
Because everything is keyed by corporate number, gBizINFO pairs naturally with the Corporate Number System API (find the number first) and EDINET (deep-dive into listed companies' filings).
Using the API requires a free API token issued via the gBizINFO Web API application form. Set it as GBIZINFO_API_TOKEN in your Arlet environment variables.
How to connect gBizINFO to Claude Code
- 1
In the Arlet dashboard, open Data tools, find gBizINFO, set the API key issued by gBizINFO and switch it on.
- 2
In your terminal, run claude mcp add --transport http arlet https://mcp.arlet.dev/mcp/ to add Arlet as an MCP server.
- 3
Start Claude Code, run /mcp, select arlet and click Authenticate.
- 4
Your browser opens. Sign in with Google and click Allow on the consent screen. The connection is complete.
The connection is per user and works across every project on the same machine.