jp-corporate
MCP serverEverything elseJapanese corporate number lookup using official National Tax Agency public data.
Available today. Use it from your connected AI after setup.
No other account needed.
Connect ahel once, and every AI you use reads what you have installed.
Then ask your AI: use jp-corporate
Install jp-corporate
The server’s own address, for the clients that take one directly. Or connect ahel onceand every client you use reads it from one address, with the account kept on ahel rather than in each client’s config.
Claude Code
claude mcp add --transport http jp-corporate 'https://jp-corporate.plugrail.dev/mcp'Run it once in your project, then open /mcp to approve any sign-in the server asks for.
Claude Desktop
https://jp-corporate.plugrail.dev/mcpAdd a custom connector in Settings, paste this address, and approve the sign-in.
Cursor
cursor://anysphere.cursor-deeplink/mcp/install?name=jp-corporate&config=eyJ1cmwiOiJodHRwczovL2pwLWNvcnBvcmF0ZS5wbHVncmFpbC5kZXYvbWNwIn0=Open the link and Cursor adds the server at that address.
ChatGPT
https://jp-corporate.plugrail.dev/mcpIn Settings, enable Developer mode, create an MCP app, and paste this address. Your plan and workspace must allow custom apps.
Codex
codex mcp add jp-corporate --url 'https://jp-corporate.plugrail.dev/mcp'Run it once, then sign in with codex mcp login jp-corporate if the server asks for an account.
From the project's README
As published by plugrail/servers in README.md. This repository publishes several servers, so only the opening is shown here.
A collection of MCP servers that connect to Japanese public data. The name alone does not describe the project, so plugrail is not related to railways or railway services.
Live servers
| Server | MCP endpoint | Tools | Status |
|---|---|---|---|
| jp-calendar | https://jp-calendar.plugrail.dev/mcp | is_holiday, list_holidays, business_days_between, add_business_days | Live |
Connect
See the jp-calendar connection guide.
Self-hosting
- In
packages/servers/jp-calendar/, copywrangler.example.jsonctowrangler.jsoncand fill in your Cloudflare resource IDs. - Create the D1 database and KV namespace referenced by that configuration.
- Run
pnpm --filter @plugrail/jp-calendar deploy.
The self-hosted server runs independently. Authentication, rate limiting, and usage metering are features of the hosted service only.
Architecture
Shortened here. Read the whole README on GitHub.
Advanced
- Delivery
- jp-corporate MCP server → your ahel gateway (mcp.ahel.ai) → every connected AI client.
- Catalog kind
- mcp-server
- Gateway key
dev-plugrail-jp-corporate- Source
- github.com/plugrail/servers
- Hosted endpoint
https://jp-corporate.plugrail.dev/mcp