Japanese corporate number lookup using official National Tax Agency public data. Connect the official PlugRail Corporate Number MCP server to Claude, ChatGPT, or Cursor through gate — one gateway URL, no config files, security-checked.
Free to start · No credit card · No hosting needed
Pick your client. Copy, paste, done — or let gate handle sign-ins and policies for you.
claude mcp add --transport http plugrail-corporate-number https://jp-corporate.plugrail.dev/mcpRun in your terminal, then restart Claude Code.
PlugRail Corporate Number · https://jp-corporate.plugrail.dev/mcp
Real prompts you can type the moment it's connected — no setup, no docs to read.
“Use “search_corporate_by_number”: 法人番号(13桁)で日本の法人を1件検索します。国税庁公開データに基づきます。入力例: {"corporateNumber": "8000000000001"}.”
“Use “search_corporate_by_name”: 都道府県+法人名の接頭辞で日本の法人を検索します。国税庁公開データに基づきます。入力例: {"prefecture": "13", "prefix": "渋谷", "limit": 10}.”
“Use “search_corporate_by_address”: 都道府県+所在地の接頭辞で日本の法人を検索します。国税庁公開データに基づきます。入力例: {"prefecture": "13", "prefix": "渋谷", "limit": 10}.”
“Use “lookup_corporate”: 法人番号の確定照会と名称・所在地の候補探索を分離して返す。名称だけでは断定せず複数候補と根拠別scoreを返す。番号確定例: {"corporateNumber": "8000000000001"}/候補例: {"name": "渋谷", "prefecture": "13",.”
Every server in the gate directory has to pass the same four checks before your AI can touch it. Here's how PlugRail Corporate Number holds up.
gate scanned 6 tools on Sep 27, 2026 for prompt injection and risky tool definitions — nothing to flag.
Operated by PlugRail Corporate Number (plugrail.dev) at its documented MCP endpoint — not a third-party mirror or community re-host.
This server only exposes public data — no account and no credentials are involved when you connect.
gate checks every tool for prompt injection, hidden instructions, data-exfiltration hints, and over-broad permissions before the server is available through your gateway.
If PlugRail Corporate Number adds or changes tools later, gate re-scans and alerts you — before your AI acts on the change.
Add one gateway URL to Claude, ChatGPT, or any MCP client. One-time setup, about two minutes.
Choose PlugRail Corporate Number in the gate directory. No sign-in needed.
PlugRail Corporate Number's tools are live in every AI client you've connected — with rules and logging built in.
Free to start · No credit card · No hosting needed
Fetched live from the official endpoint and re-checked daily by gate — not marketing copy.
search_corporate_by_number — 法人番号(13桁)で日本の法人を1件検索します。国税庁公開データに基づきます。入力例: {"corporateNumber": "8000000000001"}
search_corporate_by_name — 都道府県+法人名の接頭辞で日本の法人を検索します。国税庁公開データに基づきます。入力例: {"prefecture": "13", "prefix": "渋谷", "limit": 10}
search_corporate_by_address — 都道府県+所在地の接頭辞で日本の法人を検索します。国税庁公開データに基づきます。入力例: {"prefecture": "13", "prefix": "渋谷", "limit": 10}
lookup_corporate — 法人番号の確定照会と名称・所在地の候補探索を分離して返す。名称だけでは断定せず複数候補と根拠別scoreを返す。番号確定例: {"corporateNumber": "8000000000001"}/候補例: {"name": "渋谷", "prefecture": "13",
verify_invoice_number — 適格請求書発行事業者番号(T+13桁)の登録・取消・失効を日付付きで照合します。未発見は個人非掲載または未収録として明示し、無効・不存在と断定しません。入力例: {"invoiceNumber": "T8000000000001"}
company_profile — 法人番号(13桁)で基本情報・補助金・届出・財務の会社プロファイルを返す。各領域の出典・鮮度・欠損を保持し、部分障害時は取得済みと欠損を同時に返す。入力例: {"corporateNumber": "8000000000001"}
https://jp-corporate.plugrail.dev/mcpYes — PlugRail Corporate Number operates its own remote MCP server at jp-corporate.plugrail.dev. gate connects you to that official endpoint and adds security scanning, per-tool access rules, and an activity log on top.
Add gate's gateway URL to your AI client once, then pick PlugRail Corporate Number in the directory. No account or sign-in is needed. From then on, PlugRail Corporate Number's tools are available in every client you've connected to gate.
No. PlugRail Corporate Number runs the server, and gate is fully managed. You just connect one URL — there's nothing to install, deploy, or maintain.
It's the vendor's official endpoint, and gate scans its tools for prompt injection and hidden instructions before it goes live, re-checks it whenever it changes, and lets you allow, block, or require approval for every single tool.
Yes — you can get started with gate for free and connect PlugRail Corporate Number in minutes. No credit card required.
Every server below works through the same gateway URL — connect once, add tools anytime.
Set up PlugRail Corporate Number in: Claude · Claude Code · ChatGPT · Cursor · VS Code
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