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Japan Corporate Number (NTA)

MCP server · hosted · v0.1.0 · io.github.mk-career-planning/jp-corporate-number
Online · tested 8h agoNEW · 9h agoSeen in the registry 8h ago

What does Japan's tax agency publish for this corporate number? NTA Web-API relay with sources.

Website ↗How to connect ↓

What it does

Japan Corporate Number (NTA) is an MCP server, a connector that lets an AI assistant use it as a tool. It is hosted: an assistant connects to it over the internet, nothing to install.

No capability identified yet from its description.

Facts come from the Official MCP Registry, as declared by the publisher. Capabilities are matched automatically (low confidence). None of this is a test of the tool.

At a glance

Hosted (remote)YES
Local installNO
Version0.1.0
PriceNot in the registry
First seen07 Nov 2026
Last checked8h ago

How to connect

As declared in the Official MCP Registry · hosted endpoint tested by Electra Index 8h ago (live check)

Hosted endpoint

  • https://jp-corporate-number-production.mk-career-planning.workers.dev/mcp streamable-http

In Claude Code: claude mcp add --transport http japan-corporate-number-nta https://jp-corporate-number-production.mk-career-planning.workers.dev/mcp

MCP settings (Claude Desktop, Cursor and other MCP clients)

{
  "mcpServers": {
    "japan-corporate-number-nta": {
      "url": "https://jp-corporate-number-production.mk-career-planning.workers.dev/mcp"
    }
  }
}

Live check

Electra Index connected to the hosted endpoint 8h ago

ONLINE Japan Corporate Number (NTA) answered an MCP connection on 07 Nov 2026 and introduced itself as jp-corporate-number 0.1.0 (MCP protocol 2025-06-18).

4 tools offered to AI assistants

  • catalog · List the tools of this server with prices, data sources, licensing, daily limits and data freshness.
  • nta_corporate_number_lookup · What does Japan's National Tax Agency (NTA) publish for this 13-digit corporate number? Returns the name, furigana, English name, kind, location, assignment date and, when the record states it, the closure date with the recorded cause code
  • nta_corporate_number_search · Which Japanese corporate numbers could this organization name refer to? Searches the National Tax Agency (NTA) Web-API by name (prefix match after the legal form, with the NTA's fuzzy matching), optionally within a prefecture, and returns e
  • get_receipt · Re-fetch the stored result of a settled paid call by its receipt_id, for when the response was lost after payment. Free. Unknown or unsettled receipt ids return RECEIPT_NOT_FOUND. Results are kept for 30 days after settlement.

What "online" means: the server answered an MCP connection at the time of the check. It is not a guarantee of security, quality or continuous uptime. How we test: we open an MCP session and ask for the tool list, as an AI assistant would. We never run a tool and never send a key. Checked every few days. Method

Is this your server? Monitoring Pro: a check every 30 minutes and an email within the hour when it stops answering. Launch offer: $39.99 once, for life.

Facts & evidence

Each fact shows where it was seen and when.
FactValueEvidenceSourceLast confirmed
Hosted endpointhttps://jp-corporate-number-production.mk-career-planning.workers.dev/mcpDECLAREDSRC-001 Official MCP Registry8h ago
Local install (package)noDECLAREDSRC-001 Official MCP Registry8h ago
Remote access (hosted)yesDECLAREDSRC-001 Official MCP Registry8h ago
Websitehttps://jp-corporate-number-production.mk-career-planning.workers.dev/llms.txtDECLAREDSRC-001 Official MCP Registry8h ago
Registry statusactiveDECLAREDSRC-001 Official MCP Registry8h ago
Version0.1.0DECLAREDSRC-001 Official MCP Registry8h ago
MCP serveryesDECLAREDSRC-001 Official MCP Registry8h ago

Change history

  • NEW07 Nov 2026
    first seen in the index

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Flag it and our robot re-checks the official source. Reports never change a score.

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For publishers · optional

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Questions about Japan Corporate Number (NTA)

How do I connect Japan Corporate Number (NTA)?

Use the hosted endpoint https://jp-corporate-number-production.mk-career-planning.workers.dev/mcp in your assistant's MCP settings. The exact settings are in "How to connect" above, as declared in the Official MCP Registry.

What tools does Japan Corporate Number (NTA) offer?

When Electra Index connected on 07 Nov 2026, it listed 4 tools: catalog, nta_corporate_number_lookup, nta_corporate_number_search, get_receipt. The full list is in "Live check" above.

Is Japan Corporate Number (NTA) online?

Yes. Its hosted endpoint answered an MCP connection from Electra Index 8h ago.