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Japan Qualified Invoice Issuers (Corporations) MCP Server

by mk-career-planning Your server? Claim it
answering

Japan Qualified Invoice Issuers (Corporations) is answering right now. Last checked 6 min ago. It exposes 4 tools.

Japan NTA qualified invoice issuer status of corporations by T-number. Records daily changes.

Uptime history 46 hours of history
46 hours agonow
100.0%
Uptime 24h
91 of 91 checks
4
Tools
read from the server
1315 ms
Response time
average over 24h
open, no key
Access
streamable-http

Nothing serious here today

Today is the operative word: we check Japan Qualified Invoice Issuers (Corporations) every 15 minutes and re-read its code on every release. Watch it and you find out the day that stops being true.

Three servers free · no card

Connect this server

Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 6 min ago.

run in your terminal
claude mcp add jp-invoice-registry --transport http https://jp-invoice-registry-production.mk-career-planning.workers.dev/mcp
Settings → Connectors → Add custom connector, then paste this address
https://jp-invoice-registry-production.mk-career-planning.workers.dev/mcp
~/.codex/config.toml
[mcp_servers.jp-invoice-registry]
url = "https://jp-invoice-registry-production.mk-career-planning.workers.dev/mcp"
.cursor/mcp.json
{
  "mcpServers": {
    "jp-invoice-registry": {
      "url": "https://jp-invoice-registry-production.mk-career-planning.workers.dev/mcp"
    }
  }
}
.vscode/mcp.json
{
  "servers": {
    "jp-invoice-registry": {
      "type": "http",
      "url": "https://jp-invoice-registry-production.mk-career-planning.workers.dev/mcp"
    }
  }
}

Available tools 4

Read directly from the server with tools/list, grouped by what they act on. If a tool disappears, we record the date.

invoice
invoice_registration_changes
Which Japanese corporations were newly registered as qualified invoice issuers, had their published details changed, or had their registration cancelled or expired, in NTA's daily difference files since a date? From this service's own record of the files it read (NTA keeps them 40 business days). Each change has the file date, observed_at, the event type and the dates as published. Corporations only. Free window: last 30 days; page with next_cursor.
invoice_registration_lookup
Is this Japanese corporation a registered qualified invoice issuer, since when, and was it cancelled or did it expire? Give number (T1000020109142) or corporate_number (13 digits); the check digit is validated. Returns listed, expired (cancellation or expiry date passed) or unknown, with NTA's published dates, the difference file used, fetched_at and recorded changes. Corporations only. A number not seen in the recorded files is unknown, never 'not registered'.
catalog
catalog
List the tools of this server with prices, data sources, licensing, daily limits and data freshness.
receipt
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 90 days after settlement.

Endpoints

URLTransportStateLatencyChecked
https://jp-invoice-registry-production.mk-career-planning.workers.dev/mcp streamable-http answering 905 ms 6 min ago

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Japan Qualified Invoice Issuers (Corporations) — questions

Answers built from our own checks of this server.

What can Japan Qualified Invoice Issuers (Corporations) do?
It exposes 4 tools, read directly from the server on our last check. Among them: catalog, get_receipt, invoice_registration_changes, invoice_registration_lookup. The full list with descriptions is on this page — we take it from the server itself via tools/list, not from a README. How MCP servers expose tools in the first place →
Is Japan Qualified Invoice Issuers (Corporations) working right now?
We send a real MCP handshake every 15 minutes. Over the last 24 hours 91 of 91 checks got a reply (100.0%), average response time 1315 ms. The bar chart above shows every period we have measured.
How do I connect Japan Qualified Invoice Issuers (Corporations)?
Copy the ready config from this page. We generate it for Claude Code, Claude Desktop, Codex, Cursor and VS Code, each in the form that client actually reads. It is a remote server, so there is nothing to install — the client connects to the address.
Does Japan Qualified Invoice Issuers (Corporations) need an API key?
No. Japan Qualified Invoice Issuers (Corporations) completed a full MCP handshake with us as an anonymous client and listed its tools without asking for anything. All 4 of them are readable on this page. This is what we observed, not what the docs claim.
How fast is Japan Qualified Invoice Issuers (Corporations)?
It answers our handshake in 1315 ms on average, which is faster than 2% of all working MCP servers we measure. That is on the slow side — worth knowing if the tool sits inside an interactive loop. The comparison comes from our own checks across the whole registry, every 15 minutes.