MCP server

Japan Qualified Invoice Issuers (Corporations)

io.github.mk-career-planning/jp-invoice-registry

Checked 26 Oct 2026, 08:29 UTC · Connected to it and listed its tools

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

Working at last checkAbout 858 tokens per request once connected4 tools

Website

https://jp-invoice-registry-production.mk-career-planning.workers.dev/mcp

At a glance

Type: MCP server
Publisher: Not verified
Status: Working at last check
Tools: 4
Token cost: About 858 tokens per request
Sets up in: Claude Code, Claude Desktop, Codex, Gemini CLI, Cursor, VS Code, Antigravity, ChatGPT, OpenAI API, Grok
Last checked: 26 Oct 2026, 08:29 UTC

Connect it to your agent

Add to Cursor Add to VS Code VS Code Insiders

Opens the app, which shows the server and asks you to confirm. For other apps, copy the setup below.

Claude Code

claude mcp add --transport http jp-invoice-registry https://jp-invoice-registry-production.mk-career-planning.workers.dev/mcp

Claude Desktop

Settings → Connectors → Add custom connector, and paste the URL.

Codex (config.toml)

[mcp_servers.jp-invoice-registry]
url = "https://jp-invoice-registry-production.mk-career-planning.workers.dev/mcp"

Gemini CLI

{"mcpServers":{"jp-invoice-registry":{"httpUrl":"https://jp-invoice-registry-production.mk-career-planning.workers.dev/mcp"}}}

Cursor

{"mcpServers":{"jp-invoice-registry":{"url":"https://jp-invoice-registry-production.mk-career-planning.workers.dev/mcp"}}}

VS Code

{"servers":{"jp-invoice-registry":{"type":"http","url":"https://jp-invoice-registry-production.mk-career-planning.workers.dev/mcp"}}}

Antigravity

agy mcp add jp-invoice-registry https://jp-invoice-registry-production.mk-career-planning.workers.dev/mcp

ChatGPT

Settings → Apps & Connectors → Advanced settings: turn on Developer mode, then Create a connector and paste the URL. Which plans can do this varies.

OpenAI API (Responses tools)

{"type":"mcp","server_label":"jp-invoice-registry","server_url":"https://jp-invoice-registry-production.mk-career-planning.workers.dev/mcp","require_approval":"always"}

Grok (xAI API tools)

{"type":"mcp","server_label":"jp-invoice-registry","server_url":"https://jp-invoice-registry-production.mk-career-planning.workers.dev/mcp"}

Tools

invoice_registration_changes ~364 tokens
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). Ea
invoice_registration_lookup ~270 tokens
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 publi

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