Japan Qualified Invoice Issuers (Corporations)

io.github.mk-career-planningPublished by GitHub account mk-career-planningv0.1.0Updated Oct 24, 2026

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

VerifiedStreamable HTTPWeb executableBusiness & Commerce

Overview

AI-generated overview

Remote MCP server for checking Japanese NTA qualified invoice issuer registration status and daily changes.

What you can do
Look up a Japanese corporation's qualified invoice issuer status by T-number or 13-digit corporate number, with check-digit validation, returning listed, expired or unknown. Retrieve corporations newly registered, changed, cancelled or expired since a given date. Re-fetch the stored result of a settled paid call by receipt id when a response was lost. List the server's tools with prices, data sources, licensing, daily limits and data freshness.
When to use it
Use it when an assistant must confirm whether a Japanese corporation is a registered qualified invoice issuer, when it was registered, or whether it was cancelled or expired, or must track recent registration changes. Suited to Japanese invoicing and tax checks.
Requirements
Remote endpoint; no local runtime or package needed. No authentication, environment variables or headers declared. Network access required. Some tools are paid calls.
Before you install
Some lookups are paid calls that cost money; check prices and daily limits first. Paid results can be re-fetched by receipt id and are kept 90 days. Data comes from NTA public files, and change records cover only files this service actually read.

Installation

In SourceWeft

  1. Open Japan Qualified Invoice Issuers (Corporations) in the dashboard and add it to a workspace.
  2. Enable the server for the chats that should use its tools.

Web executable via Streamable HTTP. Remote servers run from the web runtime once configured in a workspace.

Use with an agent

Paste this prompt into Claude Code, Codex, Cursor or another agent — or into SourceWeft chat. The agent reads this server's install guide, shows you its publisher, endpoint and sign-in, and adds it to your client once you agree. Keys never go into a command.

Read https://sourceweft.com/mcp/io.github.mk-career-planning%2Fjp-invoice-registry/install.md and connect the MCP server it describes to my client. Before changing any config, show me its publisher, endpoint and sign-in method and wait for my OK. Never put an API key in a command or in a file I would commit; ask me where it should come from.

Read the install guide the agent follows

Other MCP clients

Add this to your client's mcpServers config.

{
  "mcpServers": {
    "japan-qualified-invoice-issuers-corporat": {
      "type": "http",
      "url": "https://jp-invoice-registry-production.mk-career-planning.workers.dev/mcp"
    }
  }
}

Tools

4

catalog

Catalog: tools, prices and limits

List the tools of this server with prices, data sources, licensing, daily limits and data freshness.

Takes no parameters.

invoice_registration_lookup

Look up a qualified invoice issuer registration (corporations)

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'.

Parametersnumbercorporate_number

invoice_registration_changes

Qualified invoice issuer changes (corporations)

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.

Parameterslimitsincerequiredcursorevent_type

get_receipt

Get receipt of a paid call

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.

Parametersreceipt_idrequired

Version history

1
  1. v0.1.0LatestOct 24, 2026

Score

83% of the applicable checks met

How complete this listing is, computed from the registry entry, the endpoint and public sources. Not a rating of the server and not a statement that it is safe or working today: reachability is a dated check, and no installs or reviews go into the score.

  • Reached in the last 30 daysRequired25 pts
  • Auth declaredRequired10 pts
  • Tools listedRequired15 pts
  • DescriptionRequired15 pts
  • Logo10 pts
  • Documentation15 pts

    Declare a GitHub repository with a README, or serve resource_documentation in the OAuth protected-resource metadata.

  • LicenseNot applicable

    A hosted service is used under its provider's terms, so no license is expected here. This check is left out of the percentage.