# Japan Qualified Invoice Issuers (Corporations)

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

- name: io.github.mk-career-planning/jp-invoice-registry
- version: 0.1.0
- connection class: R0 (autonomous)
- trust: 79/100 flags: no-repository
- quality: 86/100 (good)
- owner: not claimed
- descriptor: https://api.protogrid.dev/v1/servers/io.github.mk-career-planning%2Fjp-invoice-registry
- tools: https://api.protogrid.dev/v1/servers/io.github.mk-career-planning%2Fjp-invoice-registry/tools

**An agent can connect right now, no human step.** Remote endpoint, no authentication, reachable on the last probe.

## Connection (mcpServers)

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


## Trust

- hygiene: 80
- liveness: 99
- freshness: 100
- provenance: 45
- drivers: +website +reachable +uptime-96% +updated-21d-ago -no-repository
- Derived from observable signals (official registry feed and our own credential-free probes); no code audit performed.

## Quality 86/100 (good)

### protocol: 75 (weight 25)

- warn `protocol.modern`: newest supported version is 2025-11-25; 2026-07-28 not supported, older versions are deprecated until 2027-07-28
- n/a `protocol.stateless`: only applies to 2026-07-28 servers
- pass `protocol.transport`: streamable HTTP
- n/a `protocol.list_ttl`: only applies to 2026-07-28 servers

### authorization: n/a (weight 15)

- n/a `auth.prm`, `auth.as_metadata`, `auth.cimd`: no remote uses OAuth
- n/a `auth.secret_in_url`: no templated URL

### tool hygiene: 88 (weight 30)

- pass `tools.descriptions`: every tool has a description
- pass `tools.description_length`: descriptions are concise
- pass `tools.schemas`: every tool has an object input schema
- pass `tools.annotations`: 4 of 4 tools declare readOnlyHint or destructiveHint
- fail `tools.directory_hints`: no tool declares all four of readOnlyHint, destructiveHint, idempotentHint and openWorldHint; missing: invoice_registration_changes (destructiveHint, idempotentHint); catalog (destructiveHint, idempotentHint, openWorldHint); invoice_registration_lookup (destructiveHint, idempotentHint); …
- pass `tools.token_cost`: about 737 tokens to load every tool
- pass `tools.api_dump`: tools are not a one-to-one API dump
- pass `tools.hidden_text`: no hidden text in tool names, descriptions, schemas or annotations

### stability: 100 (weight 15)

- pass `stability.changes`: 1 tool changes in 30 days
- pass `stability.rug_pull`: no tool changed its meaning under the same name
- pass `stability.new_links`: no tool change named a new site

### dependencies: n/a (weight 15)

- n/a `deps.known_vulns`, `deps.mcp_sdk_version`, `deps.resolvable`: no npm or PyPI package

- tools: 4, about 737 tokens to load them all
- tool set hash: 3530617fa1def926d07e8845b732d26b
- tools last changed: 2026-10-30T19:34:09.275Z
- badge: [![protogrid quality](https://protogrid.dev/badge/io.github.mk-career-planning/jp-invoice-registry.svg)](https://protogrid.dev/servers/io.github.mk-career-planning/jp-invoice-registry)
- Checks run on what our credential-free, read-only probes observe; tools are never called and no code audit is performed.

### Tool changes

- 2026-10-30 `get_receipt` changed (description)
  - before: 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.
  - after: 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.

Full history: https://api.protogrid.dev/v1/servers/io.github.mk-career-planning%2Fjp-invoice-registry/changes

## Remotes

- https://jp-invoice-registry-production.mk-career-planning.workers.dev/mcp (streamable-http, auth none, reachable true, uptime30d 0.96385545)

## Packages

_none_

## Tools (4)

- `catalog`: List the tools of this server with prices, data sources, licensing, daily limits and data freshness.
- `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.
- `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'.