japan-company-registry

japan-company-registry is a skill for Claude Code from Nolpak14/getregdata. It costs 207 tokens per session (2,821 once invoked), scanned A, original, MIT.

A lookup tool for Japanese companies using gBizINFO, an open government data service. It can retrieve a company's 13-digit corporate number, names, address, business details, incorporation date, capital, employees, representative, and related government records.

In plain words
What is it for?
Use it to verify Japanese companies and review details such as subsidies, certifications, government contracts, patents, and financial information.
Why use it?
It gives company identity and public business information from an official source, reducing the need to search scattered websites or paid databases.

Skill for Claude Code

Written for Claude Code: shipped in a Claude Code plugin.

Part of the regdata-company-lookup plugin — 28 skills shipped together

Good fit Use it to verify Japanese companies and review details such as subsidies, certifications, government contracts, patents, and financial information.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/nolpak14/getregdata/japan-company-registry
Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Any agent
npx skills add Nolpak14/getregdata --skill japan-company-registry
Clone the repo
git clone --depth 1 https://github.com/Nolpak14/getregdata

Made for: Claude Code.

Or install regdata-company-lookup, the plugin that ships this one along with the rest of its 28 skills.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for japan-company-registry

README.md
[![agentmods](https://agentmods.dev/badge/skills/nolpak14/getregdata/japan-company-registry/github.svg)](https://agentmods.dev/skills/nolpak14/getregdata/japan-company-registry)
Your own site
<a href="https://agentmods.dev/skills/nolpak14/getregdata/japan-company-registry"><img src="https://agentmods.dev/badge/skills/nolpak14/getregdata/japan-company-registry/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for japan-company-registry

Your own site · 80×15
<a href="https://agentmods.dev/skills/nolpak14/getregdata/japan-company-registry"><img src="https://agentmods.dev/badge/skills/nolpak14/getregdata/japan-company-registry.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 207 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,821 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 1 finding. A grade says what 26 rules found in the file — not that it is safe.
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5.1 $0.00207 $0.02821
Opus 5 $0.00103 $0.01411
Sonnet 5 $0.00041 $0.00564
Haiku 4.5 $0.00021 $0.00282

Measured 11d ago against content hash 85cc5acfa62f, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-11, from the pricing page.

Security

Grade A, and why

japan-company-registry scanned grade A with 1 finding against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 11d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Makes network callslowCapability

Not a fault in itself. Listed so you know the mod talks to something, and to what.

curl -H "X-hojinInfo-api-token: $GBIZ_TOKEN" \
skills/japan-company-registry/SKILL.md · 167 lines

How it starts

The opening of the file, as written. The whole thing — 167 lines — stays where its author put it; the contents beside it link to each section on GitHub.

japan-company-registry

Free, official Japanese company data from the gBizINFO (法人インフォ) open data API, run by Japan's Digital Agency / METI. This skill needs no paid actor and no Apify token - just a free gBizINFO API token you register yourself. Use it as the front door for Japanese entity verification, and route to the paid regdata actors when you need a jurisdiction that has no free API.

Persona

You are a KYB / due-diligence analyst verifying Japanese companies against the official register. You resolve a company to its 13-digit corporate number (hojin bangou), confirm it exists, read its registered identity and representative, and pull the gBizINFO enrichment (subsidies, certifications, procurement, patents, financials) for signals - all from the authoritative source, gBizINFO, not a commercial aggregator.

What this gives you (for free)

  • Company profile - corporateNumber (13-digit hojin bangou), name, name_en (English name), kana (phonetic reading), location / postal_code / address, business_items, date_of_establishment, capital_stock, employee_number, company_url, and representative name.
  • Subsidies - /subsidy: government subsidy awards the company received.
  • Certifications - /certification: official certifications and accreditations held.
  • Procurement / tenders - /procurement: public-procurement contracts awarded.
  • Patents - /patent: patent activity linked to the corporate number.
  • Financials - /finance: financial figures reported through gBizINFO.

Data is provided under open-data-style terms of use. Read-only.

Authentication (free, one-time)

gBizINFO is free but requires a free API token that you register yourself - there is no shared key baked into this skill.

  1. Apply at the registration form: https://info.gbiz.go.jp/hojin/api_registration/form - it asks for a system name, timezone, usage frequency, and purpose. Note: the form and terms are Japanese-language; the token is issued near-instantly and delivered via the form / email.
  2. Send the token in the request header on every call:

Read the full file on GitHub · 167 lines

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 11d ago First seen · 167 lines · 207 tokens per session scan A 85cc5acfa62f

Subscribe to this mod's changes

japan-company-registry is a skill published in the GitHub repository Nolpak14/getregdata (6 stars, last pushed 1mo ago), licensed MIT. It adds 207 tokens to every session and 2,821 once invoked, about $0.0010 per session on Opus 5. A static security scan graded it A with 1 finding (makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.

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