lookup_corporate_number
shallowjp.ossalt/jp-biz-tools · Verify this server
Look up a 13-digit Japanese corporate number (法人番号) in the National Tax Agency's monthly bulk data: name, furigana, English name, kind, registered address and postal code, assignment date, and closure (date, cause, successor) if the registry record was closed. The check digit (first digit) is verified first; a wrong check digit is reported as an input error. flags: `closed` (the registry record is closed — tell the user), `excluded_from_search`, `not_found`. This is not the invoice (qualified invoice issuer) registry. / 法人番号(13桁)から、名前・フリガナ・英語の名前・法人の種類・所在地・郵便番号・指定の日・閉鎖の日と事由・承継先を返す。国税庁の全件データ(月1回)。先頭の1桁(チェックデジット)を確かめ、合わなければ入力の誤りとして返す。インボイス(適格請求書発行事業者)の登録の確認ではない。
1 trials · measured 1 day ago
lookup_corporate_number scores 100.0/100 on Vouch's measured behaviour index, from 1 real invocation trials against jp.ossalt/jp-biz-tools, measured 20 Oct 2026 under methodology v0.2.0. Every measured component scored 100.
Component breakdown
| Component | Weight | Value |
|---|---|---|
| Reliability | 35% | not applicable |
| Schema integrity | 25% | 100.0 |
| Failure behaviour | 15% | not applicable |
| Latency | 15% | not applicable |
| Concurrency | 10% | not applicable |
Tool details
- Transport
- remote
- Credential class
- self-provisionable
- Input schema
- not declared
- Output schema
- not declared
- Side-effect classification
- unclassified
Score history
| Day | Score | Tier | Methodology |
|---|---|---|---|
| 2026-10-20 | 100.0 | shallow | v0.2.0 |
Probe evidence
| Probe | Outcomes |
|---|---|
| schema_integrity | pass: 1 |
Raw request/response logs are not archived yet — the outcome counts above are drawn directly from every recorded trial.
Embed this score
Available for every tool, scored or not — not a verification perk. Always links back to this page.
[](https://vouch.tools/tools/873eed61-cd4a-4d70-b1e5-7a03dba28b82)