Japan Corporate Number and Certifications (gBizINFO)
REMOTE · JP-GBIZINFO-PRODUCTION.MK-CAREER-PLANNING.WORKERS.DEV
Which Japanese corporate numbers match this company name? gBizINFO (METI) relay with sources.
Available components
Last scanned (7 hours ago)
Scores higher than 57% of remote servers
Reachable. Last reached 18 Oct 2026.
Category CRM and Sales
How this component scores in each security and reliability category. Every signal is checked automatically against the live server, and we only credit what we can confirm. How we score → Why this is hard to score →
Endpoint Security63
- The endpoint's TLS certificate is valid, in date, and uses a strong key. View diagnostics → Pass
- No authorisation is required to call this server. Every tool declares its destructiveHint and none is destructive, so open access doesn't expose one. See how to fix → View diagnostics → Partial
- HTTPS enforcement could not be verified: the plaintext port answered with HTTP 406, which proves neither a plaintext path nor enforcement. View diagnostics → Unverified
- HSTS check failed: the Strict-Transport-Security header is absent. See how to fix → View diagnostics → Fail
- DNSSEC check failed: this domain isn't protected by DNSSEC. See how to fix → View diagnostics → Fail
Transport & Reachability100
- Verified streamable-http transport via a live MCP handshake. View diagnostics → Pass
Schema Quality & AI Usability76
- AI-judged instruction clarity (excellent).Pass
- Context-footprint check failed: tool/resource definitions use about 709 tokens (~141/item across 5 items; 5 tools + 0 resources), over budget; trim descriptions and params. See how to fix → Fail
- Usage-examples check failed: none of the tools include examples. See how to fix → Fail
Stability & Change Management3
- Stability observed for 1 of 30 days with no destabilising changes; credit accrues until the full window elapses.Partial
Tool Coverage100
- 100% of tools have a non-trivial description (not blank, and not just the tool's name).Pass
- 100% of tool parameters carry a description.Pass
- Structured output schemas are declared (100% of tools); any adoption earns full credit.Pass
Tool Safety100
- No prompt-injection markers were found in the server instructions, tool names or descriptions we captured.Pass
- We read all 5 captured tool definition(s), and no name or description among them implies an irreversible operation.Pass
- An AI judge read all 5 captured unit(s) of tool text and found none that tries to manipulate the model reading it.Pass
Capabilities100
- Implements a supported MCP spec version (2025-11-25); the latest is 2026-07-28.Pass
Every change we have recorded for this component, newest first. Security-relevant changes are always shown. ▲ marks a change for the better, ▼ a change for the worse; unmarked changes are neutral.
- 18 Oct 26 0
- Stability: unverified → 0.03 ▲ functional
- 17 Oct 26 67
First indexed and scored.
Diagnostic detail from the automated scan of this channel: what the scanner observed at each step, so you can see exactly where a check passed or failed. It is informational only and never changes the trust score.
Captured 18 Oct 2026 · Probed https://jp-gbizinfo-production.mk-career-planning.workers.dev/mcp
TLS valid
Negotiated TLS 1.3 with TLS_AES_128_GCM_SHA256 .
| Subject | Issuer | Valid from | Valid until | Key | Signature | Serial |
|---|---|---|---|---|---|---|
| CN=mk-career-planning.workers.dev | CN=YE2,O=Let's Encrypt,C=US | 10 Oct 2026 | 8 Jan 2027 | ECDSA 256 | ECDSA-SHA384 | 62a608d12f78fd3a8d88d692f2a2cd87fd3 |
| SANs: *.mk-career-planning.workers.dev, mk-career-planning.workers.dev | ||||||
| CN=YE2,O=Let's Encrypt,C=US (CA) | CN=Root YE,O=ISRG,C=US | 3 Sept 2025 | 2 Sept 2028 | ECDSA 384 | ECDSA-SHA384 | 4df3b15dd6c0784c507cd37b58e6f115 |
| CN=Root YE,O=ISRG,C=US (CA) | CN=ISRG Root X2,O=Internet Security Research Group,C=US | 13 May 2026 | 2 Sept 2032 | ECDSA 384 | ECDSA-SHA384 | 872165fc34b6e5fba8add5b3705fb53a |
| CN=ISRG Root X2,O=Internet Security Research Group,C=US (CA) | CN=ISRG Root X1,O=Internet Security Research Group,C=US | 13 May 2026 | 2 Sept 2032 | ECDSA 384 | SHA256-RSA | 6c8f1dc727c7117f7baf853ac980f9cd |
Background: What to check on a remote MCP endpoint →
DNSSEC insecure
Validation of jp-gbizinfo-production.mk-career-planning.workers.dev. — Not signed
| Zone | DS | Keys | Algorithms | Outcome |
|---|---|---|---|---|
| . | trust_anchor | 20326, 38696 | 8, 8 | Verified |
| dev. | present | 60074 | 8 | Verified |
| workers.dev. | absent | Unsigned (proven) parent-signed NSEC/NSEC3 proves an unsigned delegation |
Authentication No authorisation required
The endpoint answered without asking for a token. Anyone who knows the URL can reach it.
| Result | No authorisation required |
|---|---|
| HTTP status | 200 |
Background: How OAuth 2.1 works in the 2026 MCP spec →
Transports 2 probes
| Transport | URL | Outcome | Status | Location |
|---|---|---|---|---|
| streamable-http | https://jp-gbizinfo-production.mk-career-planning.workers.dev/mcp | Verified | 200 | |
| http (plaintext) | http://jp-gbizinfo-production.mk-career-planning.workers.dev/mcp | Inconclusive | 406 |
The tools this component advertises to a client, with an estimated token cost for each. Expand a tool to see its parameters and schema. The per-tool counts are indicative and are not scored directly; the schema's total context footprint is one signal in Schema Quality & AI Usability. A tool's description is untrusted text the model reads on every call, which is what makes this list a security surface and not just an inventory: how tool poisoning works →
catalog Catalog: tools, prices and limits ~27
List the tools of this server with prices, data sources, licensing, daily limits and data freshness.
Input schema present but exposes no named parameters.
| Name | Type | Req | Description |
|---|---|---|---|
| daily_limits | object | yes | Daily limits of paid calls (calls, usd, timezone) or a misconfiguration notice. |
| fetch_status_values | object | – | – |
| legal | object | yes | – |
| paused | object | yes | Operator pause flags (true = paused). |
| payment | object | yes | – |
| provenance | array | – | Freshness receipts for every upstream source used. |
| server | object | yes | – |
| terms | string | yes | URL of the terms of service. |
| tools | array | yes | Every tool of this server with its price. |
No examples provided.
gbizinfo_certifications Notifications and certifications by corporate number (gBizINFO) ~200
Which notifications and certifications (todokede / nintei, e.g. FSA registrations) does gBizINFO (METI) publish for this Japanese corporate number? Returns the rows as published with ministry, title and date. Zero rows is unknown (source_not_exhaustive), never none: gBizINFO does not hold every ministry's information. Carries the gBizINFO source notice. Not an official result.
| Name | Type | Req | Description |
|---|---|---|---|
| corporate_number | string | yes | 13-digit Japanese corporate number (houjin bangou), e.g. 4000012090001. The check digit is verified; nothing is requested for an invalid number. |
| limit | integer | – | Number of rows to return, 1-100 (default 100). total and truncated tell how many matched. |
| ministry | string | – | Optional filter on the ministry as published (government_departments), e.g. 金融庁 for the Financial Services Agency. |
| Name | Type | Req | Description |
|---|---|---|---|
| answered_at | string | yes | – |
| attribution | object | yes | Required source notice (gBizINFO terms of use; notice_ja is the required wording, notice_ja_with_date adds the retrieval date) and the statement that this is processed by MK Career Planning and is no… |
| company | – | yes | – |
| last_observed_at | string|null | yes | – |
| legal_notice | string | yes | – |
| limitations | array | yes | – |
| match_basis | string | yes | – |
| matched_records | array | yes | – |
| provenance | array | yes | Freshness receipts for every upstream source used. |
| query | object | yes | – |
| registry | string | yes | – |
| retrieved_at | string|null | yes | – |
| returned | number | yes | – |
| source_url | string | yes | – |
| status | string | yes | – |
| status_as_of | string|null | yes | gBizINFO's last_acquisition_date (when gBizINFO last took the item from its source), as published. |
| terms | string | yes | URL of the terms of service. |
| total | number|null | yes | – |
| truncated | boolean | yes | – |
| unknown_reason | string|null | yes | – |
No examples provided.
gbizinfo_company_basic Basic information for a corporate number (gBizINFO) ~143
What does gBizINFO (METI) publish as basic information for this Japanese corporate number? Returns the name, kana, English name, address and the closure date and cause when the record states them (from the National Tax Agency source as relayed by gBizINFO), with gBizINFO's last_acquisition_date as status_as_of. Representative names are not returned. Carries the gBizINFO source notice. Not an official result.
| Name | Type | Req | Description |
|---|---|---|---|
| corporate_number | string | yes | 13-digit Japanese corporate number (houjin bangou), e.g. 4000012090001. The check digit is verified; nothing is requested for an invalid number. |
| Name | Type | Req | Description |
|---|---|---|---|
| answered_at | string | yes | – |
| attribution | object | yes | Required source notice (gBizINFO terms of use; notice_ja is the required wording, notice_ja_with_date adds the retrieval date) and the statement that this is processed by MK Career Planning and is no… |
| closure | – | yes | – |
| last_observed_at | string|null | yes | – |
| legal_notice | string | yes | – |
| limitations | array | yes | – |
| match_basis | string | yes | – |
| matched_records | array | yes | – |
| provenance | array | yes | Freshness receipts for every upstream source used. |
| query | object | yes | – |
| record | – | yes | – |
| record_state | – | yes | – |
| registry | string | yes | – |
| retrieved_at | string|null | yes | – |
| source_url | string | yes | – |
| status | string | yes | – |
| status_as_of | string|null | yes | gBizINFO's last_acquisition_date (when gBizINFO last took the item from its source), as published. |
| terms | string | yes | URL of the terms of service. |
| unknown_reason | string|null | yes | – |
No examples provided.
gbizinfo_resolve_corporate_number Corporate number candidates for a company name (gBizINFO) ~256
Which Japanese corporate numbers could this company name refer to? Searches gBizINFO (METI) by name (partial match), optionally within a prefecture, and returns every candidate with corporate number, name and address, marked exact_name or fuzzy_candidate. Never picks one for you: all candidate numbers are returned with total and truncated. Carries the gBizINFO source notice. Not an official result.
| Name | Type | Req | Description |
|---|---|---|---|
| address_hint | string | – | Optional part of the address (e.g. 千代田区霞が関). Candidates whose published address contains it are listed first; no candidate is dropped. |
| limit | integer | – | Number of candidates to detail, 1-50 (default 20). candidate_corporate_numbers always lists all of them (up to 200). |
| name | string | yes | Company name in Japanese or English, 2-100 characters, e.g. 経済産業省 or a company name. gBizINFO matches it as a partial name. |
| prefecture | string | – | Optional prefecture code 01-47 (e.g. 13) or name (Tokyo or 東京都) to narrow the search to head offices in that prefecture. |
| Name | Type | Req | Description |
|---|---|---|---|
| answered_at | string | yes | – |
| attribution | object | yes | Required source notice (gBizINFO terms of use; notice_ja is the required wording, notice_ja_with_date adds the retrieval date) and the statement that this is processed by MK Career Planning and is no… |
| candidate_corporate_numbers | array | yes | Every candidate's corporate number, including those not detailed in candidates (never collapsed to one). |
| candidates | array | yes | – |
| exact_name_matches | number | yes | – |
| legal_notice | string | yes | – |
| limitations | array | yes | – |
| provenance | array | yes | Freshness receipts for every upstream source used. |
| query | object | yes | – |
| retrieved_at | string|null | yes | – |
| returned | number | yes | – |
| status | string | yes | candidates_found / no_candidates_found / unknown (see unknown_reason). A failure is never reported as no candidates. |
| status_as_of | string|null | yes | – |
| terms | string | yes | URL of the terms of service. |
| total | number|null | yes | Number of candidates gBizINFO returned (a lower bound when total_is_lower_bound). |
| total_is_lower_bound | boolean | yes | – |
| truncated | boolean | yes | – |
| unknown_reason | – | yes | – |
No examples provided.
get_receipt Get receipt of a paid call ~83
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.
| Name | Type | Req | Description |
|---|---|---|---|
| receipt_id | string | yes | The receipt_id returned with a paid result ("rcpt_" + 64 hex characters). |
| Name | Type | Req | Description |
|---|---|---|---|
| payment | object | yes | – |
| provenance | array | yes | Freshness receipts for every upstream source used. |
| receipt_id | string | yes | Receipt id of the settled paid call ("rcpt_" + 64 hex). Use with get_receipt. |
| result | – | yes | The stored result, exactly as returned by the paid call. |
| settled_at | string|null | yes | – |
| terms | string | yes | URL of the terms of service. |
| tool | string | yes | Name of the paid tool that produced the result. |
No examples provided.
How do I install the Japan Corporate Number and Certifications (gBizINFO) MCP server?
Japan Corporate Number and Certifications (gBizINFO) is a hosted endpoint at https://jp-gbizinfo-production.mk-career-planning.workers.dev/mcp, so there is nothing to install locally. Ready-made configuration for Claude, Cursor, VS Code, Codex and 5 more is on this page, copied from each client's own documentation.
remote · jp-gbizinfo-production.mk-career-planning.workers.dev
claude mcp add --transport http mk-career-planning-jp-gbizinfo 'https://jp-gbizinfo-production.mk-career-planning.workers.dev/mcp'
What is the Japan Corporate Number and Certifications (gBizINFO) MCP server?
Japan Corporate Number and Certifications (gBizINFO) is an MCP server listed in the public MCP registry as io.github.mk-career-planning/jp-gbizinfo. Which Japanese corporate numbers match this company name? gBizINFO (METI) relay with sources. This page covers its hosted endpoint (https://jp-gbizinfo-production.mk-career-planning.workers.dev/mcp).
Is the Japan Corporate Number and Certifications (gBizINFO) MCP server safe to use?
Japan Corporate Number and Certifications (gBizINFO) scores 67 out of 100 on VerifyMCP. That is a record of what we were able to check automatically, not an endorsement. The category breakdown on this page shows every signal behind the number, including the ones we could not confirm.
What tools does the Japan Corporate Number and Certifications (gBizINFO) MCP server expose?
Japan Corporate Number and Certifications (gBizINFO) exposes 5 tools: catalog, gbizinfo_resolve_corporate_number, gbizinfo_company_basic, gbizinfo_certifications, get_receipt. Their descriptions and schemas cost roughly 709 tokens of context every time the server is loaded.
Does the Japan Corporate Number and Certifications (gBizINFO) MCP server require authentication?
No. We connected to Japan Corporate Number and Certifications (gBizINFO) without credentials and it answered, so anything it exposes is reachable by anyone who knows the address.
Is the Japan Corporate Number and Certifications (gBizINFO) MCP server still maintained?
Japan Corporate Number and Certifications (gBizINFO) is still listed as active in the MCP registry. We last reached this channel on 18 October 2026. Those dates come from our own scans of the registry and the channel itself, not from anything the publisher announced.