Japan Public Data (法人番号・登録支援機関・官公需入札)
REMOTE · MCP-TOOLS.TAKARA0408103123.WORKERS.DEV
Japan public data: corporate numbers, registered support organizations, government bid notices.
Available components
Last scanned (20 hours ago)
Scores higher than 58% of remote servers
Reachable. Last reached 4 Nov 2026.
Category Search and Retrieval
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 405, 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 Usability69
- AI-judged instruction clarity (excellent).Pass
- Context-footprint check failed: tool/resource definitions use about 654 tokens (~218/item across 3 items; 3 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 Management43
- Stability observed for 13 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
Tool Safety100
- No prompt-injection markers were found in the server instructions, tool names or descriptions we captured.Pass
- We read all 3 captured tool definition(s), and no name or description among them implies an irreversible operation.Pass
- An AI judge read all 3 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.
- 4 Nov 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 40 to 43. That category is still filling its 30-day observation window: 12 days of observed history at the previous scan, 13 at this one. The score rises as the window fills, whether or not the server changes.
- 2 Nov 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 33 to 37. That category is still filling its 30-day observation window: 10 days of observed history at the previous scan, 11 at this one. The score rises as the window fills, whether or not the server changes.
- 31 Oct 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 27 to 30. That category is still filling its 30-day observation window: 8 days of observed history at the previous scan, 9 at this one. The score rises as the window fills, whether or not the server changes.
- 29 Oct 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 20 to 23. That category is still filling its 30-day observation window: 6 days of observed history at the previous scan, 7 at this one. The score rises as the window fills, whether or not the server changes.
- 27 Oct 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 13 to 17. That category is still filling its 30-day observation window: 4 days of observed history at the previous scan, 5 at this one. The score rises as the window fills, whether or not the server changes.
- 24 Oct 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 3 to 7. That category is still filling its 30-day observation window: 1 days of observed history at the previous scan, 2 at this one. The score rises as the window fills, whether or not the server changes.
- 23 Oct 26 0
- Stability: unverified → 0.03 ▲ functional
- 22 Oct 26 66
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 4 Nov 2026 · Probed https://mcp-tools.takara0408103123.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=takara0408103123.workers.dev | CN=WE1,O=Google Trust Services,C=US | 3 Oct 2026 | 1 Jan 2027 | ECDSA 256 | ECDSA-SHA256 | a6ff36c5b5686131139af6c9d05b4853 |
| SANs: takara0408103123.workers.dev, *.takara0408103123.workers.dev | ||||||
| CN=WE1,O=Google Trust Services,C=US (CA) | CN=GTS Root R4,O=Google Trust Services LLC,C=US | 13 Dec 2023 | 20 Feb 2029 | ECDSA 256 | ECDSA-SHA384 | 7ff31977972c224a76155d13b6d685e3 |
| CN=GTS Root R4,O=Google Trust Services LLC,C=US (CA) | CN=GlobalSign Root CA,OU=Root CA,O=GlobalSign nv-sa,C=BE | 15 Nov 2023 | 28 Jan 2028 | ECDSA 384 | SHA256-RSA | 7fe530bf331343bedd821610493d8a1b |
Background: What to check on a remote MCP endpoint →
DNSSEC insecure
Validation of mcp-tools.takara0408103123.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://mcp-tools.takara0408103123.workers.dev/mcp | Verified | 200 | |
| http (plaintext) | http://mcp-tools.takara0408103123.workers.dev/mcp | Inconclusive | 405 |
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 →
lookup_corporate_number Lookup Japanese corporate number ~145
Look up Japanese companies in the National Tax Agency Corporate Number Publication Site. Search by 13-digit corporate number, or by company name. Returns name, address and status. 国税庁 法人番号公表サイトから、法人番号（13桁）または法人名で法人情報（名称・所在地・閉鎖有無）を検索します。
| Name | Type | Req | Description |
|---|---|---|---|
| name | string | – | Company name, partial match, closed companies excluded / 法人名（部分一致・閉鎖法人は対象外）。number とは同時指定不可 |
| number | string | – | 13-digit corporate number / 法人番号（13桁） |
No output schema declared.
No examples provided.
search_local_govt_bids Search Japanese public procurement notices ~259
Search bid and tender notices from Japanese local governments and national agencies via the KKJ (官公需情報ポータルサイト) search API by the Small and Medium Enterprise Agency. Filter by keywords (AND), prefecture, issuing organization and notice date. Returns title, organization, dates and the notice URL. 官公需情報ポータルサイトの検索APIで、自治体・国の機関の入札・公募情報をキーワード・都道府県・機関名・公告日で検索します。
| Name | Type | Req | Description |
|---|---|---|---|
| limit | integer | – | Max results (default 10, max 20) / 最大件数 |
| organization | string | – | Issuing organization, partial match / 機関名（部分一致。例：横浜市） |
| prefecture | string | – | Prefecture name / 都道府県（例：東京都、大阪） |
| query | string | – | Keywords separated by spaces (AND) / キーワード（空白区切りでAND） |
| since | string | – | Notices issued on or after this date, YYYY-MM-DD (default: 30 days ago) / 公告日がこの日以降（既定：30日前） |
No output schema declared.
No examples provided.
search_support_orgs Search Japanese registered support organizations (SSW) ~250
Search the Immigration Services Agency of Japan registry of Registered Support Organizations for Specified Skilled Workers. Filter by name, location (prefecture/city in head office or support office address) and supported language. Organizations that reported suspension are excluded unless includeSuspended is true. 出入国在留管理庁「登録支援機関登録簿」から、特定技能外国人の登録支援機関を名称・所在地・対応言語で検索します（同梱データ・基準日あり）。
| Name | Type | Req | Description |
|---|---|---|---|
| includeSuspended | boolean | – | Include organizations that reported suspension / 支援業務休止の届出がある機関も含める |
| language | string | – | Supported language in Japanese / 対応言語（例：ベトナム語、英語） |
| limit | integer | – | Max results (default 10, max 20) / 最大件数 |
| location | string | – | Prefecture or city, partial match on address / 所在地（例：東京都、横浜市。住所の部分一致） |
| name | string | – | Organization name, partial match / 名称（部分一致） |
No output schema declared.
No examples provided.
How do I install the Japan Public Data (法人番号・登録支援機関・官公需入札) MCP server?
Japan Public Data (法人番号・登録支援機関・官公需入札) is a hosted endpoint at https://mcp-tools.takara0408103123.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 · mcp-tools.takara0408103123.workers.dev
claude mcp add --transport http takaratomita-mcp-tools 'https://mcp-tools.takara0408103123.workers.dev/mcp'
What is the Japan Public Data (法人番号・登録支援機関・官公需入札) MCP server?
Japan Public Data (法人番号・登録支援機関・官公需入札) is an MCP server listed in the public MCP registry as io.github.takaratomita/mcp-tools. Japan public data: corporate numbers, registered support organizations, government bid notices. This page covers its hosted endpoint (https://mcp-tools.takara0408103123.workers.dev/mcp).
Is the Japan Public Data (法人番号・登録支援機関・官公需入札) MCP server safe to use?
Japan Public Data (法人番号・登録支援機関・官公需入札) scores 72 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 Public Data (法人番号・登録支援機関・官公需入札) MCP server expose?
Japan Public Data (法人番号・登録支援機関・官公需入札) exposes 3 tools: lookup_corporate_number, search_support_orgs, search_local_govt_bids. Their descriptions and schemas cost roughly 654 tokens of context every time the server is loaded.
Does the Japan Public Data (法人番号・登録支援機関・官公需入札) MCP server require authentication?
No. We connected to Japan Public Data (法人番号・登録支援機関・官公需入札) without credentials and it answered, so anything it exposes is reachable by anyone who knows the address.
Is the Japan Public Data (法人番号・登録支援機関・官公需入札) MCP server still maintained?
Japan Public Data (法人番号・登録支援機関・官公需入札) is still listed as active in the MCP registry. We last reached this channel on 4 November 2026. Those dates come from our own scans of the registry and the channel itself, not from anything the publisher announced.