Koskamo

mcp-tools MCP

A remote MCP server providing access to Japanese public data, including corporate numbers, registered support organizations, and government bid notices. It offers read-only tools for searching corporate entities, support agencies by language or location, and public procurement bids.

Endpoint and access

No sign-in to connect and list tools. Individual tools may still need a vendor account, credentials, or permissions; check the documented prerequisites.

mcp-tools MCP logo, by takaratomitaCommunity listingStreamable HTTPNo sign-inEndpoint checked 2026-11-01Published by takaratomita
MCP endpoint (Streamable HTTP)
https://mcp-tools.takara0408103123.workers.dev/mcp
Vendor documentation

What you can do with it

  • Search for corporate numbers or names using the National Tax Agency API
  • Find registered support organizations by name, location, or language
  • Search for government and local authority bid notices by keyword or region

Source and maintenance

Community listingRegistry 0.1.0
Maintenance checked

Protocol and capabilities

Server
mcp-tools-japan-public-data 0.1.0
MCP protocol
2025-06-18
Tools
3 advertised
Resources
Not advertised
Resource templates
Not advertised
Prompts
Not advertised
Server-advertised capabilities
{
  "tools": {
    "listChanged": true
  }
}

Tools

3 advertised

lookup_corporate_number — Lookup Japanese corporate number
Advertised by the server during the last successful anonymous check.
Advertised read-onlyOpen-world

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。

lookup_corporate_number input schema
{
  "type": "object",
  "$schema": "http://json-schema.org/draft-07/schema#",
  "properties": {
    "name": {
      "type": "string",
      "maxLength": 100,
      "minLength": 1,
      "description": "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": {
      "type": "string",
      "description": "13-digit corporate number / 法人番号(13桁)"
    }
  }
}
lookup_corporate_number annotations
{
  "title": "Lookup Japanese corporate number",
  "readOnlyHint": true,
  "openWorldHint": true,
  "idempotentHint": true,
  "destructiveHint": false
}
search_support_orgs — Search Japanese registered support organizations (SSW)
Advertised by the server during the last successful anonymous check.
Advertised read-only

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)。

search_support_orgs input schema
{
  "type": "object",
  "$schema": "http://json-schema.org/draft-07/schema#",
  "properties": {
    "name": {
      "type": "string",
      "maxLength": 100,
      "description": "Organization name, partial match / 名称(部分一致)"
    },
    "limit": {
      "type": "integer",
      "maximum": 20,
      "minimum": 1,
      "description": "Max results (default 10, max 20) / 最大件数"
    },
    "language": {
      "type": "string",
      "maxLength": 50,
      "description": "Supported language in Japanese / 対応言語(例:ベトナム語、英語)"
    },
    "location": {
      "type": "string",
      "maxLength": 100,
      "description": "Prefecture or city, partial match on address / 所在地(例:東京都、横浜市。住所の部分一致)"
    },
    "includeSuspended": {
      "type": "boolean",
      "description": "Include organizations that reported suspension / 支援業務休止の届出がある機関も含める"
    }
  }
}
search_support_orgs annotations
{
  "title": "Search Japanese registered support organizations (SSW)",
  "readOnlyHint": true,
  "openWorldHint": false,
  "idempotentHint": true,
  "destructiveHint": false
}
search_local_govt_bids — Search Japanese public procurement notices
Advertised by the server during the last successful anonymous check.
Advertised read-onlyOpen-world

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。

search_local_govt_bids input schema
{
  "type": "object",
  "$schema": "http://json-schema.org/draft-07/schema#",
  "properties": {
    "limit": {
      "type": "integer",
      "maximum": 20,
      "minimum": 1,
      "description": "Max results (default 10, max 20) / 最大件数"
    },
    "query": {
      "type": "string",
      "maxLength": 200,
      "description": "Keywords separated by spaces (AND) / キーワード(空白区切りでAND)"
    },
    "since": {
      "type": "string",
      "pattern": "^\\d{4}-\\d{2}-\\d{2}$",
      "description": "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)"
    },
    "prefecture": {
      "type": "string",
      "maxLength": 10,
      "description": "Prefecture name / 都道府県(例:東京都、大阪)"
    },
    "organization": {
      "type": "string",
      "maxLength": 100,
      "description": "Issuing organization, partial match / 機関名(部分一致。例:横浜市)"
    }
  }
}
search_local_govt_bids annotations
{
  "title": "Search Japanese public procurement notices",
  "readOnlyHint": true,
  "openWorldHint": true,
  "idempotentHint": true,
  "destructiveHint": false
}

Prompts

Not advertised

No prompt definitions available.

Resources

Not advertised

No resource definitions available.

30-day availability

Aggregated from read-only remote checks; this is not a tool-execution or security guarantee.

Successful checks
1 of 1 (100%)
Average latency
945 ms
95th percentile latency
945 ms

Maintenance history

Public check and source-refresh events. Editorial and ownership records remain private.

  • · probe · passed · 945 ms · metadata changed · 3 tool(s)

Connect from your client

Each snippet registers the same endpoint; pick the client you use.

This server is operated by the named third party. Listing and endpoint checks are not an endorsement or a security audit. Review the operator's permissions, terms, and data handling before connecting. How listings are checked and corrected.

Claude Code

Run this once in a terminal. It registers the remote server. Use --scope project to write .mcp.json for the repo.
Claude Code configuration
claude mcp add --transport http mcp-tools-mcp https://mcp-tools.takara0408103123.workers.dev/mcp

Codex

Run this once. Codex stores MCP servers in ~/.codex/config.toml (or .codex/config.toml in a trusted project).
Codex configuration
codex mcp add mcp-tools-mcp --url https://mcp-tools.takara0408103123.workers.dev/mcp

Cursor

Merge this server into .cursor/mcp.json in your project, then enable mcp-tools-mcp in your MCP settings.
Cursor configuration
{
  "mcpServers": {
    "mcp-tools-mcp": {
      "url": "https://mcp-tools.takara0408103123.workers.dev/mcp"
    }
  }
}

Cline

Merge this into cline_mcp_settings.json (Cline → MCP Servers → Configure).
Cline configuration
{
  "mcpServers": {
    "mcp-tools-mcp": {
      "type": "streamableHttp",
      "url": "https://mcp-tools.takara0408103123.workers.dev/mcp",
      "disabled": false
    }
  }
}

VS Code

Merge this server into .vscode/mcp.json. Use MCP: List Servers to start mcp-tools-mcp and inspect its tools.
VS Code configuration
{
  "servers": {
    "mcp-tools-mcp": {
      "type": "http",
      "url": "https://mcp-tools.takara0408103123.workers.dev/mcp"
    }
  }
}

Gemini CLI

Run this once. It writes .gemini/settings.json in the current project; pass --scope user for ~/.gemini/settings.json.
Gemini CLI configuration
gemini mcp add --transport http mcp-tools-mcp https://mcp-tools.takara0408103123.workers.dev/mcp

Claude Desktop

Merge this into claude_desktop_config.json (macOS: ~/Library/Application Support/Claude/, Windows: %APPDATA%\Claude\), then restart Claude Desktop.
Claude Desktop configuration
{
  "mcpServers": {
    "mcp-tools-mcp": {
      "url": "https://mcp-tools.takara0408103123.workers.dev/mcp"
    }
  }
}

Windsurf

Merge this into ~/.codeium/windsurf/mcp_config.json, then refresh MCP in Cascade. Windsurf remote servers use serverUrl, not url.
Windsurf configuration
{
  "mcpServers": {
    "mcp-tools-mcp": {
      "serverUrl": "https://mcp-tools.takara0408103123.workers.dev/mcp"
    }
  }
}

Let your agent find its tools

Find servers like mcp-tools MCP from your agent. Add Koskamo once to search the index for endpoints, access requirements, and client setup. Public discovery needs no key.