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Zefix Search MCP Server

@zahhar

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トランスポート

stdio

作者

zahhar

投稿者

Zahhar Kirillov

Zefix Search MCP Server について

⚠️ Unofficial MCP server for zefix.ch – Switzerland Central Business Name Index.

Zefix Search MCP Server の設定

以下の設定を使って、このサーバーを MCP 対応クライアントに追加してください。

{
  "mcpServers": {
    "zefix": {
      "command": "npx",
      "args": [
        "-y",
        "zefix-mcp-unofficial"
      ]
    }
  }
}

Zefix Search MCP Server のツール

1

Returns semi-structured markdown text including legal names, address, business identifiers, names of legal representatives, registered capital, mergers and acquisitions, auditor, purpose, former names, and the history of changes for the found company.

概要

What is Zefix Search?

Zefix Search is an unofficial MCP server for zefix.ch – the Switzerland Central Business Name Index. It allows AI assistants to search for companies incorporated in Switzerland by name or UID, with optional filters by canton, legal form, location, and more, and provides full company details including history, capital, and legal representatives.

How to use Zefix Search?

Install the .mcpb file on Claude Desktop or add the npx command to your MCP host config. Once configured, invoke the get_companies tool with parameters such as name_or_uid, cantons, legalForms, exactSearch, and phoneticSearch. The server runs over stdio and requires no authentication.

Key features of Zefix Search

  • Search Swiss companies by name or UID (CHE-nnn.nnn.nnn)
  • Filter by canton, legal form, location, and former names
  • Get full company details including purpose, address, capital, and auditors
  • Supports phonetic and substring/wildcard search
  • Results returned in Markdown with detail level based on result count
  • Capped at 100 results per query

Use cases of Zefix Search

  • Look up a company's registered address and legal representatives
  • Discover all active companies in a specific canton and industry
  • Research company history, mergers, and name changes for due diligence

よくある質問

1

What is Zefix Search and how does it differ from the official zefix.ch website?

Zefix Search is an unofficial MCP server that provides the same search and detail functionality as the Zefix GUI but exposes it as a tool callable by AI assistants. It is not affiliated with or endorsed by the Federal Office of Justice.

2

Does the server require any API keys or authentication?

No. The server queries the public Zefix REST API at `https://www.zefix.ch/ZefixREST/api/v1/` with no authentication required.

3

What runtime or host applications are required?

A host application that supports MCP and an LLM with tool-calling capabilities (e.g., Claude, GPT-4.1+, Gemini, Llama 3.1+). Node.js 24+ is optional and only needed for local development or running from source.

4

What transport protocol does Zefix Search use?

The server communicates over stdio using the standard MCP transport. It does not print anything to the terminal when run directly.

5

Where does the data come from and are there any usage limits?

All data comes from the public Zefix REST API. The server sends a custom `User-Agent: zefix-mcp-unofficial` header for transparency. Results are capped at 100 items per query.

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