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OpenPLZ Germany を Gemini に接続する方法 — MCP 経由

Look up German postal codes, localities, and streets via the OpenPLZ API. Free, no authentication, based on the official Bundesanstalt für Kartographie und Geodäsie (BKG) datasets.

HCBy HelpCode teamUpdated 2 min read Open source on GitHub

No credit card · 7-day trial · Self-host alternative available

OpenPLZ Germany

MCP connector

OpenPLZ Germany

Look up German postal codes, localities, and streets via the OpenPLZ API. Free, no authentication, based on the official Bundesanstalt für Kartographie und Geodäsie (BKG) datasets.

Tools

5

Region

DE

Category

Government

Authentication

Public API

Install in one click on Cloud

7-day free trial · No credit card

  • 7-day free trial
    No credit card required
  • GDPR & SOC 2 ready
    EU data residency, audit logs
  • Open-source on GitHub
    Source-available BSL-1.1
  • Works with ChatGPT, Claude, Gemini
    Any MCP-compatible client

No install? Use cloud.anythingmcp.com directly.

Sign in, install the OpenPLZ Germany in one click, paste the credentials, mint an MCP API key — done. No Docker, no git clone, no local server to run.

Open Cloud

TL;DR

Look up German postal codes, localities, and streets via the OpenPLZ API. Free, no authentication, based on the official Bundesanstalt für Kartographie und Geodäsie (BKG) datasets.

💡 インストール不要? cloud.anythingmcp.com を直接利用してください。 サインインし、Connectors → OpenPLZ Germany をクリック、認証情報を貼り付け、MCP API キーを発行 — 完了です。Docker も git clone もローカルサーバーも不要。

OpenPLZ Germany + Gemini

Look up German postal codes, localities, and streets via the OpenPLZ API. Free, no authentication, based on the official Bundesanstalt für Kartographie und Geodäsie (BKG) datasets.

前提条件

完全なセットアップ手順はコネクタ自体に組み込まれています (ストアでコネクタを選択すると表示)。必要な環境変数:

(none — public API)

ステップ 1 — 認証情報を取得

This connector wraps the free OpenPLZ API for German administrative structure lookups. Useful for address validation, form autocomplete, and regional analytics.

Hierarchy: Germany → Federal state (Bundesland) → District (Kreis) → Municipality (Gemeinde) → Locality (Ort) + postal code (PLZ).

No authentication required. OpenPLZ is rate-limited (soft limit ~10 req/s) — for bulk work consider self-hosting.

Common flows:

  • Postal code → localities: openplz_lookup_postalcode
  • City + street autocomplete: openplz_search_streets
  • Full town info by AGS (Amtlicher Gemeindeschlüssel): openplz_get_locality

ステップ 2 — アダプターをインストール

git clone https://github.com/HelpCode-ai/anythingmcp.git
cd anythingmcp && docker compose up -d

ステップ 3 — Gemini にコネクタを追加

Gemini CLI は ~/.gemini/settings.json (Windows は %APPDATA%\gemini\settings.json) から MCP サーバを読み込みます。追加:

{
  "mcpServers": {
    "anythingmcp": {
      "httpUrl": "https://cloud.anythingmcp.com/mcp",
      "headers": { "Authorization": "Bearer YOUR_MCP_API_KEY" }
    }
  }
}
  1. AnythingMCP の Profile → MCP API Keys → New KeyMCP API key を取得。
  2. ファイルを保存し gemini を再起動。
  3. Gemini CLI で /mcp を実行 — OpenPLZ Germany が利用可能として表示されます。
  4. Vertex AI Studio: 同じ Bearer ヘッダーで https://cloud.anythingmcp.com/mcp をリクエストの tools 配列に渡してください。

利用可能なツール

ToolWhat it does
openplz_lookup_postalcodeLook up all localities associated with a German postal code (PLZ)
openplz_search_localitiesSearch localities by name, optionally filtered by federal state
openplz_search_streetsSearch streets within a locality
openplz_list_federal_statesList all 16 German federal states (Bundesländer) with their Regional Key (RS), name, and seat of government
openplz_list_districtsList all districts (Kreise/kreisfreie Städte) of a federal state

FAQ

Gemini 1.5 Pro / 2.x は MCP をサポートしますか? はい — Gemini CLI ≥ 0.4 と Vertex AI tools API は Bearer ヘッダー付きの httpUrl MCP コネクタを受け入れます。

次のステップ

このガイドは役に立ちましたか?

Ready to ship

Your OpenPLZ agent is one click away.

Install the connector, paste the key, prompt Gemini. Free for 7 days, no credit card.

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