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Cómo conectar OpenPLZ Germany a ChatGPT — via MCP

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

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

💡 ¿Sin instalación? Usa cloud.anythingmcp.com directamente. Inicia sesión, pulsa Connectors → OpenPLZ Germany, pega tus credenciales, genera una MCP API key — listo. Sin Docker, sin git clone, sin servidor local.

OpenPLZ Germany + ChatGPT

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.

Requisitos previos

Las instrucciones de configuración completas están incluidas en el conector (visibles en el store al seleccionarlo). Las variables de entorno requeridas:

(none — public API)

Paso 1 — Obtener credenciales

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

Paso 2 — Instalar el adapter

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

Paso 3 — Añadir el conector en ChatGPT

ChatGPT soporta servidores MCP a través de la función Connectors (planes Plus / Pro / Team / Enterprise). El plan gratuito no admite conectores personalizados.

  1. Abre ChatGPT → Settings → Connectors (o pulsa el icono 🔧 en el composer → Manage connectors).
  2. Pulsa "Add custom connector".
  3. Rellena:
    • Name: OpenPLZ Germany
    • MCP server URL: https://cloud.anythingmcp.com/mcp
    • Authentication: Bearer token → pega tu MCP API key (de AnythingMCP → Profile → MCP API Keys → New Key)
  4. Pulsa Connect para autorizar.

Herramientas disponibles

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

¿Funciona el plan gratuito de ChatGPT con los Connectors MCP personalizados? No — se necesita Plus, Pro, Team o Enterprise.

Siguientes pasos

Ready to ship

Your OpenPLZ agent is one click away.

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