Skip the install. Get this working in under 2 minutes.
Start a free trial on cloud.anythingmcp.com, add the OpenPLZ Germany in one click, then point your AI client (Claude, ChatGPT, Copilot or Cursor) at the generated MCP endpoint. No Docker, no git clone, zero engineering experience required.
Summary
Look up German postal codes, localities, streets, and districts via MCP. Free OpenPLZ adapter in AnythingMCP — no API key, BKG official data.
Try asking
Example prompts for OpenPLZ Germany
Click any prompt to copy it. Paste into Claude, ChatGPT, Cursor, Gemini, Copilot or OpenClaw to run it against this connector.
Claude is AI and can make mistakes. Please double-check responses.
German Postal Code Lookups with AI Agents
OpenPLZ is the free reference API for the German administrative hierarchy — federal states (Bundesländer), districts (Kreise), municipalities (Gemeinden), localities (Orte), postal codes (PLZ), and streets. The data comes from the official Bundesamt für Kartographie und Geodäsie (BKG) and is ideal for address validation, form autocomplete, and regional analytics inside AI workflows.
Quick Setup with Built-in Adapter
OpenPLZ ships with AnythingMCP. The endpoint is free and unauthenticated.
Step 1: Deploy AnythingMCP
git clone https://github.com/HelpCode-ai/anythingmcp.git
cd anythingmcp && docker compose up -d
Step 2: Import the Adapter
Open http://localhost:3000/connectors/store and click Import on OpenPLZ Germany. There are no credentials.
Step 3: Connect to Your AI Agent
{
"mcpServers": {
"openplz": {
"url": "http://localhost:4000/mcp"
}
}
}
Available Tools
| Tool | Description |
|---|---|
openplz_lookup_postalcode | All localities for a 5-digit PLZ |
openplz_search_localities | Search localities by name, optional federal-state filter |
openplz_search_streets | Street autocomplete inside a PLZ or locality |
openplz_list_federal_states | The 16 Bundesländer with their Regional Keys |
openplz_list_districts | All Kreise / kreisfreie Städte for a federal state |
AI Agent Use Cases
- "Which city has the postal code 79098?"
- "List all streets starting with 'Kaiser-Joseph' in Freiburg"
- "Validate this delivery address: Bahnhofstraße 12, 80335 München"
- "Show me the districts of Baden-Württemberg"
Notes
OpenPLZ is rate-limited (~10 req/s soft cap). For bulk processing self-host the OpenPLZ API server — the adapter baseUrl can be overridden after import.
Next Steps
- HERE Geocoding MCP Guide — Forward and reverse geocoding worldwide
- Deutsche Bahn MCP Guide — Train timetables and journeys
Was this guide helpful?
