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.
AnythingMCP is listed in Claude's connector directory: add it to Claude in one click (opens in a new tab), then sign in and choose which MCP servers Claude may use.
Summary
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.
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.
💡 No install? Use cloud.anythingmcp.com directly. Sign in, click Connectors → OpenPLZ Germany, paste your credentials, mint an MCP API key — done. No Docker, no
git clone, no local server.
OpenPLZ Germany + Claude
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.
Prerequisites
See the full setup instructions baked into the connector (visible in the in-app store when you select the connector). The required environment variables for this connector are:
(none — public API)
Step 1 — Get credentials
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
Step 2 — Install the adapter
curl -fsSL https://raw.githubusercontent.com/HelpCode-ai/anythingmcp/main/docker-compose.quickstart.yml -o docker-compose.yml
printf 'JWT_SECRET=%s\nENCRYPTION_KEY=%s\n' "$(openssl rand -hex 32)" "$(openssl rand -hex 32)" > .env
docker compose up -d
Step 3 — Add the connector in Claude
Your server URL: in AnythingMCP, open MCP Servers → the server this connector is on, and copy its URL (
https://cloud.anythingmcp.com/mcp/…). Use it wherever this guide showsYOUR_SERVER_ID.
Recommended path — works on claude.ai web without editing any config file.
- In Claude, open Customize → Connectors.
- Click +, then Add custom connector.
- Enter a name, e.g.
OpenPLZ Germany, and the remote MCP server URLhttps://cloud.anythingmcp.com/mcp/YOUR_SERVER_ID, then click Add. - Click Connect and sign in to AnythingMCP (OAuth) to allow access.
All tools below appear in your chat — start typing prompts.
Available tools
| Tool | What it does |
|---|---|
openplz_lookup_postalcode | Look up all localities associated with a German postal code (PLZ) |
openplz_search_localities | Search localities by name, optionally filtered by federal state |
openplz_search_streets | Search streets within a locality |
openplz_list_federal_states | List all 16 German federal states (Bundesländer) with their Regional Key (RS), name, and seat of government |
openplz_list_districts | List all districts (Kreise/kreisfreie Städte) of a federal state |
FAQ
Does it work with Claude Code as well as Claude Desktop? Yes — point both at https://cloud.anythingmcp.com/mcp/YOUR_SERVER_ID.
Next steps
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