Eigenheim Invest – Berlin Real Estate Market

Eigenheim Invest – Berlin Real Estate Market MCP

TL;DR – A free, public, read-only MCP server with live Berlin property prices (€/m² for apartments and houses across all 97 Berlin localities), rental yields, 2026 standard land values (Bodenrichtwerte), population forecast 2040, official notary transaction data and current listings from Eigenheim Invest.

- Endpoint: https://eigenheim-invest.de/mcp/ (Streamable HTTP)

- Auth: none – no API key, no login

- Works with: Claude (Desktop, Code, Web), ChatGPT (Apps / Plugins), OpenAI Codex, Cursor, VS Code

- MCP Registry ID: io.github.magicSEO/eigenheim-mcp (official MCP Registry)

- Live data page: eigenheim-invest.de/immobilienpreise-berlin/

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Contents

1. Quick start · Plugins
2. Screenshots
3. What can you ask?
4. Available tools
5. Data sources
6. Privacy & usage
7. About

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Quick start

Claude Code

claude mcp add --transport http eigenheim https://eigenheim-invest.de/mcp/

Or install it as a Claude Code plugin:

/plugin install eigenheim-market --marketplace magicSEO/eigenheim-mcp

Claude Desktop / Claude.ai

Settings → Connectors → Add custom connector

• Name: Eigenheim Invest Market
• URL: https://eigenheim-invest.de/mcp/

OpenAI Codex CLI

codex mcp add eigenheim --url https://eigenheim-invest.de/mcp/

or in ~/.codex/config.toml:

[mcp_servers.eigenheim]

url = "https://eigenheim-invest.de/mcp/"

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Plugins

This repository is also a ready-to-install plugin for Claude Code and OpenAI Codex. Both plugins connect to the same read-only MCP server and add the skill berlin-market-data (always quote source and date, never invent numbers).

Claude Code plugin

/plugin marketplace add magicSEO/eigenheim-mcp

/plugin install eigenheim-market@eigenheim-invest

Codex plugin

Install from the awesome-codex-plugins marketplace once listed, or clone this repository and add it as a local plugin in Codex. Quality check: HOL AI Plugin Scanner 3.49.0 – 100/100, no findings.

Security policy: SECURITY.md

ChatGPT (Apps / Plugins)

Custom GPTs retire on 11 Dec 2026. This server is MCP-native, so it works as a ChatGPT app (plugin) without any extra API. Submission to the ChatGPT app directory: see chatgpt-app/SUBMISSION.md.

1. Settings → Apps (or Plugins) → Advanced settings → enable Developer mode.
2. Create app:

• Name: Eigenheim Invest Market
• MCP Server URL: https://eigenheim-invest.de/mcp/
• Authentication: No authentication

1. In a new chat, select the app via + → Developer mode and ask your question.

Cursor (.cursor/mcp.json)

{

"mcpServers": { "eigenheim": { "url": "https://eigenheim-invest.de/mcp/" } } }

VS Code (.vscode/mcp.json)

{

"servers": { "eigenheim": { "type": "http", "url": "https://eigenheim-invest.de/mcp/" } } }

Tip: Use the URL with trailing slash (/mcp/). Without it the server redirects, which some clients do not follow.

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Screenshots

Real responses from the live server (captured 16 Oct 2026):

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What can you ask?

Ask in English or German – the assistant picks the right tool.

Prices & trends

• *"What is the average price per m² for apartments and houses in Zehlendorf compared to Berlin?"*
• *„Was kostet ein Quadratmeter in Prenzlauer Berg aktuell?"*
• *"Which Berlin neighbourhood is the most expensive for apartments right now?"*

Rental yield & investment

• *"Calculate the gross rental yield and price multiplier for an apartment in Steglitz."*
• *„Lohnt sich eine Wohnung in Neukölln als Kapitalanlage? Rechne mit 5.000 €/m² und 14 € Miete."*

Land values (Bodenrichtwerte 2026)

• *"What are the 2026 standard land values in Dahlem and Nikolassee?"*
• *„Wie hoch ist der Bodenrichtwert in Wannsee?"*

Market & demographics

• *"How many notarised property sales were there in Berlin in H1 2026?"*
• *"Which Berlin localities have the highest and lowest apartment prices right now?"*
• *„Welche Bezirke wachsen laut Senatsprognose bis 2040 am stärksten?"*

Listings

• *"Are there houses for sale in Berlin Southwest or Falkensee?"*
• *„Zeig mir Wohnungen unter 600.000 € mit mindestens 3 Zimmern."*

Guides

• *"What are the closing costs (Kaufnebenkosten) when buying in Berlin?"*
• *„Was muss ich beim Verkauf einer geerbten Immobilie beachten?"*

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Available tools

All tools are read-only. Every answer includes source, date and a link to the matching page on eigenheim-invest.de.

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Data sources

• Asking prices: Rankimmo, updated daily (offer data, not notarised prices)
• Rents: IBB Wohnungsmarktbericht 2025
• Population forecast: Senatsverwaltung Berlin, Bevölkerungsprognose 2024–2040
• Notary transactions: Gutachterausschuss Berlin, market report H1 2026
• Land values: Bodenrichtwerte 2026
• Listings: Eigenheim Invest (current active offers)

Methodology: eigenheim-invest.de/immobilienpreise-berlin/#datenquellen

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Privacy & usage

• No API key, no tracking of prompts, no personal data.
• Listings show only public marketing information – no exact addresses, no seller data.
• Free for personal and commercial use. Please cite *Eigenheim Invest* with a link when publishing figures.
• Values are market indicators, not a valuation. For a property-specific value use the free valuation.

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About

Eigenheim Invest is a real estate agency for Berlin Southwest and the surrounding Brandenburg area (Zehlendorf, Dahlem, Nikolassee, Schlachtensee, Wannsee, Kladow, Falkensee, Teltow, Stahnsdorf, Kleinmachnow, Michendorf).

• Website: eigenheim-invest.de
• Berlin property prices by district: eigenheim-invest.de/immobilienpreise-berlin/
• Free valuation: eigenheim-invest.de/immobilienbewertung/
• Contact: info@eigenheim-invest.de

License

Plugin and configuration files: MIT. Documentation and market data: CC BY 4.0 (attribution: Eigenheim Invest). Data remains property of the respective sources.