mcpField
M
Monumenten

Monumenten

Local
github.com/woonstadrotterdamLegal & Government2Updated 6w ago
Repository

About Monumenten

Monumenten is an MCP server for Dutch addresses and housing valuation workflows. It resolves addresses to BAG verblijfsobject IDs and checks national and municipal heritage designations.

Key features

  1. 01Resolve addresses to BAG IDs
  2. 02Check national monument status
  3. 03Identify protected townscapes
  4. 04Handle house letters and suffixes

Use cases

  1. 01Check whether a rental property is a national monument
  2. 02Find a BAG identifier from a postcode and house number
  3. 03Support Dutch rental-point assessments

MCP support

The MCP server exposes address-to-ID lookup and heritage-status tools to clients, returning structured results.

Configuration

Local server config is the same for every client. Copy it into your client’s MCP config file.

mcp.json · Universal config
{
  "mcpServers": {
    "woonstadrotterdam-monumenten": {
      "command": "uvx",
      "args": [
        "mcp-monumenten"
      ]
    }
  }
}
Run commanduvx mcp-monumenten

Local servers need a runtime on your machine (e.g. Node.js 18+). Config file locations differ by client; see your client’s docs.

Packages
pypimcp-monumenten3.0.1

Tools

2

Saved tool list · updated 2w ago

ParameterTypeRequiredDescription
cityanyNoCity name for search mode 2, e.g. 'Rotterdam'
streetanyNoStreet name for search mode 2, e.g. 'Coolsingel'
postal_codeanyNoDutch postal code for search mode 1, e.g. '1234AB'
house_letteranyNoHouse letter, e.g. 'A' in '30A'
house_numberstringYesThe house number, e.g. '30'
house_suffixanyNoHouse number suffix/addition, e.g. '2' in '30-2'

Details

From the project README

Monumenten MCP Server 🏛️

A Model Context Protocol (MCP) server that enables AI assistants to check monumental status of Dutch addresses relevant for woningwaardering (rent-point system). Connects to the Dutch BAG (Basisadministratie Adressen en Gebouwen) data and Ministry of Cultural Heritage (Rijksdienst voor het Cultureel Erfgoed) to identify national monuments, nationally protected cityscapes, and municipal monuments.

Built on the MCP Python SDK v2 (MCPServer). Tools return structured results; validation and lookup failures raise ToolError (is_error=true) so the model can retry.

Requires Python 3.11+.

Note

This MCP server is based on the monumenten package. For more information, see the monumenten package.

What This Does

This MCP server allows AI assistants to:

  • 🏠 Find verblijfsobject IDs - Convert Dutch addresses to BAG identifiers (verblijfsobject_id)
  • 🏛️ Check monumental status - Determine if a property is protected as cultural heritage
  • 📍 Support flexible address input - Search by postal code + house number or full address
  • 🔍 Handle address variations - Support house letters and suffixes (30A, 30-2, etc.)
Available Tools
ToolParametersResult
get_verblijfsobject_idhouse_number, postal_code OR street + house_number + city, optional house_letter, house_suffixStructured matches list of BAG verblijfsobject records
get_monumental_statusbag_verblijfsobject_id (16 digits)Structured monumental status (provincie, rijksmonument, rijksbeschermd stads-/dorpsgezicht, municipal monument; provinciaal_monument is always null)

Quick Setup

Add to your AI assistant's MCP configuration:

{
  "mcpServers": {
    "monumenten": {
      "command": "uvx",
      "args": ["mcp-monumenten"]
    }
  }
}

For local development:

{
  "mcpServers": {
    "monumenten": {
      "command": "uv",
      "args": ["run", "--project", "/path/to/mcp-monumenten", "mcp-monumenten"]
    }
  }
}

Streamable HTTP (mcp-monumenten --http) listens on http://127.0.0.1:8000/mcp by default.

Claude Code plugin

Requires uv. Then:

/plugin marketplace add woonstadrotterdam/mcp-monumenten
/plugin install monumenten@woonstad-rotterdam

Or add the server directly: claude mcp add monumenten -- uvx mcp-monumenten.

Usage Examples

Finding Monumental Status

"What is the monumental status of Coolsingel 30, Rotterdam?"

The AI will:

  1. Convert the address to a BAG verblijfsobject ID
  2. Check monument registries
  3. Report rijksmonument status, rijksbeschermd stads-/dorpsgezicht, or municipal monument designation

"Is 1234AB 30-2 a rijksmonument?"

The AI can handle:

  • Postal code + house number format
  • House number suffixes (30-2, 30A, etc.)
  • Direct verblijfsobject ID lookups
Address Flexibility

The server handles Dutch address formats:

  • 1234AB 30 - Basic postal code + house number
  • 1234AB 30-2 - With house number suffix
  • 1234AB 30A - With house letter
  • Coolsingel 30, Rotterdam - Full street address

Installation

Via uvx (Recommended)
uvx mcp-monumenten
Local Development
git clone https://github.com/woonstadrotterdam/mcp-monumenten.git
cd mcp-monumenten
uv sync
uv run --project . mcp-monumenten

Data Sources

License

MIT License - see LICENSE file for details.

Comments

Markdown supported

New to MCP?

From what the protocol is to installing your first server, these answers cover most first questions.

An open protocol that defines how AI applications connect to external tools and data in a uniform way. Clients talk to the model; MCP servers provide tools, resources and prompt templates. They exchange standard messages, so one server can be reused by many clients.