Nummeropslag MCP Server: Install & Setup

Install Nummeropslag in Claude Code

MCP Bundle (.mcpb)

Claude Code

curl -LO https://github.com/andrey-tut/nummeropslag-api/releases/download/v1.0.1/nummeropslag-mcp-1.0.1.mcpb

mcp.json (Claude Desktop, Cursor, VS Code, Windsurf)

Download nummeropslag-mcp-1.0.1.mcpb and double-click it to install in Claude Desktop.

MCP Bundles install in one click in Claude Desktop. Download the file, then open it.

Docker

Claude Code

claude mcp add nummeropslag -e NUMMEROPSLAG_API_KEY=... -- docker run -i --rm -e NUMMEROPSLAG_API_KEY ghcr.io/andrey-tut/nummeropslag-mcp:v1.0.1

mcp.json (Claude Desktop, Cursor, VS Code, Windsurf)

{
  "mcpServers": {
    "nummeropslag": {
      "command": "docker",
      "args": [
        "run",
        "-i",
        "--rm",
        "-e",
        "NUMMEROPSLAG_API_KEY",
        "ghcr.io/andrey-tut/nummeropslag-mcp:v1.0.1"
      ],
      "env": {
        "NUMMEROPSLAG_API_KEY": "..."
      }
    }
  }
}

PyPI (uv)

Claude Code

claude mcp add nummeropslag -e NUMMEROPSLAG_API_KEY=... -- uvx nummeropslag-mcp

mcp.json (Claude Desktop, Cursor, VS Code, Windsurf)

{
  "mcpServers": {
    "nummeropslag": {
      "command": "uvx",
      "args": [
        "nummeropslag-mcp"
      ],
      "env": {
        "NUMMEROPSLAG_API_KEY": "..."
      }
    }
  }
}

Replace each ... with your own value.

Frequently asked questions

What does the Nummeropslag MCP server do?

Privacy-first Danish caller ID, CVR company lookup, operator data, and community spam signals.

Is the Nummeropslag MCP server free?

The server is free, but you will likely need an account. The server itself is free, but it connects to a service that needs an account or API key, which may have paid tiers. Check the provider for current pricing.

Does Nummeropslag run locally or remotely?

Local. Runs on your machine (stdio). You install it with npx, uvx, Docker or from source.

How do I add Nummeropslag to Claude Code?

Run: curl -LO https://github.com/andrey-tut/nummeropslag-api/releases/download/v1.0.1/nummeropslag-mcp-1.0.1.mcpb

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