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MaStR MCP Server

io.github.UliRCS/mastr-mcp-server · v1.0.1

MCP server for the German Marktstammdatenregister (MaStR) energy market register

Connect Runs on your machine

Terminal
claude mcp add mastr-mcp-server -e MASTR_USER=<MASTR_USER> -e MASTR_TOKEN=<MASTR_TOKEN> -- uvx mastr-mcp-server==1.0.1
claude_desktop_config.json
{
  "mcpServers": {
    "mastr-mcp-server": {
      "command": "uvx",
      "args": [
        "mastr-mcp-server==1.0.1"
      ],
      "env": {
        "MASTR_USER": "<MASTR_USER>",
        "MASTR_TOKEN": "<MASTR_TOKEN>"
      }
    }
  }
}
~/.cursor/mcp.json
{
  "mcpServers": {
    "mastr-mcp-server": {
      "command": "uvx",
      "args": [
        "mastr-mcp-server==1.0.1"
      ],
      "env": {
        "MASTR_USER": "<MASTR_USER>",
        "MASTR_TOKEN": "<MASTR_TOKEN>"
      }
    }
  }
}
.vscode/mcp.json
{
  "servers": {
    "mastr-mcp-server": {
      "type": "stdio",
      "command": "uvx",
      "args": [
        "mastr-mcp-server==1.0.1"
      ],
      "env": {
        "MASTR_USER": "<MASTR_USER>",
        "MASTR_TOKEN": "<MASTR_TOKEN>"
      }
    }
  }
}

Replace the values in angle brackets with your own. Keys stay on your machine; we never see them.

Tools

This server runs locally, so its tools are listed by your MCP client once it starts.

Environment variables

NameDescription
MASTR_USER
Optional
MaStR Marktakteur number (SOM/SEM...) for SOAP API access. Without credentials, only 7 public tools are available.
MASTR_TOKEN
Optional, secret
MaStR web service token (~540 chars) for SOAP API access. Enables 14 additional SOAP tools.

Details

Package[email protected] (PYPI, stdio)
First published15 Apr 2026
Last updated15 Apr 2026
Registry nameio.github.UliRCS/mastr-mcp-server

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