# Marktstammdatenregister (MaStR)

> Use this tool when you need to access Germany's official energy market data, query power plants, gas facilities, or market actors, and retrieve detailed information on units, grid connections, and market participants through public or authenticated SOAP queries. It solves problems related to energy market research, regulatory compliance, and data analysis by providing a centralized registry of market data. The tool accepts queries and credentials as inputs and returns detailed energy market data as output.

Canonical page: https://skillsregistry.net/skills/mastr-energy  
JSON: https://api.skillsregistry.net/v1/skills/mastr-energy

## Description

This server provides access to Germany's Marktstammdatenregister (MaStR), the official energy market data registry operated by the Bundesnetzagentur (Federal Network Agency). It exposes 21 tools for querying power plants, gas facilities, grid connections, and market actors — with 7 public endpoints requiring no authentication and 14 requiring MaStR credentials for detailed SOAP queries on units, filtered searches, and catalogs.

## Trust

- **Trust score (0–1):** 0.94
- **Verification tier:** verified
- **Last scanned:** 2026-09-28

## Facts

- **Version:** 1.0.0
- **Skill type:** atomic
- **Execution layer:** mcp-remote
- **Runtime environment:** api
- **Category:** security
- **Updated:** 2026-09-28

## Source

- **Source listing:** [PulseMCP](https://www.pulsemcp.com/servers/mastr-energy)
- **Repository:** <https://github.com/ulircs/mastr-mcp-server>

## Use it

Resolve this record through the SkillsRegistry MCP server (no auth, read-only):

```
claude mcp add --transport http --scope user skillsregistry https://api.skillsregistry.net/mcp
```

```json
{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/call",
  "params": {
    "name": "get_skill",
    "arguments": {
      "slug": "mastr-energy"
    }
  }
}
```

REST: `GET https://api.skillsregistry.net/v1/skills/mastr-energy` · pull for local use: `GET https://api.skillsregistry.net/v1/skills/mastr-energy/pull`

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SkillsRegistry indexes agent skills from public registries and GitHub. Skills we have analysed are scanned with Circle-IR and scored on six dimensions; each listing states its scan coverage. More: https://skillsregistry.net/llms.txt