# MaStR MCP Server

> Use this tool when you need to manage and process data for the German energy market register, Marktstammdatenregister (MaStR). It solves problems related to data registration, validation, and synchronization, providing a centralized server for Market Participant Cooperation (MCP). The MaStR MCP Server takes in energy market data as input and outputs validated and registered data, ideal for use cases involving energy market registration and compliance in Germany.

Canonical page: https://skillsregistry.net/skills/io-github-ulircs-mastr-mcp-server  
JSON: https://api.skillsregistry.net/v1/skills/io-github-ulircs-mastr-mcp-server

## Description

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

## Trust

- **Trust score (0–1):** 0.94
- **Verification tier:** verified
- **Last scanned:** 2026-09-19

## Facts

- **Version:** 1.0.1
- **Skill type:** atomic
- **Execution layer:** mcp-remote
- **Runtime environment:** api
- **Category:** other
- **Updated:** 2026-09-19

## Source

- **Source listing:** [MCP Registry](https://registry.modelcontextprotocol.io/v0/servers/io.github.UliRCS%2Fmastr-mcp-server)
- **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": "io-github-ulircs-mastr-mcp-server"
    }
  }
}
```

REST: `GET https://api.skillsregistry.net/v1/skills/io-github-ulircs-mastr-mcp-server` · pull for local use: `GET https://api.skillsregistry.net/v1/skills/io-github-ulircs-mastr-mcp-server/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