# WinCC Unified MCP XT

> Use this tool when you need to integrate AI assistants with SIEMENS WinCC Unified SCADA systems to manage real-time and historical tag data, perform alarm management tasks, and interact with SCADA objects. It provides a GraphQL interface for browsing, reading, and writing tag values, as well as fetching, acknowledging, and resetting alarms. Ideal for use cases requiring real-time monitoring, automation, and data analysis in industrial control systems.

Canonical page: https://skillsregistry.net/skills/mrwan84-wincc-unified-mcp-xt  
JSON: https://api.skillsregistry.net/v1/skills/mrwan84-wincc-unified-mcp-xt

## Description

An MCP server that interfaces with SIEMENS WinCC Unified SCADA systems via GraphQL to manage real-time and historical tag data. It enables AI assistants to browse SCADA objects, read or write tag values, and perform alarm management tasks such as fetching, acknowledging, and resetting alarms.

## Trust

- **Trust score (0–1):** 0.69
- **Verification tier:** scanned
- **Last scanned:** 2026-09-02

## Facts

- **Version:** 1.0.0
- **Skill type:** atomic
- **Execution layer:** mcp-remote
- **Runtime environment:** api
- **Category:** productivity
- **Updated:** 2026-09-02

## Source

- **Source listing:** [Glama](https://glama.ai/mcp/servers/t0ykpjpvhf)
- **Repository:** <https://github.com/mrwan84/WinCC-Unified-MCP-XT>

## 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": "mrwan84-wincc-unified-mcp-xt"
    }
  }
}
```

REST: `GET https://api.skillsregistry.net/v1/skills/mrwan84-wincc-unified-mcp-xt` · pull for local use: `GET https://api.skillsregistry.net/v1/skills/mrwan84-wincc-unified-mcp-xt/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