How do I install the winccua mcp server?

Use a recorded configuration for your client, replace example credential values and paths, and verify the documented runtime. Restart or reconnect the client, then inspect the available tools.

What credentials does it need?

It reads `GRAPHQL_URL`, `GRAPHQL_USR`, `GRAPHQL_PWD`, `NODE_TLS_REJECT_UNAUTHORIZED` from the environment. Store these in your client's env block or a secrets manager — never commit them to a repository — and grant the narrowest scope that still covers your use case.

SSyncDev

Start a project

Winccua MCP Server

A Model Context Protocol (MCP) server designed to interface with SIEMENS WinCC Unified SCADA systems via their GraphQL API. This server exposes

Local serverstdio

What is the Winccua MCP Server?

A Model Context Protocol (MCP) server designed to interface with SIEMENS WinCC Unified SCADA systems via their GraphQL API. This server exposes various WinCC

The short version

Connects to a WinCC Unified GraphQL endpoint
Provides MCP tools for:
User authentication (login-user)
Browsing SCADA objects (browse-objects)
Reading current tag values (get-tag-values)
Querying historical/logged tag data (get-logged-tag-values)

What it needs from you

Node.js (v18.x or later recommended). - npm (which typically comes with Node.js). - Access to a running WinCC Unified GraphQL server endpoint.

More MCP options

Compare MCP servers by category, or browse hosted MCP servers if you prefer an endpoint over a local process.

Maintainer setup documentation.

How to install the Winccua MCP Server

{
  "mcpServers": {
    "winccua": {
      "command": "npx",
      "args": ["-y", "@modelcontextprotocol/tools"],
      "env": {
        "GRAPHQL_URL": "your-value",
        "GRAPHQL_USR": "your-value",
        "GRAPHQL_PWD": "your-value",
        "NODE_TLS_REJECT_UNAUTHORIZED": "your-value"
      }
    }
  }
}

Add to claude_desktop_config.json, then restart Claude Desktop.

Configuration

Node.js (v18.x or later recommended). - npm (which typically comes with Node.js). - Access to a running WinCC Unified GraphQL server endpoint.

Variable	Description	Required
GRAPHQL_URL	Endpoint or connection string the server talks to.	Yes
GRAPHQL_USR	Configuration value read at startup.	Optional
GRAPHQL_PWD	Configuration value read at startup.	Optional
NODE_TLS_REJECT_UNAUTHORIZED	Configuration value read at startup.	Optional

Frequently asked questions

A Model Context Protocol (MCP) server designed to interface with SIEMENS WinCC Unified SCADA systems via their GraphQL API. This server exposes various WinCC Confirm the tools offered by your installed version in the connected client. Tool availability and permissions depend on the server and account configuration.

Alternatives to the Winccua MCP Server

Filesystem

Official

Read, search and edit files inside allowed directories with the Model Context Protocol reference Filesystem server.

File Systems & StorageTypeScript★ 63.0k

Context7

Official

Retrieve version-aware library documentation and code examples with Context7 MCP, using resolve-library-id and query-docs.

Documentation & API ReferencesRemoteTypeScript★ 32.0k

Lorcana

Disney Lorcana TCG MCP server with card search, deck analysis, ink curves, and set browsing

Developer ToolsGo

Powershell

The following operations are designed for practical scenarios on Windows systems. macOS users can easily implement this by installing Windows through

Developer ToolsPython

Agent Pm

Planning and orchestration for AI-driven software development

Knowledge & Memory

Kosis-openapi-mcp

Korean official statistics (KOSIS) — tables, metadata and observations

Developer Tools