Lightweight MCP Server for interacting with Windows Operating System.
Most file and storage access work still happens through a UI a human drives. Windows MCP server moves it into the conversation instead. Lightweight MCP Server for interacting with Windows Operating System.
Install it as a background task that starts now and at every login:
The server publishes 14 tools. What each one is for:
Windows — MCP reached 2M+ Users in Claude Desktop ExtensiosnReal — Time Interaction**Transport — Commandsse — serve --transport sse --host HOST --port PORTstreamable-http — serve --transport streamable-http --host HOST --port PORTVariable — DefaultWINDOWS_MCP_SCREENSHOT_SCALE — 1.0WINDOWS_MCP_SCREENSHOT_BACKEND — autoWINDOWS_MCP_PROFILE_SNAPSHOT — (disabled)WINDOWS_MCP_DISABLE_FLASH — (disabled)WINDOWS_MCP_AUTH_KEY — (none)WINDOWS_MCP_IP_ALLOWLIST — (none)Configuration is passed through the environment: WINDOWS_MCP_AUTH_KEY, WINDOWS_MCP_OAUTH_CLIENT_ID, WINDOWS_MCP_OAUTH_CLIENT_SECRET, POSTHOG_API_KEY, POSTHOG_HOST. Treat anything key-shaped as a real credential — scope it to the minimum the server needs, and rotate it if it ever lands in a shared config.
pip install uv or curl -LsSf https://astral.sh/uv/install.sh | sh - English as the default language in Windows preferred else disable the App-Tool in the MCP Server for Windows with other languages.Because this one is hosted, setup is mostly authentication — you point your client at the endpoint and approve access. Nothing runs on your machine, so there is no runtime to keep patched.
Plenty of file and storage access servers cover similar ground. The differences that matter in practice are scope of access and how much setup stands between you and a working tool call. Windows's toolset — Windows, Real, Transport and 11 more — is a fair guide to whether it matches your workflow.
SyncDev reviews every entry in this directory against the project's own documentation before publishing, and revisits them as servers change.
| Tool | What it does |
|---|---|
| Windows | MCP reached 2M+ Users in [Claude Desktop Extensiosn](https://claude.ai/directory). |
| Real | Time Interaction** |
| Transport | Command |
| sse | serve --transport sse --host HOST --port PORT |
| streamable-http | serve --transport streamable-http --host HOST --port PORT |
| Variable | Default |
| WINDOWS_MCP_SCREENSHOT_SCALE | 1.0 |
| WINDOWS_MCP_SCREENSHOT_BACKEND | auto |
| WINDOWS_MCP_PROFILE_SNAPSHOT | _(disabled)_ |
| WINDOWS_MCP_DISABLE_FLASH | _(disabled)_ |
| WINDOWS_MCP_AUTH_KEY | _(none)_ |
| WINDOWS_MCP_IP_ALLOWLIST | _(none)_ |
| WINDOWS_MCP_CORS_ORIGINS | _(none)_ |
| WINDOWS_MCP_TOOLS | _(all enabled)_ |
**Option B: Using uvx**
```json
{
"mcpServers": {
"windows-mcp": {
"command": "C:\\Users\\<user>\\.local\\bin\\uvx.exe",
"args": ["windows-mcp", "serve"]
}
}
}Configuration as documented by the project. Restart the client after saving.
pip install uv or curl -LsSf https://astral.sh/uv/install.sh | sh - English as the default language in Windows preferred else disable the App-Tool in the MCP Server for Windows with other languages.| Variable | Description | Required |
|---|---|---|
| WINDOWS_MCP_AUTH_KEY | Credential the server authenticates with. | Yes |
| WINDOWS_MCP_OAUTH_CLIENT_ID | Configuration value read at startup. | Optional |
| WINDOWS_MCP_OAUTH_CLIENT_SECRET | Credential the server authenticates with. | Yes |
| POSTHOG_API_KEY | Credential the server authenticates with. | Yes |
| POSTHOG_HOST | Endpoint or connection string the server talks to. | Optional |
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