window-cap-mcp
Click on "Install Server".
Wait a few minutes for the server to deploy. Once ready, it will show a "Started" state.
In the chat, type
@followed by the MCP server name and your instructions, e.g., "@window-cap-mcptake a screenshot of my primary monitor"
That's it! The server will respond to your query, and you can continue using it as needed.
Here is a step-by-step guide with screenshots.
Window Capture MCP Server
A cross-platform window screenshot MCP server and library implemented in Rust, based on rmcp and xcap.
Features
Get monitor count and details
Capture screenshots of monitors and windows
List and close windows
Cross-platform support (Windows, macOS, Linux)
Supports multiple transport modes (STDIO, SSE, HTTP)
Available as Rust library and Python package
Related MCP server: Computer Use MCP
Installation
As MCP Server
# Build from source
make build
make runAs Python Package
pip install window-cap-mcpAs Rust Library
[dependencies]
window_cap_mcp_lib = "0.1"Usage
MCP Server
# STDIO mode (for Claude Desktop)
window-cap-mcp
# SSE mode
window-cap-mcp --sse --port 3000
# HTTP mode
window-cap-mcp --http --port 8080Python Library
import window_cap_mcp as wc
# Capture monitor screenshot
screenshot = wc.capture_monitor()
# Run as MCP server
wc.run_server()Rust Library
use window_cap_mcp_lib::{Monitor, Window};
fn main() -> Result<(), Box<dyn std::error::Error>> {
let monitors = Monitor::all()?;
monitors[0].capture_image()?.save("screenshot.png")?;
Ok(())
}Claude Desktop Configuration
Edit the configuration file:
Windows:
%APPDATA%\Claude\claude_desktop_config.jsonmacOS/Linux:
~/.config/Claude/claude_desktop_config.json
{
"mcpServers": {
"window-cap": {
"command": "window-cap-mcp"
}
}
}MCP Tools
get_monitor_count
Get monitor information.
{
"count": 2,
"monitors": [
{
"index": 0,
"name": "Display 1",
"width": 1920,
"height": 1080,
"is_primary": true
}
]
}get_screen_screenshot
Capture monitor screenshot (Base64-encoded PNG).
Parameters: monitor_index (optional)
get_window_list
Get all windows information.
{
"count": 5,
"windows": [
{
"id": 12345,
"title": "VS Code",
"app_name": "Code.exe",
"width": 1280,
"height": 720
}
]
}get_window_screenshot
Capture window screenshot (Base64-encoded PNG).
Parameters: window_id (required)
close_window
Close a window by ID.
Parameters: window_id (required)
Development
make help # View commands
make build # Build project
make test # Run tests
make clean # Clean artifactsLicense
This server cannot be installed
Maintenance
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