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MCP server for controlling Mac monitors via DisplayBuddy — adjust brightness and more.
About
MCP server for controlling Mac monitors via DisplayBuddy — adjust brightness and more.
Security Report
7.7
Moderate7.7Low RiskValid MCP server (2 strong, 4 medium validity signals). 2 known CVEs in dependencies (0 critical, 2 high severity) ⚠️ Package registry links to a different repository than scanned source. Imported from the Official MCP Registry. 1 finding(s) downgraded by scanner intelligence.
3 files analyzed · 3 issues found
Security scores are indicators to help you make informed decisions, not guarantees. Always review permissions before connecting any MCP server.
Permissions Required
This plugin requests these system permissions. Most are normal for its category.
How to Install
Add this to your MCP configuration file:
{
"mcpServers": {
"io-github-biocross-displaybuddy-mcp": {
"args": [
"-y",
"displaybuddy-mcp"
],
"command": "npx"
}
}
}Documentation
View on GitHubFrom the project's GitHub README.
DisplayBuddy MCP Server
An MCP (Model Context Protocol) server that lets AI agents control Mac monitors via DisplayBuddy — adjust brightness, contrast, volume, input source, apply presets, sync displays, and more.
Works with Claude Desktop, Cursor, Windsurf, Cline, and any MCP-compatible client.
Prerequisites
- macOS with DisplayBuddy installed and running
- DisplayBuddy CLI installed: open DisplayBuddy > Settings > General > Install CLI Tool
- Node.js 18+
Installation
Claude Desktop
Add to your claude_desktop_config.json:
{
"mcpServers": {
"displaybuddy": {
"command": "npx",
"args": ["-y", "displaybuddy-mcp"]
}
}
}
Cursor
Add to your MCP settings:
{
"mcpServers": {
"displaybuddy": {
"command": "npx",
"args": ["-y", "displaybuddy-mcp"]
}
}
}
Smithery
npx -y @smithery/cli install displaybuddy-mcp --client claude
Available Tools
| Tool | Description |
|---|---|
displaybuddy_status | Quick overview of all displays (call this first) |
displaybuddy_list | Full display details including UUID, type, capabilities |
displaybuddy_get | Get properties of a specific display |
displaybuddy_set | Set brightness, contrast, volume, input, rotation |
displaybuddy_preset_list | List saved presets |
displaybuddy_preset_activate | Activate a preset (with optional delay) |
displaybuddy_schedule_list | List automation schedules |
displaybuddy_schedule_toggle | Enable or disable a schedule |
displaybuddy_sync | Check/enable/disable multi-display sync |
Example Prompts
Once connected, you can ask your AI assistant things like:
- "Dim all my monitors to 30%"
- "What displays are connected?"
- "Switch my Dell monitor to HDMI"
- "Activate my Night Mode preset"
- "Sync all displays to my main monitor"
- "Turn up the brightness on my external display"
- "Set up my coding environment — brightness 70, contrast 60"
How It Works
The MCP server wraps the displaybuddy CLI, which communicates with the running DisplayBuddy app via URL scheme. All operations are local — no data leaves your machine.
AI Agent → MCP Server → displaybuddy CLI → DisplayBuddy App → Your Monitors
Development
npm install
npm run build
# Test with MCP Inspector
npx -y @modelcontextprotocol/inspector node ./build/index.js
License
MIT
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