mediar-ai/terminator

  

Computer Use MCP that controls your entire desktop

Give AI assistants (Claude, Cursor, VS Code, etc.) the ability to control your desktop and automate tasks across any application.

Claude Code (one-liner):

claude mcp add terminator "npx -y terminator-mcp-agent@latest"

Other clients (Cursor, VS Code, Windsurf, etc.):

Add to your MCP config file:

{
  "mcpServers": {
    "terminator-mcp-agent": {
      "command": "npx",
      "args": ["-y", "terminator-mcp-agent@latest"],
      "env": {
        "LOG_LEVEL": "info",
        "RUST_BACKTRACE": "1"
      }
    }
  }
}

See the MCP Agent README for detailed setup instructions.

Why Terminator MCP?

• Uses your browser session - no need to relogin, keeps all your cookies and auth
• Doesn’t take over your cursor or keyboard - runs in the background without interrupting your work
• Works across all dimensions - pixels, DOM, and Accessibility tree for maximum reliability

Use Cases

• Create a new instance on GCP, connect to it using CLI
• Check logs on Vercel to find most common errors
• Test my app new features based on recent commits

What’s new

• 01/09/26 - Mediar IDE (Cursor for Windows automation) is in public access - download now
• 10/30 Public alpha is live - Cursor for Windows automation
• 09/26 Terminator was on Cohere Labs podcast, also check the slides
• 08/25 Big release — NodeJS SDK in YAML workflows, run JS in browser, OS event recording → YAML generation in MCP, and more
• 08/25 we raised $2.8m to give AI hands to every desktop

Why Terminator

For Developers

• Create automations that work across any desktop app or browser
• Runs 100x faster than ChatGPT Agents, Claude, Perplexity Comet, BrowserBase, BrowserUse (deterministic, CPU speed, with AI recovery)

• 95% success rate unlike most computer use overhyped products

• MIT-licensed — fork it, ship it, no lock-in

We achieve this by pre-training workflows as deterministic code, and calling AI only when recovery is needed.

For Teams

Our public beta workflow builder + managed hosting:

• Record, map your processes, and implement the workflow without technical skills
• Deploy AI to execute them at >95% success rate without managing hundreds of Windows VMs
• Kill repetitive work without legacy RPA complexity, implementation and maintenance cost

Feature Support

Terminator currently supports Windows only. macOS and Linux are not supported.

Feature	Windows	macOS	Linux	Notes
Core Automation
Element Locators	Yes	No	No	Find elements by name, role, window, etc.
UI Actions (click, type)	Yes	No	No	Core interactions with UI elements.
Application Management	Yes	No	No	Launch, list, and manage applications.
Window Management	Yes	No	No	Get active window, list windows.
Advanced Features
Browser Automation	Yes	No	No	Chrome extension enables browser control.
Workflow Recording	Yes	No	No	Record human workflows for deterministic automation.
Monitor Management	Yes	No	No	Multi-display support.
Screen & Element Capture	Yes	No	No	Take screenshots of displays or elements.
Libraries
Python (terminator.py)	Partial	No	No	pip install terminator
TypeScript (@mediar-ai/terminator)	Yes	No	No	npm i @mediar-ai/terminator
Workflow (@mediar-ai/workflow)	Yes	No	No	npm i @mediar-ai/workflow
CLI (@mediar-ai/cli)	Yes	No	No	npm i @mediar-ai/cli
KV (@mediar-ai/kv)	Yes	No	No	npm i @mediar-ai/kv
MCP (terminator-mcp-agent)	Yes	No	No	npx -y terminator-mcp-agent --add-to-app [app]
Rust (terminator-rs)	Yes	No	No	cargo add terminator-rs

Legend:

• Yes: Supported - The feature is stable and well-tested.
• Partial: Partial / Experimental - The feature is in development and may have limitations.
• No: Not available on this platform.

How to Inspect Accessibility Elements (like name:Seven)

To create reliable selectors (e.g. name:Seven, role:Button, window:Calculator), you need to inspect the Windows Accessibility Tree:

Windows

• Tool: Accessibility Insights for Windows
• Alt: Inspect.exe (comes with Windows SDK)
• Usage: Open the app you want to inspect → launch Accessibility Insights → hover or use keyboard navigation to explore the UI tree (Name, Role, ControlType, AutomationId).

These tools show you the Name, Role, ControlType, and other metadata used in Terminator selectors.

Platform Support

Platform	CLI	MCP Agent	Automation	Installation Method
Windows	Yes	Yes	Yes	npm/bunx

Note: Terminator currently supports Windows only. macOS and Linux support is not available.

Troubleshooting

For detailed troubleshooting, debugging, and MCP server logs, send us a message.

Contributing

Contributions are welcome! Please feel free to submit issues and pull requests. many parts are experimental, and help is appreciated.