Bun Uia MCP Server

by obscuritysrlio.github.ObscuritySRL/bun-uiav1.9.1

Playwright for the Windows desktop, from Bun — drive native GUIs via UI Automation + MCP.

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Active2d ago

Install Bun Uia MCP server

claude mcp add bun-uia -- npx -y bun-uia

{
  "mcpServers": {
    "bun-uia": {
      "command": "npx",
      "args": [
        "-y",
        "bun-uia"
      ]
    }
  }
}

Add to ~/.cursor/mcp.json (global) or .cursor/mcp.json (project).

{
  "mcpServers": {
    "bun-uia": {
      "command": "npx",
      "args": [
        "-y",
        "bun-uia"
      ]
    }
  }
}

Settings → Developer → Edit Config (claude_desktop_config.json), then restart.

{
  "servers": {
    "bun-uia": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "bun-uia"
      ]
    }
  }
}

Add to .vscode/mcp.json in your workspace.

{
  "mcpServers": {
    "bun-uia": {
      "command": "npx",
      "args": [
        "-y",
        "bun-uia"
      ]
    }
  }
}

Add to ~/.codeium/windsurf/mcp_config.json.

Variable	Required	Secret	Description
BUN_UIA_PROFILE	—	—	Capability profile: 'readonly' (inspect/read only), 'safe' (read + input + window — default), or 'full' (also os + fs tools).
BUN_UIA_OS	—	—	Set to '1' to allow OS-level tools (launch_app, run_program, open_path) AND filesystem tools (read_file, write_file, list_dir) regardless of profile.
BUN_UIA_ALLOW	—	—	Comma-separated tool names or categories to additionally allow on top of the profile.
BUN_UIA_DENY	—	—	Comma-separated tool names or categories to deny, overriding the profile and BUN_UIA_ALLOW.
BUN_UIA_CURSOR	—	—	Set to 'never' to forbid the real-cursor fallback entirely (strictly cursor-free). By default clicks/drags are cursor-free but fall back to the real hardware cursor when no cursor-free path exists.
BUN_UIA_FS_ROOT	—	—	Sandbox root directory that read_file/write_file/list_dir are confined to when fs tools are enabled.