How do I install bun-uia?

Pick a client above and copy the generated config. Cursor and VS Code also have a deep link when the server can run locally or remotely.

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This listing scores 45 (Fair). The formula is published on the methodology page.

MCPpedia

bun-uia MCP Server — Install for Claude, Cursor & VS Code | MCPpedia

bun-uia MCP Server

Name: bun-uia MCP Server
Author: obscuritysrl

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

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~/Library/Application Support/Claude/claude_desktop_config.json

{
  "mcpServers": {
    "obscuritysrl-bun-uia": {
      "command": "bunx",
      "args": [
        "-y",
        "bun-uia@1.9.1"
      ],
      "env": {
        "BUN_UIA_PROFILE": "safe",
        "BUN_UIA_OS": "",
        "BUN_UIA_ALLOW": "",
        "BUN_UIA_DENY": "",
        "BUN_UIA_CURSOR": "",
        "BUN_UIA_FS_ROOT": ""
      }
    }
  }
}

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Environment

Name	Required	Notes
BUN_UIA_PROFILE	No	Capability profile: 'readonly' (inspect/read only), 'safe' (read + input + window — default), or 'full' (also os + fs tools).
BUN_UIA_OS	No	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	No	Comma-separated tool names or categories to additionally allow on top of the profile.
BUN_UIA_DENY	No	Comma-separated tool names or categories to deny, overriding the profile and BUN_UIA_ALLOW.
BUN_UIA_CURSOR	No	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	No	Sandbox root directory that read_file/write_file/list_dir are confined to when fs tools are enabled.

bun-uia MCP Server

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