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UI-TARS Desktop

por bytedance · bytedance/UI-TARS-desktop

ByteDance's open multimodal agent stack — vision-grounded computer-use, callable from Claude via MCP.

UI-TARS Desktop is ByteDance's open multimodal agent platform. It uses screen understanding for desktop control and exposes itself as MCP. Claude can delegate vision-grounded GUI tasks where text-only tools fall short.

Por qué usarlo

Características clave

Demo en vivo

Cómo se ve en la práctica

listo

Instalar

Elige tu cliente

~/Library/Application Support/Claude/claude_desktop_config.json  · Windows: %APPDATA%\Claude\claude_desktop_config.json
{
  "mcpServers": {
    "ui-tars-desktop-mcp": {
      "command": "docker",
      "args": [
        "run",
        "-p",
        "8080:8080",
        "ghcr.io/bytedance/ui-tars-desktop:latest"
      ]
    }
  }
}

Abre Claude Desktop → Settings → Developer → Edit Config. Reinicia después de guardar.

~/.cursor/mcp.json · .cursor/mcp.json
{
  "mcpServers": {
    "ui-tars-desktop-mcp": {
      "command": "docker",
      "args": [
        "run",
        "-p",
        "8080:8080",
        "ghcr.io/bytedance/ui-tars-desktop:latest"
      ]
    }
  }
}

Cursor usa el mismo esquema mcpServers que Claude Desktop. La configuración del proyecto prevalece sobre la global.

VS Code → Cline → MCP Servers → Edit
{
  "mcpServers": {
    "ui-tars-desktop-mcp": {
      "command": "docker",
      "args": [
        "run",
        "-p",
        "8080:8080",
        "ghcr.io/bytedance/ui-tars-desktop:latest"
      ]
    }
  }
}

Haz clic en el icono MCP Servers de la barra lateral de Cline y luego en "Edit Configuration".

~/.codeium/windsurf/mcp_config.json
{
  "mcpServers": {
    "ui-tars-desktop-mcp": {
      "command": "docker",
      "args": [
        "run",
        "-p",
        "8080:8080",
        "ghcr.io/bytedance/ui-tars-desktop:latest"
      ]
    }
  }
}

Mismo formato que Claude Desktop. Reinicia Windsurf para aplicar.

~/.continue/config.json
{
  "mcpServers": [
    {
      "name": "ui-tars-desktop-mcp",
      "command": "docker",
      "args": [
        "run",
        "-p",
        "8080:8080",
        "ghcr.io/bytedance/ui-tars-desktop:latest"
      ]
    }
  ]
}

Continue usa un array de objetos de servidor en lugar de un mapa.

~/.config/zed/settings.json
{
  "context_servers": {
    "ui-tars-desktop-mcp": {
      "command": {
        "path": "docker",
        "args": [
          "run",
          "-p",
          "8080:8080",
          "ghcr.io/bytedance/ui-tars-desktop:latest"
        ]
      }
    }
  }
}

Añádelo a context_servers. Zed recarga en caliente al guardar.

claude mcp add ui-tars-desktop-mcp -- docker run -p 8080:8080 ghcr.io/bytedance/ui-tars-desktop:latest

Un solo comando. Verifica con claude mcp list. Quita con claude mcp remove.

Casos de uso

Usos del mundo real: UI-TARS Desktop

Drive a GUI app via vision when DOM selectors fail

👤 Developers ⏱ ~15 min intermediate

Cuándo usarlo: You're automating a desktop or canvas app that has no scripting surface.

Flujo
  1. Bridge
    Run UI-TARS; register with Claude.✓ Copiado
    → Tool visible
  2. Delegate
    Ask Claude to delegate the GUI step.✓ Copiado
    → UI-TARS clicks, types
  3. Verify
    Replay the screen trace.✓ Copiado
    → Audit done

Resultado: GUI automation in apps with no API.

Combinaciones

Combínalo con otros MCPs para multiplicar por 10

ui-tars-desktop-mcp + openagent-mcp

UI-TARS for vision tasks; OpenAgent for code-text tasks

Combine ui-tars-desktop-mcp with openagent-mcp: UI-TARS for vision tasks; OpenAgent for code-text tasks✓ Copiado

Herramientas

Lo que expone este MCP

HerramientaEntradasCuándo llamarCoste
ui_act (see docs) Run a vision-grounded GUI action 1 call
ui_observe (see docs) Capture screen state 1 call

Coste y límites

Lo que cuesta ejecutarlo

Cuota de API
Local resources + LLM
Tokens por llamada
Screen-capture is heavy
Monetario
Free OSS; provider costs
Consejo
Crop the screen region you care about before sending

Seguridad

Permisos, secretos, alcance

Ámbitos mínimos: screen-capture input-injection
Almacenamiento de credenciales: Replays on disk
Salida de datos: Configured providers
No conceder nunca: Run with banking app visible

Resolución de problemas

Errores comunes y soluciones

Action misses target on Retina display

Set the DPI scale; UI-TARS defaults to 1x

Alternativas

UI-TARS Desktop vs otros

AlternativaCuándo usarlaContrapartida
OpenAgentLower resource costLess vision grounding

Más

Recursos

📖 Lee el README oficial en GitHub

🐙 Ver issues abiertas

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