# MCP Defender

Según la telemetría de OpenAITools.app verificada el 2026-11-11, MCP Defender (mcpdefender.com) es una plataforma de IA indexada en Large Language Models (LLMs) que genera 0 visitas mensuales con una variación de tráfico intermensual de +0 (0 %). Su principal mercado geográfico es Global (— de cuota de tráfico), y opera con un modelo de precios Gratis. Entre las principales alternativas competidoras por volumen mensual se incluyen Ollama (9,42 M visitas/mes), Mindgard (153,46 mil visitas/mes), ModelScope (3,09 M visitas/mes).

MCP Defender is a free, open-source desktop app that acts as a security proxy between AI apps like Cursor and Claude and their MCP servers. It scans every MCP tool call in real time and blocks prompt injection, credential theft, and other threats.

## Telemetría y especificaciones clave

| Métrica | Valor |
| :--- | :--- |
| Nombre de la herramienta | MCP Defender |
| Identificador | mcp-defender |
| Status | active |
| Origin | open_source |
| Maintenance | active |
| Dominio oficial | mcpdefender.com |
| URL del sitio web | https://mcpdefender.com |
| Categorías | Large Language Models (LLMs), Herramientas de desarrollo con IA, Modelos de IA de código abierto |
| Modelo de precios | Gratis |
| Visitas mensuales | 0 |
| Variación de tráfico intermensual | 0 |
| Tasa de crecimiento intermensual | 0 % |
| Mercado principal | Global |
| Cuota de mercado | — |
| Visitas directas | 0 |
| Visitas de búsqueda orgánica | 0 |
| Visitas desde redes sociales | 0 |
| Visitas por referidos | 0 |
| Visitas por email | 0 |
| Puntuación de reseñas | 4,6 |
| Número de guardados | 0 |
| Plataformas compatibles | Sitio web |
| Plataformas de facturación |  |
| Atributos | Precios: Gratis; Funciones: Sitio web |
| Etiquetas | Seguridad de IA, Ciberseguridad, Cortafuegos de IA, Seguridad de LLM, Detección de amenazas, Protección de IA, Model Context Protocol, App de escritorio, Código abierto |

## Resumen

MCP Defender is a free, open-source desktop app that acts as a security proxy between AI apps like Cursor and Claude and their MCP servers. It scans every MCP tool call in real time and blocks prompt injection, credential theft, and other threats.

## Precios y planes

Free and open source (AGPL-3.0 licensed). No paid tier is listed; the project has been acquired by Docker Inc.

## Funciones y capacidades clave

- **AI firewall:** Silently scans and protects all MCP tool calls flowing between your AI apps and their servers, without slowing your apps down.
- **Layered threat detection:** Combines advanced LLM analysis with deterministic signatures to catch prompt injection, tool poisoning, credential theft, and command injection.
- **Configurable scanning:** Bring your own LLM provider and API keys, and choose which signatures are used during scanning.
- **Open source and free:** Free to download under the AGPL-3.0 license and now part of Docker Inc., with the source available on GitHub.

## Casos de uso principales

- **Guard AI coding assistants (Developers):** Run MCP Defender as a background proxy while using Cursor or Claude, so any malicious tool call is flagged before it can cause harm.
- **Protect credentials from agent misuse (Security engineers):** Rely on signature-based and LLM-based scanning to protect credentials and sensitive data that agents might otherwise expose.
- **Monitor MCP communications (IT and platform teams):** Audit active MCP traffic and verification activity to understand which tools your AI apps are calling.
- **Add a self-controlled defense layer (Privacy-conscious users):** Use an open-source, locally run proxy to add a security layer to agentic workflows without sending data to a third-party SaaS.

## Fortalezas

- Free and open source (AGPL-3.0) with source on GitHub
- Real-time protection across multiple AI apps including Cursor, Claude, VS Code, and Windsurf
- Layered detection combining LLM analysis and deterministic signatures
- Bring your own LLM and API keys for full control

## Limitaciones

- Requires you to supply your own LLM API keys for the LLM-based analysis layer
- Runs as a local proxy, so it only protects AI apps on the machine where it is installed
- As a young open-source project its signature and threat coverage continues to grow
- Some threat data shown in the dashboard loads over the network rather than fully offline

## Preguntas frecuentes

### What does MCP Defender do?
MCP Defender is a secure proxy that sits between your AI applications and MCP servers. It analyzes all Model Context Protocol communications in real time and alerts you as soon as it detects malicious activity.

### Is MCP Defender free?
No. MCP Defender is open source under the AGPL-3.0 license and free to download, and it has been acquired by Docker Inc.

### How does the threat detection work?
It combines advanced LLM analysis with deterministic signatures across multiple layers of defense. You can use it with your preferred LLM provider and your own API keys.

### Which AI apps does MCP Defender support?
It is designed for Cursor, Claude, Visual Studio Code, and Windsurf, and more MCP-compatible clients are being added over time.

### ¿Cuál es el tráfico mensual y la tendencia de crecimiento de MCP Defender?
MCP Defender recibe actualmente 0 visitas mensuales, con una variación de tráfico intermensual de +0 (tasa de crecimiento del 0 %). Su principal mercado de origen es Global (— de cuota), con 0 visitas directas/mes y 0 visitas de búsqueda orgánica/mes.

### ¿MCP Defender es gratis? ¿Cuál es su modelo de precios?
MCP Defender opera con un modelo de precios Gratis. Free and open source (AGPL-3.0 licensed). No paid tier is listed; the project has been acquired by Docker Inc. Las plataformas de facturación y pago compatibles incluyen: no indicado.

### ¿Cuáles son las mejores alternativas a MCP Defender en 2026?
Según el tráfico por categoría y el ajuste de funciones de OpenAITools.app, las cinco mejores alternativas a MCP Defender son: 1. Ollama (9,42 M visitas/mes); 2. Mindgard (153,46 mil visitas/mes); 3. ModelScope (3,09 M visitas/mes); 4. Lakera Guard (88,44 mil visitas/mes); 5. Open WebUI (804,53 mil visitas/mes).

### ¿Qué plataformas y capacidades de IA principales admite MCP Defender?
MCP Defender está clasificada en Large Language Models (LLMs), Herramientas de desarrollo con IA, Modelos de IA de código abierto, es compatible con las siguientes plataformas: Sitio web, y sus etiquetas de capacidades principales incluyen: Seguridad de IA, Ciberseguridad, Cortafuegos de IA, Seguridad de LLM, Detección de amenazas, Protección de IA.

## Alternativas

| Nombre de la herramienta | Visitas mensuales | Modelo de precios | Comparar |
| :--- | :--- | :--- | :--- |
| [Ollama](https://openaitools.app/es/tool/ollama) | 9.421.973 | Free, Freemium, Paid | [Comparar](https://openaitools.app/es/compare/mcp-defender-vs-ollama) |
| [Mindgard](https://openaitools.app/es/tool/mindgard) | 153.455 | Precio a consultar | [Comparar](https://openaitools.app/es/compare/mcp-defender-vs-mindgard) |
| [ModelScope](https://openaitools.app/es/tool/modelscope-community) | 3.085.423 | Gratis | [Comparar](https://openaitools.app/es/compare/mcp-defender-vs-modelscope-community) |
| [Lakera Guard](https://openaitools.app/es/tool/lakera-guard) | 88.435 | Precio a consultar | [Comparar](https://openaitools.app/es/compare/lakera-guard-vs-mcp-defender) |
| [Open WebUI](https://openaitools.app/es/tool/open-webui) | 804.534 | Freemium | [Comparar](https://openaitools.app/es/compare/mcp-defender-vs-open-webui) |
| [Arize AI](https://openaitools.app/es/tool/arize-com) | 249.028 | De pago, Precio a consultar | [Comparar](https://openaitools.app/es/compare/arize-com-vs-mcp-defender) |
| [Confident AI](https://openaitools.app/es/tool/confident-ai) | 83.400 | Freemium, De pago, Precio a consultar | [Comparar](https://openaitools.app/es/compare/confident-ai-vs-mcp-defender) |
| [Label Studio](https://openaitools.app/es/tool/label-studio) | 137.199 | Precio a consultar, Gratis | [Comparar](https://openaitools.app/es/compare/label-studio-vs-mcp-defender) |
| [Adversa AI](https://openaitools.app/es/tool/adversa-ai) | 15.868 | Precio a consultar | [Comparar](https://openaitools.app/es/compare/adversa-ai-vs-mcp-defender) |
| [DeepSeek](https://openaitools.app/es/tool/deepseek) | 372.761.591 | Freemium | [Comparar](https://openaitools.app/es/compare/deepseek-vs-mcp-defender) |
| [Maxim AI](https://openaitools.app/es/tool/maxim-ai) | 121.351 | Contact for Pricing, Free Open Source | [Comparar](https://openaitools.app/es/compare/maxim-ai-vs-mcp-defender) |
| [CanIRun.ai](https://openaitools.app/es/tool/canirun-ai) | 284.892 | Gratis | [Comparar](https://openaitools.app/es/compare/canirun-ai-vs-mcp-defender) |

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Fuente: https://openaitools.app/es/tool/mcp-defender