MCP security checks — WARDEN and HISTOR

Scan MCP tool definitions for poisoning, look up server history, count tool-list tokens. Free.

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Calidad y seguridad

A
Calidad de la descripción
95%
Integridad del esquema
93%
Calidad de los nombres
80%
Riesgo de envenenamiento
100%
Coincidencia de permisos
100%
Cumplimiento del protocolo
100%

Basado en el análisis automatizado de las definiciones de herramientas y el cumplimiento del protocolo.

Costo de contexto

~740Tokens (definiciones de herramientas)
~939 BTamaño de respuesta típico
Impacto moderado en la atención (0.58% del contexto de 128k)

Este es el número aproximado de tokens que se consumen cada vez que las herramientas del servidor se cargan en el contexto de un modelo. Los recuentos más altos reducen la atención disponible para otras tareas.

Instalar

Instalación con un clic

Agrega esto a tu archivo `claude_desktop_config.json`:

{
  "mcpServers": {
    "mcp-security": {
      "url": "https://modelmarket.dev/tools/mcp/security"
    }
  }
}

Puntos de conexión remotos

https://modelmarket.dev/tools/mcp/securitystreamable-http

Qué puede hacer

Inventario de herramientas

Herramientas (4)

🟢 Solo lectura🟡 Escritura🔴 Eliminación⚪ Desconocido
🟢warden_scan(tools, server)

Scan an MCP server's tools/list with WARDEN, the open-source MCP firewall: static rules and a threat list over every name, description, schema and annotation. Returns allow or block and each finding with its rule and severity. Quoted fragments of the scanned text are left out of the answer.

Esquema de entrada

{
  "type": "object",
  "properties": {
    "tools": {
      "type": "array",
      "items": {
        "type": "object"
      },
      "description": "The server's tools/list result: [{name, description, inputSchema, ...}]"
    },
    "server": {
      "type": "object",
      "description": "Optional {name, url} to label the verdict"
    }
  },
  "required": [
    "tools"
  ]
}
🟢histor_check(endpoint, name)

Look up an MCP server in HISTOR, a public append-only log of MCP tool sets: when its tool set was first pinned, how often it changed, and what the pattern scan found. HISTOR answers from its own observations and never contacts the server.

Esquema de entrada

{
  "type": "object",
  "properties": {
    "endpoint": {
      "type": "string",
      "description": "https URL of the MCP server"
    },
    "name": {
      "type": "string",
      "description": "Or its registry name, e.g. io.github.owner/server"
    }
  }
}
🟢tool_list_cost(tools, server)

How many tokens an MCP server's tool list adds to every model request, what that costs per 1,000 requests, the heaviest tools, and where it sits among 18,204 packages and 16,170 remote servers. Send a tools/list or name a server HISTOR observes.

Esquema de entrada

{
  "type": "object",
  "properties": {
    "tools": {
      "type": "array",
      "items": {
        "type": "object"
      },
      "description": "A tools/list result"
    },
    "server": {
      "type": "string",
      "description": "Or a server HISTOR observes: https endpoint, npm:<package>, pypi:<package> or registry name"
    }
  }
}
🟢x402_check(x_payment, requirements, authorization, signature, network)

Check a signed x402 USDC payment before submitting it: recovers the EIP-712 signer, runs USDC's own checks and the seller's terms, and when the signature fails names the domain it was really made for (e.g. Base Sepolia's 'USDC' used on Base, where USDC is 'USD Coin').

Esquema de entrada

{
  "type": "object",
  "properties": {
    "x_payment": {
      "type": "string",
      "description": "The X-PAYMENT header (base64)"
    },
    "requirements": {
      "type": "object",
      "description": "The 402's accepts entry: payTo, amount, asset, network"
    },
    "authorization": {
      "type": "object",
      "description": "Instead of x_payment: from, to, value, validAfter, validBefore, nonce"
    },
    "signature": {
      "type": "string",
      "description": "With authorization: the 65-byte hex signature"
    },
    "network": {
      "type": "string",
      "description": "With authorization: base, base-sepolia, … or eip155:<id>"
    }
  }
}

Comunidad

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Evidencia

Observaciones recientes

verificadoversión no registrada4 herramientas