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Servidor MCP-Hub-MCP

Un servidor concentrador que se conecta y administra otros servidores MCP (Protocolo de contexto de modelo).

Descripción general

Este proyecto crea un servidor concentrador MCP que puede conectarse a otros servidores MCP, listar sus herramientas y ejecutarlas. Es especialmente útil para superar el límite de 40 herramientas MCP de Cursor. Incluso fuera de Cursor, ayuda a reducir los errores de la IA al ocultar las herramientas poco utilizadas.

Related MCP server: MCP Hub MCP Server

Características principales

  • Conexión automática a otros servidores MCP mediante archivo de configuración

  • Lista de herramientas disponibles en los servidores conectados

  • Llamar a herramientas en servidores conectados y devolver resultados

Configuración

Añade esto a tu mcp.json :

Usando npx

{
  "mcpServers": {
    "mcp-hub": {
      "command": "npx",
      "args": [
        "-y",
        "mcp-hub-mcp",
        "--config-path",
        "/path/to/your/mcp-hub-config.json"
      ]
    }
  }
}

Uso de Node (por ejemplo, para desarrollo local o ejecución directa)

Si npx no detecta los cambios locales o prefieres ejecutar directamente el servidor compilado, puedes configurarlo de esta manera:

{
  "mcpServers": {
    "mcp-hub": {
      "command": "node",
      "args": [
        "/path/to/your/mcp-hub-mcp/dist/index.js",
        "--config-path",
        "/path/to/your/mcp-hub-config.json"
      ]
    }
  }
}

Nota: asegúrese de haber compilado el proyecto (por ejemplo, npm run build o pnpm build ) para que dist/index.js exista.

Indicador del sistema (o reglas del cursor)

Before processing a user's request, you must use the "list_all_tools" command to identify which tools are available.

Esto garantiza que el asistente de IA siempre verificará las herramientas disponibles antes de intentar usarlas.

Instalación y funcionamiento

Requisitos

  • Node.js 18.0.0 o superior

  • npm, hilo o pnpm

Instalación

# Clone repository
git clone <repository-url>
cd mcp-hub-mcp

# Install dependencies
npm install
# or
yarn install
# or
pnpm install

Construir

npm run build
# or
yarn build
# or
pnpm build

Correr

npm start
# or
yarn start
# or
pnpm start

Modo de desarrollo

npm run dev
# or
yarn dev
# or
pnpm dev

Archivo de configuración

El servidor MCP-Hub-MCP utiliza un archivo de configuración en formato Claude Desktop para conectarse automáticamente a otros servidores MCP. Puede especificar el archivo de configuración de las siguientes maneras:

  1. Variable de entorno: Establezca la variable de entorno MCP_CONFIG_PATH en la ruta del archivo de configuración

  2. Argumento de la línea de comandos: utilice la opción --config-path para especificar la ruta del archivo de configuración

  3. Ruta predeterminada: utilice el archivo mcp-config.json en el directorio actual

Formato del archivo de configuración:

{
  "mcpServers": {
    "serverName1": {
      "command": "command",
      "args": ["arg1", "arg2", ...],
      "env": { "ENV_VAR1": "value1", ... }
    },
    "serverName2": {
      "command": "anotherCommand",
      "args": ["arg1", "arg2", ...]
    }
  }
}

Ejemplo:

{
  "mcpServers": {
    "filesystem": {
      "command": "npx",
      "args": [
        "-y",
        "@modelcontextprotocol/server-filesystem",
        "/Users/username/Desktop",
        "/Users/username/Downloads"
      ]
    },
    "other-server": {
      "command": "node",
      "args": ["path/to/other-mcp-server.js"]
    }
  }
}

Uso

El servidor MCP-Hub-MCP proporciona las siguientes herramientas:

1. list-all-tools

Devuelve una lista de herramientas de todos los servidores conectados.

{
  "name": "list-all-tools",
  "arguments": {}
}

2. call-tool

Llama a una herramienta en un servidor específico.

  • serverName : Nombre del servidor MCP desde el que se llamará la herramienta

  • toolName : Nombre de la herramienta a llamar

  • toolArgs : Argumentos para pasar a la herramienta

{
  "name": "call-tool",
  "arguments": {
    "serverName": "filesystem",
    "toolName": "readFile",
    "toolArgs": {
      "path": "/Users/username/Desktop/example.txt"
    }
  }
}

Convención de mensajes de confirmación

Este proyecto sigue los Commits convencionales para el control de versiones automático y la generación de REGISTRO DE CAMBIOS.

Formato: <type>(<scope>): <description>

Ejemplos:

  • feat: add new hub connection feature

  • fix: resolve issue with server timeout

  • docs: update API documentation

  • chore: update dependencies

Tipos:

  • feat : Nueva característica (mejora de versión MENOR)

  • fix : Corrección de errores (actualización de la versión PATCH)

  • docs : Solo cambios en la documentación

  • style : Cambios que no afectan el significado del código

  • refactor : cambio de código que no corrige un error ni agrega una característica

  • perf : Cambio de código que mejora el rendimiento

  • test : Agregar pruebas faltantes o corregir pruebas existentes

  • chore : Cambios en el proceso de construcción o herramientas auxiliares

Cambios importantes: agregue BREAKING CHANGE: en el pie de página de la confirmación para activar un aumento de versión IMPORTANTE.

Pila tecnológica

  • Node.js

  • Mecanografiado

  • @modelcontextprotocol/sdk (versión: ^1.9.0)

  • zod (versión: ^3.22.4)

Licencia

Instituto Tecnológico de Massachusetts (MIT)

Available Tools

2 tools
call-toolC

Call a specific tool from a specific server

ParametersJSON Schema
NameRequiredDescriptionDefault
serverNameYesName of the MCP server to call tool from
toolNameYesName of the tool to call
toolArgsYesArguments to pass to the tool

TDQS

C2.9/5.0
Behavior2/5

Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

With no annotations provided, the description carries full burden but only states the basic action. It lacks details on behavioral traits such as error handling, permissions needed, rate limits, or what happens when calling tools (e.g., side effects, response format). This is inadequate for a tool that interacts with other servers.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness5/5

Is the description appropriately sized, front-loaded, and free of redundancy?

The description is a single, clear sentence with zero wasted words. It's front-loaded and efficiently conveys the core purpose without unnecessary elaboration, making it easy for an agent to parse quickly.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness2/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

Given the tool's complexity (calling tools across servers with nested parameters) and lack of annotations or output schema, the description is insufficient. It doesn't address critical context like how toolArgs should be structured, error cases, or what the call returns, leaving significant gaps for agent understanding.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters3/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

Schema description coverage is 100%, so the schema fully documents parameters (serverName, toolName, toolArgs). The description adds no additional meaning beyond the schema, such as examples or constraints, but the high coverage justifies the baseline score of 3.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose4/5

Does the description clearly state what the tool does and how it differs from similar tools?

The description clearly states the action ('Call') and target ('a specific tool from a specific server'), which is specific and unambiguous. However, it doesn't differentiate from its sibling 'list-all-tools', which serves a completely different purpose (listing vs. calling), so it misses full sibling distinction.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines2/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

No guidance is provided on when to use this tool versus alternatives. The description merely states what it does without indicating context, prerequisites, or comparison to the sibling tool 'list-all-tools', leaving the agent to infer usage scenarios.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.

list-all-toolsA

List all available tools from all connected servers. Before starting any task based on the user's request, always begin by using this tool to get a list of any additional tools that may be available for use.

ParametersJSON Schema
NameRequiredDescriptionDefault

No parameters

TDQS

A4/5.0
Behavior3/5

Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

No annotations are provided, so the description carries the full burden. It describes the tool's behavior as listing tools from all servers and suggests it should be used first in tasks, which adds useful context. However, it lacks details on potential limitations (e.g., rate limits, authentication needs, or what 'all connected servers' entails), leaving some behavioral aspects unclear.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness4/5

Is the description appropriately sized, front-loaded, and free of redundancy?

The description is concise and well-structured in two sentences: the first states the purpose, and the second provides usage guidelines. Every sentence adds value without redundancy. It could be slightly more front-loaded by emphasizing the 'list' action first, but overall it's efficient and clear.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness4/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

Given the tool's simplicity (0 parameters, no output schema, no annotations), the description is reasonably complete. It explains what the tool does and when to use it, which suffices for this context. However, it lacks details on output format or behavioral constraints (e.g., whether it's idempotent or has side effects), preventing a perfect score.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters4/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

The input schema has 0 parameters with 100% coverage, so no parameter documentation is needed. The description appropriately does not discuss parameters, focusing instead on the tool's purpose and usage. This meets the baseline of 4 for tools with no parameters, as it avoids unnecessary details.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose4/5

Does the description clearly state what the tool does and how it differs from similar tools?

The description clearly states the tool's purpose: 'List all available tools from all connected servers.' It specifies the verb ('list') and resource ('tools'), and distinguishes it from the sibling tool 'call-tool' by focusing on enumeration rather than invocation. However, it doesn't explicitly differentiate from potential other listing tools beyond the sibling, keeping it at 4 instead of 5.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines5/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

The description provides explicit usage guidelines: 'Before starting any task based on the user's request, always begin by using this tool to get a list of any additional tools that may be available for use.' It clearly states when to use it (at the start of tasks) and why (to discover additional tools), offering strong guidance without alternatives needed given the context.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.

Tool Schema Changelog

Recent tool additions, removals, and schema changes observed during successful MCP inspections.

  1. 2 tool updates
    • First observedcall-tool
    • First observedlist-all-tools

TDQS

B3.3/5.0

Scored across 2 tools

Disambiguation5/5

The two tools have completely distinct purposes with no overlap: one is for calling specific tools from servers, while the other is for listing all available tools. An agent can easily tell them apart as they serve different functions in the tool management workflow.

Naming Consistency4/5

The tool names follow a consistent verb_noun pattern (call-tool, list-all-tools) with clear actions and objects. The hyphenated style is used consistently, though 'list-all-tools' includes a modifier ('all') which is a minor deviation from a pure verb_noun structure.

Tool Count2/5

With only 2 tools, the server feels thin for its apparent purpose of managing MCP tools across servers. While it covers basic operations (call and list), more comprehensive tool management (e.g., discover servers, configure connections) is missing, making the scope underdeveloped.

Completeness2/5

The tool surface is severely incomplete for managing an MCP hub. It lacks essential operations such as discovering or connecting to servers, managing server configurations, or handling errors. The two tools provide only minimal functionality, leaving significant gaps that will hinder agent workflows.

Maintenance

ActivityInactive
ResponsivenessNo issues

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