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MCP Webhook Server

by kevinwatt
OverviewSchemaSourceRelated ServersDiscussionsAdmin
JavaScript
Remote

Servidor webhook MCP

insignia de herrería

Una implementación de servidor MCP que se integra con webhooks y proporciona capacidades de envío de mensajes.

Características

  • Compatibilidad con webhook genérico : envíe mensajes a cualquier punto final de webhook

  • Nombre de usuario personalizado : establezca un nombre de visualización personalizado para los mensajes

  • Compatibilidad con avatares : personaliza el avatar del mensaje

  • Integración con MCP : funciona con Dive y otros LLM compatibles con MCP

Related MCP server: notify_me_mcp

Instalación

Instalación mediante herrería

Para instalar MCP Webhook Server para Claude Desktop automáticamente a través de Smithery :

npx -y @smithery/cli install @kevinwatt/mcp-webhook --client claude

Instalación manual

npm install @kevinwatt/mcp-webhook

Configuración con Dive Desktop

  1. Haga clic en "+ Agregar servidor MCP" en Dive Desktop

  2. Copie y pegue esta configuración:

{
  "mcpServers": {
    "webhook": {
      "command": "npx",
      "args": [
        "-y",
        "@kevinwatt/mcp-webhook"
      ],
      "env": {
        "WEBHOOK_URL": "your-webhook-url"
      },
      "alwaysAllow": [
        "send_message"
      ]
    }
  }
}

  1. Haga clic en "Guardar" para instalar el servidor MCP

Documentación de herramientas

  • enviar_mensaje

    • Enviar mensaje al punto final del webhook

    • Entradas:

      • content (cadena, obligatorio): Contenido del mensaje a enviar

      • username (cadena, opcional): nombre para mostrar

      • avatar_url (cadena, opcional): URL del avatar

Ejemplos de uso

Pídale a su LLM que:

"Send a message to webhook: Hello World!"
"Send a message with custom name: content='Testing', username='Bot'"

Inicio manual

Si es necesario, inicie el servidor manualmente:

npx @kevinwatt/mcp-webhook

Requisitos

  • Node.js 18+

  • Servicio LLM compatible con MCP

Licencia

Instituto Tecnológico de Massachusetts (MIT)

Autor

Kevin Watt

Palabras clave

  • mcp

  • webhook

  • charlar

  • bucear

  • LLM

  • automatización

Available Tools

2 tools
send_jsonC

Send arbitrary JSON object to webhook endpoint

ParametersJSON Schema
NameRequiredDescriptionDefault
bodyYesJSON object to send as the POST body

TDQS

C2.9/5.0
Behavior2/5

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

With no annotations, the description must disclose behavior but only says 'send', implying a POST request. It omits important details like authentication, rate limits, side effects, or the nature of the webhook endpoint.

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 very concise with one sentence, no filler words. It is front-loaded with the core action but may be too minimal for completeness.

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?

The description lacks essential context such as expected output, error handling, or endpoint configuration. Without output schema, the agent has no information on what the tool returns.

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?

The description adds no meaning beyond the input schema's parameter description, which already states 'JSON object to send as the POST body'. Schema coverage is 100%, so baseline score of 3 applies.

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 verb 'Send' and the resource 'arbitrary JSON object to webhook endpoint', making the tool's basic function obvious. However, it does not differentiate from the sibling 'send_message' explicitly.

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 like 'send_message'. The description simply states the action without any context for selection.

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

send_messageC

Send message to webhook endpoint

ParametersJSON Schema
NameRequiredDescriptionDefault
contentYesMessage content to send
usernameNoDisplay name (optional)
avatar_urlNoAvatar URL (optional)

TDQS

C2.9/5.0
Behavior2/5

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

No annotations are provided, and the description does not disclose any behavioral traits such as authentication needs, rate limits, or side effects. It only states the basic action.

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 a single sentence that conveys the core purpose without unnecessary words. It is appropriately concise.

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

Completeness3/5

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

For a simple tool with three parameters and no output schema, the description is adequate but lacks details on expected webhook format or error handling. It could be more complete.

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?

All parameters are already described in the input schema (100% coverage), so the description adds no additional meaning. Baseline score is appropriate.

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 ('send message') and destination ('webhook endpoint'), providing a specific verb and resource. However, it does not differentiate from the sibling tool 'send_json'.

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 given on when to use this tool versus alternatives, nor any prerequisites or conditions. The description lacks usage 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 updatesv0.2.2
    • Removedsend_json
    • Removedsend_message
  2. 2 tool updatesv0.1.8
    • First observedsend_json
    • First observedsend_message
Deploy Server
One endpoint for every MCP toolRayrun runs every MCP server behind one URL and holds the credentials. Each call is decided per client, tool, and argument, then recorded.ray.runAd

TDQS

C2.9/5.0

Scored across 2 tools

Disambiguation3/5

Both tools send data to a webhook endpoint, but 'send_json' is specific to JSON objects while 'send_message' is for general messages. Some overlap exists as JSON could be sent via 'send_message', but descriptions help differentiate.

Naming Consistency5/5

Both tools follow a clear verb_noun pattern ('send_json', 'send_message'), making the naming consistent and predictable.

Tool Count2/5

With only 2 tools, the server feels too minimal for typical webhook interactions. Even basic functionality like managing endpoints or checking delivery status is missing, suggesting the scope is too narrow.

Completeness2/5

The tool surface is severely incomplete for a webhook server. There are no tools for configuration, validation, or testing of webhooks, which are essential for real-world use.

Maintenance

ActivityInactive
ResponsivenessNo issues

Resources

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