Webhooks

Webhooks

kevinwatt

Sends customizable HTTP POST messages to webhook endpoints like Discord, Slack, or any webhook URL. Enables AI agents to trigger notifications and integrate with external systems.

Enables sending customizable messages to external webhook endpoints, facilitating automated notifications and workflow integrations.

251,366 views11Local (stdio)

What it does

  • Send messages to Discord webhooks
  • Post to Slack webhook endpoints
  • Send custom JSON payloads to any webhook URL
  • Set custom usernames and avatars for messages
  • Trigger notifications from AI conversations
  • Integrate with Mattermost and other webhook services

Best for

AI agents sending alerts to team chat channelsAutomated notifications from Claude conversationsIntegrating AI workflows with external systemsBuilding chatbots that post to multiple platforms
Works with any webhook endpointNo API keys required for basic webhooksCompatible with major MCP clients

About Webhooks

Webhooks is a community-built MCP server published by kevinwatt that provides AI assistants with tools and capabilities via the Model Context Protocol. Webhooks enable automated notifications and workflow automation software integration by sending customizable messages to It is categorized under communication, developer tools.

How to install

You can install Webhooks in your AI client of choice. Use the install panel on this page to get one-click setup for Cursor, Claude Desktop, VS Code, and other MCP-compatible clients. This server runs locally on your machine via the stdio transport.

License

Webhooks is released under the MIT license. This is a permissive open-source license, meaning you can freely use, modify, and distribute the software.

πŸͺ mcp-webhook

A powerful MCP server that enables webhook messaging capabilities for your AI agents

npm version smithery badge License: MIT Node.js Version MseeP.ai Security Assessment

Send messages to any webhook endpoint through Claude, Dive, and other MCP-compatible AI systems. Perfect for notifications, alerts, and automated messaging.

Features β€’ Installation β€’ Tools β€’ Usage β€’ Configuration


✨ Features

🌐 Generic Webhook Support

  • Works with any webhook endpoint
  • Compatible with Discord, Slack, Mattermost
  • Custom HTTP POST requests
  • JSON payload formatting

🎨 Customization

  • Custom display name (username)
  • Avatar URL support
  • Flexible message content
  • Easy integration with any platform

πŸ”Œ MCP Integration

  • Works with Dive Desktop
  • Claude Desktop compatible
  • Cursor, VS Code support
  • Any MCP-compatible LLM

πŸ›‘οΈ Simple & Secure

  • Minimal configuration
  • Environment variable support
  • No tracking or analytics
  • MIT licensed

Webhook Server MCP server


πŸš€ Installation

Getting Started

Add the following config to your MCP client:

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

MCP Client Configuration

Dive
  1. Open Dive Desktop
  2. Click "+ Add MCP Server"
  3. Paste the config provided above
  4. Click "Save" and you're ready!
Claude Code

Use the Claude Code CLI to add the webhook MCP server (guide):

claude mcp add webhook -- npx @kevinwatt/mcp-webhook

Then set the webhook URL in your environment or config.

Claude Desktop

Add to your claude_desktop_config.json:

  • macOS: ~/Library/Application Support/Claude/claude_desktop_config.json
  • Windows: %APPDATA%\Claude\claude_desktop_config.json
  • Linux: ~/.config/Claude/claude_desktop_config.json
{
  "mcpServers": {
    "webhook": {
      "command": "npx",
      "args": ["-y", "@kevinwatt/mcp-webhook"],
      "env": {
        "WEBHOOK_URL": "your-webhook-url"
      }
    }
  }
}
Cursor

Go to Cursor Settings -> MCP -> New MCP Server. Use the config provided above.

VS Code / Copilot

Install via the VS Code CLI:

code --add-mcp '{"name":"webhook","command":"npx","args":["-y","@kevinwatt/mcp-webhook"],"env":{"WEBHOOK_URL":"your-webhook-url"}}'

Or follow the MCP install guide with the standard config from above.

Windsurf

Follow the configure MCP guide using the standard config from above.

Cline

Follow Cline MCP configuration guide and use the config provided above.

Warp

Go to Settings | AI | Manage MCP Servers -> + Add to add an MCP Server. Use the config provided above.

JetBrains AI Assistant

Go to Settings | Tools | AI Assistant | Model Context Protocol (MCP) -> Add. Use the config provided above.

Installing via Smithery

To install MCP Webhook Server for Claude Desktop automatically via Smithery:

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

Manual Installation

npm install -g @kevinwatt/mcp-webhook

πŸ› οΈ Available Tools

ToolDescription
send_message

Send a message to the configured webhook endpoint

  • Parameters:
    • content (string, required): Message content to send
    • username (string, optional): Custom display name
    • avatar_url (string, optional): Custom avatar URL
  • Returns: Success/failure status

πŸ’‘ Usage Examples

Basic Messages

"Send a message to webhook: Hello World!"
"Send 'Build completed successfully' to the webhook"
"Notify the team: Deployment finished"

Custom Username

"Send a message with username 'Deploy Bot': Production update complete"
"Send content='Server restarted', username='System Monitor'"

With Avatar

"Send a message with custom avatar: content='Alert!', avatar_url='https://example.com/alert.png'"

Automation Examples

"Send a webhook message when the build completes"
"Notify via webhook: All tests passed!"
"Send deployment status to the webhook channel"

πŸ”§ Configuration

Environment Variables

VariableDescriptionRequired
WEBHOOK_URLThe webhook endpoint URLYes

Example Configurations

Discord Webhook:

{
  "env": {
    "WEBHOOK_URL": "https://discord.com/api/webhooks/..."
  }
}

Slack Incoming Webhook:

{
  "env": {
    "WEBHOOK_URL": "https://hooks.slack.com/services/..."
  }
}

Mattermost Webhook:

{
  "env": {
    "WEBHOOK_URL": "https://your-mattermost.com/hooks/..."
  }
}

πŸ—οΈ Architecture

Built With

  • MCP SDK - Model Context Protocol
  • Axios - HTTP client
  • TypeScript - Type safety and developer experience

Key Features

  • βœ… Simple: Minimal setup, just provide a webhook URL
  • βœ… Flexible: Works with any webhook-compatible service
  • βœ… Type-Safe: Full TypeScript support
  • βœ… Lightweight: Minimal dependencies

🀝 Contributing

Contributions are welcome!

  1. Fork the repository
  2. Create a feature branch (git checkout -b feature/amazing-feature)
  3. Commit your changes (git commit -m 'Add amazing feature')
  4. Push to the branch (git push origin feature/amazing-feature)
  5. Open a Pull Request

πŸ“ License

This project is licensed under the MIT License - see the LICENSE file for details.


πŸ™ Acknowledgments

  • Anthropic - For the Model Context Protocol
  • Dive - MCP-compatible AI platform

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