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Muppet Kit MCP Server

@muppet-dev

Repository

Basic information

Category

Other

License

MIT

Transports

stdio

Author

muppet-dev

About Muppet Kit MCP Server

Debugging and Testing tool for MCP servers

#visual-testing#mcp-servers#testing-tool

Muppet Kit MCP Server config

Add this server to your MCP-compatible client using the configuration below.

{
  "mcpServers": {
    "kit": {
      "command": "npx",
      "args": [
        "muppet-kit",
        "inspector"
      ]
    }
  }
}

Muppet Kit MCP Server tools

Tool list not available yet

This listing does not currently have a tool list to display. This does not mean the server has no tools; check its documentation for supported capabilities.

Fetch the live tool list by running this server in a temporary sandbox using the button above.

Overview

What is Muppet Kit?

Muppet Kit is a collection of tools for testing and debugging MCP (Model Context Protocol) servers. It is designed for developers who build or maintain MCP servers and need a graphical interface to inspect, test, and secure their implementations.

How to use Muppet Kit?

Run npx muppet-kit inspector in your terminal to launch the Inspector tool. You can optionally configure it by creating a muppet.config.js or muppet.config.ts file in your project root.

Key features of Muppet Kit

  • Explorer: Browse MCP server capabilities with AI assistance.
  • Playground: Test the MCP server with different LLMs and configurations.
  • MCP Scan: Scan the MCP server for vulnerabilities and security issues.
  • Tracing: Trace requests and responses between client and server (supports tunneling).
  • History: View a session history of all requests and responses.

Use cases of Muppet Kit

  • Debug an MCP server during development to verify its capabilities.
  • Run security scans to detect vulnerabilities in an MCP server.
  • Test MCP server behavior with various LLMs and configurations.
  • Monitor and trace communication between an MCP client and server.

Frequently asked questions

1

What is Muppet Kit?

It is a collection of tools for testing and debugging MCP servers, modeled after the official MCP Inspector.

2

How do I install Muppet Kit?

No installation is required; run directly via `npx muppet-kit inspector`.

3

Can I configure Muppet Kit?

Yes, you can create a `muppet.config.js` or `muppet.config.ts` file to set options like models and tunneling (e.g., ngrok).

4

What features does the Inspector include?

The Inspector includes Explorer, Playground, MCP Scan, Tracing, and History features.

5

Does Muppet Kit support remote clients?

Yes, the Tracing feature supports tunneling for connecting to remote clients (e.g., via ngrok).

Comments

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