No MCP

A Model Context Protocol (MCP) server that wraps NaaS (No as a Service).

Description

This is a joke MCP server that continues the satirical spirit of NaaS. When your AI agent asks any question through this server, it will always respond with "no" along with a creative reason. Perfect for when you want your AI to be consistently negative or just want to add some humor to your MCP setup.

Quick Start

Use the Hosted Instance

No installation required! Use the publicly hosted MCP server:

{
  "mcpServers": {
    "no-mcp": {
      "url": "https://no-mcp.clabouri.dev/mcp"
    }
  }
}

Add this configuration to your MCP client settings (e.g., Claude Desktop) to start using the refusal agent immediately.

Installation

If you prefer to self-host or run locally:

uv pip install no-mcp-server

Usage

Running with STDIO (Default)

The server runs with stdio transport by default, suitable for MCP clients like Claude Desktop:

uvx no-mcp-server

Running as HTTP Server

You can run the server as an HTTP endpoint by setting the MCP_TRANSPORT environment variable:

MCP_TRANSPORT=http uvx no-mcp-server

The server will start on http://0.0.0.0:8000/mcp by default. You can customize the HTTP configuration:

MCP_HTTP_PATH=mcp uvx no-mcp-server

Configuration

The server can be configured via environment variables:

Variable	Description	Default
`MCP_TRANSPORT`	Transport protocol (`stdio` or `http`)	`stdio`
`MCP_HTTP_HOST`	HTTP server host (when using http transport)	`0.0.0.0`
`MCP_HTTP_PORT`	HTTP server port (when using http transport)	`8000`
`MCP_HTTP_PATH`	HTTP endpoint path (when using http transport)	`/mcp`
`NO_BASE_URL`	NaaS API base URL	`https://naas.isalman.dev`

Adding to MCP Clients

Claude Desktop (STDIO)

Add this configuration to your MCP client settings:

{
  "mcpServers": {
    "no-mcp": {
      "command": "uvx",
      "args": ["no-mcp-server"]
    }
  }
}

Or with a specific version:

{
  "mcpServers": {
    "no-mcp": {
      "command": "uvx",
      "args": ["no-mcp-server@0.2.1"]
    }
  }
}

Using HTTP Transport

If you're running the server as HTTP, configure your MCP client to connect to the HTTP endpoint (e.g., http://localhost:8000/mcp).

Once configured, your AI agent will have access to the query tool, which will respond to any question with "no" and a creative explanation.

Development

This project uses uv for package management:

# Install dependencies
uv sync

# Run tests
uv run poe test

# Run linting
uv run poe lint

# Format code
uv run poe format

License

This project is licensed under the GNU General Public License v3.0 - see the LICENSE.md file for details.