# No MCP
[](https://www.gnu.org/licenses/gpl-3.0)
[](https://pypi.org/project/no-mcp-server/)
A Model Context Protocol (MCP) server that wraps [NaaS (No as a Service)](https://github.com/hotheadhacker/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:
```json
{
"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:
```bash
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:
```bash
uvx no-mcp-server
```
### Running as HTTP Server
You can run the server as an HTTP endpoint by setting the `MCP_TRANSPORT` environment variable:
```bash
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:
```bash
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:
```json
{
"mcpServers": {
"no-mcp": {
"command": "uvx",
"args": ["no-mcp-server"]
}
}
}
```
Or with a specific version:
```json
{
"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:
```bash
# 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](LICENSE.md) file for details.
