Prolog MCP server

Prolog MCP is a server that provides tools for executing Prolog code, querying the Prolog engine, and searching existing predicates. It integrates with Claude Desktop via the Model Context Protocol (MCP) to extend functionality with Prolog capabilities.

Installation Options

Installing via Smithery

The easiest way to install Prolog MCP is through Smithery, which automatically handles the installation process:

npx -y @smithery/cli install @snoglobe/prolog_mcp --client claude

This command installs Prolog MCP specifically for use with Claude Desktop.

Manual Installation

For manual installation:

1. Build the source code to create an executable
2. Add the full path to the executable in your MCP configuration file
3. No additional arguments are needed when adding the path

Using Prolog MCP

Once installed, Prolog MCP provides several capabilities:

Executing Prolog Code

You can execute Prolog queries directly through the MCP interface. The Prolog engine will process your code and return results.

Querying Predicates

Use the MCP to run queries against the Prolog knowledge base and receive logical results based on the defined facts and rules.

Searching Existing Predicates

The MCP allows you to search through existing predicates to find relevant definitions and examples that match your search criteria.

Configuration

After installation, Prolog MCP should be automatically configured if you used Smithery. For manual installations, ensure the path to the executable is correctly specified in your MCP configuration.

How to add this MCP server to Cursor

There are two ways to add an MCP server to Cursor. The most common way is to add the server globally in the ~/.cursor/mcp.json file so that it is available in all of your projects.

If you only need the server in a single project, you can add it to the project instead by creating or adding it to the .cursor/mcp.json file.

Adding an MCP server to Cursor globally

To add a global MCP server go to Cursor Settings > MCP and click "Add new global MCP server".

When you click that button the ~/.cursor/mcp.json file will be opened and you can add your server like this:

{
    "mcpServers": {
        "cursor-rules-mcp": {
            "command": "npx",
            "args": [
                "-y",
                "cursor-rules-mcp"
            ]
        }
    }
}

Adding an MCP server to a project

To add an MCP server to a project you can create a new .cursor/mcp.json file or add it to the existing one. This will look exactly the same as the global MCP server example above.

How to use the MCP server

Once the server is installed, you might need to head back to Settings > MCP and click the refresh button.

The Cursor agent will then be able to see the available tools the added MCP server has available and will call them when it needs to.

You can also explictly ask the agent to use the tool by mentioning the tool name and describing what the function does.