MCPet MCP server

This MCP server provides a nostalgic virtual pet experience reminiscent of Tamagotchi toys but powered by AI through the Model Context Protocol. You can adopt, nurture, and play with your digital companion, watching it evolve from a baby to an adult based on your care and interaction.

Installation

Using Smithery

The simplest way to install MCPet is via Smithery:

npx -y @smithery/cli install @shreyaskarnik/mcpet --client claude

Manual Setup

To manually configure MCPet with Claude Desktop, add the server configuration to Claude's config file:

On MacOS:

~/Library/Application Support/Claude/claude_desktop_config.json

On Windows:

%APPDATA%/Claude/claude_desktop_config.json

Add the following configuration:

{
  "mcpServers": {
    "mcpet": {
      "command": "node",
      "args": ["/path/to/mcpet/build/index.js"],
      "env": {
        "PET_DATA_DIR": "/path/to/writable/directory"
      }
    }
  }
}

Important: Set PET_DATA_DIR to a directory where you have write permissions. This is where your pet's data will be stored.

Debugging

If you need to test your MCPet interactions directly, use the MCP Inspector:

npx @modelcontextprotocol/inspector node /path/to/mcpet/build/index.js

Using Your Virtual Pet

Once installed, you can interact with your pet through Claude by asking questions or giving commands.

Pet Types

Choose from four different pet types:

• Cat - Slightly moody but lovable
• Dog - Energetic and always happy to see you
• Dragon - Unique and fiery personality
• Alien - Mysterious and curious

Basic Interactions

Here are some commands you can use with Claude:

• Create a pet: "Can you create a cat pet named Whiskers?"
• Check status: "How is my pet doing?"
• Feed your pet: "Can you feed my pet a meal?"
• Play with your pet: "I'd like to play chase with my pet"
• Clean your pet: "My pet looks dirty, can you give it a bath?"
• Let your pet rest: "My pet seems tired, can you put it to bed?"

Pet Care Features

Feeding Options

• Snack: Small hunger boost
• Meal: Balanced nutrition
• Feast: Maximum feeding (can be unhealthy if overused)

Play Activities

• Ball: Light exercise
• Chase: High energy fun
• Puzzle: Mental stimulation

Managing Stats

Your pet has five key stats to monitor:

• Hunger: Keep your pet well-fed
• Happiness: Maintain through play and interaction
• Health: Overall wellbeing affected by other stats
• Energy: Depletes with activity, restored by sleep
• Cleanliness: Maintain through regular baths

Your pet will grow through different life stages (Baby, Child, Teen, Adult) and its needs will evolve over time. Even when you're not actively interacting, your pet's stats will change, creating a persistent virtual companion experience.

How to install this MCP server

For Claude Code

To add this MCP server to Claude Code, run this command in your terminal:

claude mcp add-json "mcpet" '{"command":"node","args":["/path/to/mcpet/build/index.js"],"env":{"PET_DATA_DIR":"/path/to/writable/directory"}}'

See the official Claude Code MCP documentation for more details.

For 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 > Tools & Integrations and click "New MCP Server".

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

{
    "mcpServers": {
        "mcpet": {
            "command": "node",
            "args": [
                "/path/to/mcpet/build/index.js"
            ],
            "env": {
                "PET_DATA_DIR": "/path/to/writable/directory"
            }
        }
    }
}

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 explicitly ask the agent to use the tool by mentioning the tool name and describing what the function does.

For Claude Desktop

To add this MCP server to Claude Desktop:

1. Find your configuration file:

• macOS: ~/Library/Application Support/Claude/claude_desktop_config.json
• Windows: %APPDATA%\Claude\claude_desktop_config.json
• Linux: ~/.config/Claude/claude_desktop_config.json

2. Add this to your configuration file:

{
    "mcpServers": {
        "mcpet": {
            "command": "node",
            "args": [
                "/path/to/mcpet/build/index.js"
            ],
            "env": {
                "PET_DATA_DIR": "/path/to/writable/directory"
            }
        }
    }
}

3. Restart Claude Desktop for the changes to take effect