Pokémon Data MCP Server for Pokémon Information Lookup

Overview

Poke-MCP is a Model Context Protocol (MCP) server that provides Pokémon information through a standardized interface. It connects to the PokeAPI to fetch Pokémon data and exposes it through MCP tools that can be used by any MCP-compatible client, such as Claude Desktop App, Continue, Cline, and others.

This server now supports HTTP transport using Server-Sent Events (SSE) for real-time communication, making it accessible over HTTP instead of just stdio.

Features

Get information about specific Pokémon by name
Discover random Pokémon
Find random Pokémon from specific regions (Kanto, Johto, Hoenn, etc.)
Get random Pokémon of specific types (Fire, Water, Electric, etc.)
Natural language query interface for Pokémon information

How It Works

Poke-MCP is built using the Model Context Protocol, which enables AI applications to access external tools and data sources in a standardized way. The server:

Connects to the PokeAPI to fetch Pokémon data
Exposes several tools through the MCP interface
Processes requests from MCP clients
Returns formatted Pokémon information

MCP Tools

The server provides the following tools:

get-pokemon: Get detailed information about a specific Pokémon by name
random-pokemon: Get information about a random Pokémon
random-pokemon-from-region: Get a random Pokémon from a specific region
random-pokemon-by-type: Get a random Pokémon of a specific type
pokemon-query: Answer natural language queries about Pokémon

Architecture

The server is built using:

TypeScript
MCP TypeScript SDK (@modelcontextprotocol/sdk)
Zod for input validation
HTTP transport with Server-Sent Events (SSE) for MCP communication
Node.js built-in HTTP server

Installation

Installing via Smithery

To install Pokémcp for Claude Desktop automatically via Smithery:

npx -y @smithery/cli install @NaveenBandarage/poke-mcp --client claude

Manual Installation

# Clone the repository
git clone https://github.com/yourusername/poke-mcp.git
cd poke-mcp

# Install dependencies
npm install

# Build the project
npm run build

Usage

Running the HTTP Server

To start the server in HTTP mode:

# Start the server (defaults to port 3000)
npm start

# Or specify a custom port
PORT=8080 npm start

The server will be available at:

Info endpoint: http://127.0.0.1:3000/ - Server information and status
SSE endpoint: http://127.0.0.1:3000/sse - Server-Sent Events connection for MCP clients
Message endpoint: http://127.0.0.1:3000/message - POST endpoint for sending MCP messages

With Claude Desktop App (HTTP Transport)

Download and install Claude Desktop App
Open Claude Desktop settings
Go to Developer settings and edit the config file
Add the following configuration for HTTP transport:

{
  "mcpServers": {
    "pokedex": {
      "transport": {
        "type": "sse",
        "url": "http://127.0.0.1:3000/sse"
      }
    }
  }
}

Start the Poke-MCP server: npm start
Restart Claude Desktop
You should now see the Pokémon tools available in Claude

Legacy Usage (stdio)

For backward compatibility, you can still run the server with stdio transport by reverting to the stdio implementation.

Example Queries

Once connected to an MCP client, you can ask questions like:

"Tell me about Pikachu"
"Give me a random Pokémon"
"Show me a random Pokémon from Kanto"
"What's a random Water Pokémon?"

Project Structure

src/index.ts: Main server implementation
src/types.ts: TypeScript type definitions for Pokémon data
package.json: Project dependencies and scripts
tsconfig.json: TypeScript configuration

Adding New Features

To add new tools or enhance existing ones:

Define new helper functions to fetch and format data
Register new tools using the server.tool() method
Implement the tool logic to handle requests and return responses

License

ISC

Acknowledgments

PokeAPI for providing the Pokémon data
Model Context Protocol for the standardized interface

This project demonstrates how to build custom MCP servers that can extend AI assistants with domain-specific knowledge and capabilities.