mtg

This MCP server provides a comprehensive Magic: The Gathering Commander data toolkit. It exposes a collection of AI-callable functions (Tools) that query Scryfall for card data, rulings, pricing, legality, and deck validation. It also offers Moxfield integration to fetch and search public decks, and EDHREC metadata to surface recommendations and popular combos. You can connect to the server using MCP-compatible clients (like Claude Desktop or Claude Code) over standard IO, and then invoke functions such as search_cards, get_card_details, check_commander_legality, get_card_price, validate_deck, and the Moxfield/EDHREC tools. The server returns rich card information (oracle text, mana costs, types, color identity, formats legality, rulings, prices in USD/EUR/BRL), plus deck and deck-building insights.

Prerequisites:

• Go 1.25 or later
• Internet access (for Scryfall data and currency conversion)

Building from source:

# Clone or navigate to the project directory
git clone https://github.com/nathanmartins/mtg-mcp.git
cd mtg-mcp

# Install dependencies
go mod tidy

# Build the MCP server
go build -o mtg-commander-server

The compiled binary mtg-commander-server is the MCP server binary you can run directly. You can also place it in a directory of your choice and reference it in your MCP client configurations.

Tips and notes:

• The server relies on the Scryfall API and currency conversion; ensure your network allows outbound HTTP requests.
• By default, the binary exposes an stdio-based transport suitable for Claude Desktop/Code integrations; you can connect via the provided mcp configuration payloads.
• If you change the binary location, update your Claude Desktop or Claude Code configurations to point to the absolute path of the mtg-commander-server binary.
• The npm_package field is null because this server is implemented in Go, not as a Node.js package.