zafronix/wc-mcp

by Zafronix · npm: @zafronix/wc-mcp · MIT-licensed

wc-mcp MCP server

Model Context Protocol server giving Claude / Cursor / any MCP-aware agent grounded access to every FIFA World Cup since 1930. 23 tournaments. 1,168+ matches. 2,500+ players. 206 stadiums. All exposed as 15 typed tools so the model stops hallucinating squads, scores, brackets, and stadium altitudes.

Powered by the public Zafronix World Cup API — free tier with key, 1,000 req/day, no card.

Why

LLMs are unreliable on:

• Exact tournament results from before the trained-data window.
• Roster details (jersey numbers, DOBs, captains).
• Knockout-round paths and exact scores.
• Stadium facts (capacity, altitude, year opened).

This MCP wraps the Zafronix WC API so the model can call a tool and get the canonical answer instead of guessing.

Install

npm install -g @zafronix/wc-mcp

Or run from source:

git clone https://github.com/zafronix/wc-mcp
cd wc-mcp
npm install
npm run build

Get a free API key

https://api.zafronix.com/signup

1,000 requests/day on the free tier, no card.

Configure (Claude Desktop)

Edit ~/Library/Application Support/Claude/claude_desktop_config.json (macOS) / %APPDATA%\Claude\claude_desktop_config.json (Windows):

{
  "mcpServers": {
    "wc": {
      "command": "npx",
      "args": ["-y", "@zafronix/wc-mcp"],
      "env": {
        "WC_API_KEY": "zwc_pk_your_key_here"
      }
    }
  }
}

Restart Claude Desktop. You'll see a 🔌 icon in the input bar — click it to confirm wc is connected.

Configure (Cursor)

Settings → MCP → Add new server:

{
  "mcpServers": {
    "wc": {
      "command": "npx",
      "args": ["-y", "@zafronix/wc-mcp"],
      "env": { "WC_API_KEY": "zwc_pk_..." }
    }
  }
}

Tools

Example prompts (in Claude Desktop, with this MCP enabled)

• "Compare Pelé and Messi at the World Cup."
• "What was the highest-altitude World Cup stadium ever, and how did goal totals there compare to sea-level venues?"
• "Show me Italy's 2006 squad with positions and clubs."
• "Trace Argentina's 2022 path to the title — every match, every score."
• "List every African nation that has reached the World Cup quarter-finals."

Development

npm run dev          # tsx watch mode
WC_API_KEY=... npm start

The server speaks stdio. You can test it with the MCP CLI:

npx @modelcontextprotocol/inspector npx tsx src/index.ts

License

MIT.