Show HN: Kickoff the World Cup with 49k match results from 1872 to 2026

Ask an AI agent grounded questions about international soccer results, no setup ceremony required. This MCP server boots straight into a Calypso-powered World Cup demo corpus: 150 years of match history, ready for source-backed answers.

Built with Calypso. Learn more in the Calypso docs.

npx -y @calypsohq/soccer-rag-mcp-server

That is it. No API key, no dashboard setup, no copy-pasting secrets. The server connects to the same World Cup RAG corpus as the RAG landing demo.

This is the source-grounded research surface behind the World Cup Results Demo:

• 4 indexed CSV sources
• 49,393 match results from 1872 to 2026
• Results, tournaments, venues, shootouts, goalscorers, and historical team names
• Fast grounded answers by default, with citations from the soccer results corpus
• Read-only demo mode powered by calypso-rag-agent:worldcup

Source trail:

results.csv

: match results and venues, 49,393 rowsshootouts.csv

: shootout winners and first shootersgoalscorers.csv

: scorers, penalties, and own goalsformer_names.csv

: historical team-name changes for 36 teams

• Who are the best men's national soccer teams of all time? Rank them using the results corpus and cite your evidence.
• Which national teams dominated each era of international soccer from 1872 to 2026?
• Compare Brazil and Germany across World Cup eras using match results from the corpus.
• How strong is home advantage in international soccer, and has it changed over time?
• Does hosting a major tournament improve a country's performance? Use the corpus to show why or why not.
• What patterns stand out in international penalty shootouts? Use shootouts.csv

and cite examples.

• Grounded answers from calypso-rag-agent:worldcup

• Citation-rich responses through the Calypso Responses API

• Handy resources like soccer://corpus-info

andsoccer://starter-prompts

• A clean ask-world-cup-soccer

MCP tool for match-history questions - A read-only demo surface, so agents can explore safely

Add this to your Claude Desktop MCP config:

{
  "mcpServers": {
    "world-cup-soccer": {
      "command": "npx",
      "args": ["-y", "@calypsohq/soccer-rag-mcp-server"]
    }
  }
}

Restart Claude Desktop, then ask Claude to use world-cup-soccer

for grounded soccer questions. The primary tool is ask-world-cup-soccer

.

Want to use your own Calypso project with upload and bucket tools enabled?

CALYPSO_API_KEY=sk-... npx -y @calypsohq/soccer-rag-mcp-server

BYOK mode switches from the public World Cup demo into your own Calypso knowledge workspace.

For Claude Desktop BYOK mode, add an env

block:

{
  "mcpServers": {
    "world-cup-soccer": {
      "command": "npx",
      "args": ["-y", "@calypsohq/soccer-rag-mcp-server"],
      "env": {
        "CALYPSO_API_KEY": "sk-..."
      }
    }
  }
}
npm install
npm test
npm run smoke:stdio