Top 5 worldcup open source projects

Free open public domain football data for the world cups in JSON incl. Russia 2018 and more - No API key required ;-)

WorldCupBot will notify a Slack channel/group for every match during a FIFA World Cup

footty gem - football.db command line client for european ("euro") championship 2020 (in 2021) and more - who's playing today?

An easy command line interface for the 2018 World Cup

Free open public domain football data for the World Cup (incl. Qatar 2022, Russia 2018, Brazil 2014, etc.) and World Cup Quali(fiers)