Holdsport is a German website that helps coaches and organizations manage teams and clubs for all kinds of sports. The site provides useful tools like an online calendar, a registration and dues collection system, and a free texting service that lets coaches contact all of their players at once. Holdsport can also be used to keep track of players' contact information and game statistics. Additionally, people can buy sportswear and gear made by companies like Hummel through the website.
Users can interact with the site's functions programmatically via REST API. Although the Holdsport API documentation is provided in English, the Holdsport website is given solely in German.