OpenPotato is an initiative by the Berlin-based company STÜBER SYSTEMS GmbH, focused on building open-source software, open standards, and API-first open data services.

Our projects provide freely accessible infrastructure for developers, companies, researchers, educational institutions, and public services. This includes APIs such as OpenHolidays API and OpenPLZ API, standardization projects like OpenCodeList and OpenT8, as well as privacy-friendly tools and developer utilities like RESTCaptcha.

We believe that open data and open standards create transparency, interoperability, innovation, and long-term sustainability. That is why we invest in building reliable public APIs, maintaining datasets, publishing specifications, improving documentation, and operating open infrastructure for the community.

Sponsorship helps us cover hosting, maintenance, monitoring, development time, and the long-term operation of these services. Your support directly contributes to keeping these projects open, stable, and freely available for everyone.

Thank you for supporting open infrastructure and open data.