Tools for Humanity develops the Worldcoin project, which provides proof of personhood through biometric iris scanning to verify human identity online, along with the World App, a mobile application launched in version update on December 11, 2025. The company builds software and hardware to support the Worldcoin protocol and blockchain-based digital identity technologies for global users. It employs over 500 scientists, engineers, and other staff. Alex Blania serves as co-founder and CEO, while Sam Altman is co-founder and Chairman. The company raised $240 million in a funding round. It maintains headquarters in San Francisco, United States, and Munich, Germany.