A middleware API and SDK that platforms integrate to verify a user's age bracket using zero-knowledge proofs and tokenized credentials. Users verify once through a trusted credential issuer (bank, telco, or government ID provider), then receive a reusable cryptographic token that confirms only their age threshold—no name, birthdate, or documents are shared with the requesting platform. The service handles cross-platform compatibility including mobile OS restrictions.

A wave of age verification legislation is passing simultaneously across US states and internationally, creating urgent compliance demand. Platforms face enforcement deadlines but have no privacy-respecting solution, and public backlash against surveillance-style verification is intensifying—making privacy-first alternatives commercially viable and politically attractive.