Tagger is a decentralized AI data solution designed to enhance data authentication and authorization. This platform creates a comprehensive protocol for cross-border data management, enabling seamless data collection, labeling, and trading without permission barriers. By harnessing the power of Web 3, Tagger effectively utilizes crowdsourcing to improve data labeling and collection processes. This innovative approach addresses common challenges in the data ecosystem such as data silos and the complexities surrounding data authentication. The integration of blockchain technology ensures that the data transactions within Tagger are secure and transparent. This not only enhances trust among users but also facilitates efficient trading of data assets. Tagger aims to solve the shortage of professional annotators by creating a robust marketplace where data can be accurately managed and traded. Through its unique offerings, Tagger positions itself as a vital resource for individuals and organizations seeking reliable and authenticated data solutions.