The most active TAG token right now is Tagger (TAG) — if you meant TagCoin, I added it at the bottom.
1. Tagger (TAG) - Main one
What it is:
Tagger is a decentralized, full-stack AI data infrastructure protocol that merges blockchain with AI data pipelines. The platform is designed to address fragmented data access, non-standard verification, and high cost of annotation by introducing a global data authentication protocol based on smart contracts, NFTs, and decentralized identity. They call this new paradigm DeInfra.

Basic Profile:
• Token Name: Tagger • Ticker: TAG • Chain: BSC / BEP-20 as a BEP-20 token • Sector: AI Data / DePIN • Founded by Trevor Xu
How it works:
• Data Authentication Protocol: Datasets are hashed and turned into NFT-based digital rights certificates • DePIN-Powered Infrastructure: Global contributors collect and curate data • AI Co-Pilot + Human-in-the-Loop: AI suggests labels, humans verify via RLHF voting • Decentralized Data Marketplace: Sale and rental of data, licensing, on-chain audit
What TAG is used for:
The TAG token is the native utility token serving operational, economic, and governance functions:
• Task Incentives: Earned by data workers for collection, labeling, cleaning, verification • Access and Utility: Clients spend TAG to create tasks, acquire data rights, access AI services • Governance: Holders vote on protocol upgrades, fee structures, proposals • Transaction Medium: All payments for dataset rental, annotation services, marketplace handling are in TAG • Proof-of-Human-Work (PoHW): Issuance is based on verifiable human effort