META coin is Metadium's system token, which supports the entire Metadium ecosystem. It is mainly used as a medium for identity transactions, and can also be used for authentication services and to reward users.

Metadium is the next generation of identity protocol layer in the Internet age. It is based on the decentralized identity architecture, allowing different users to seamlessly access the Metadium identity ecosystem. It can also develop a variety of decentralized applications using the Meta ID blockchain infrastructure protocol. And communities form around each application. In the decentralized identity infrastructure, META coins act as a medium of exchange to complete identity authentication and sharing. The identity information provided by users must be verified by the certification body for service providers to access, and the service providers need to issue META coins to reward the certification body and users. Users can also use META to purchase identity related services provided by Metadium or other providers.