Omni Layer

Starting out in the form of a MasterCoin in 2013, the Omni Layer protocol is one of the most popular meta-protocols based on the Bitcoin blockchain. The Omni Layer offers a different wallet similar to the Bitcoin client and an Omni Layer similar to the Bitcoin core.

Some of the popular tokens built on the Omni Layer platform are Tether, MaidSafeCoin, Synereo, and so on.