Hyperledger Fabric, like Sawtooth, is designed to be an enterprise-oriented blockchain solution that is highly modular and customizable. Hyperledger Fabric is both private and permissioned. This means that, like Sawtooth, by default Hyperledger blockchains are not observable to the public at large and are not and will not have tokens that are tradeable on exchanges. Users of the blockchain must have validated identities and join the blockchain by using a Membership Service Provider (MSP). These MSPs are configured on the system, and there can be more than one, but all members must successfully be granted access by one or more MSPs. Fabric also has a number of special tools that make it particularly full-featured, which we will cover later.