Abstract: Systems and methods are provided for creating and modifying smart contracts. A method for creating a smart contract can include receiving one or more commands that include a parameter for the smart contract and generating, based on the one or more commands, an entry that is part of an agreement structure. The method can also include receiving input from different devices that approve the entry in the agreement structure as well as generating one or more milestones associated with the smart contract. The milestones can be converted and saved using a distributed ledger technology such as blockchain.