To build a network on the Cosmos ecosystem, the team recommends using the services of a project called Starport, which was designed for building blockchains and launching them on the Cosmos network. Starport is basically a CLI (Command Line Interface) offering everything needed for building, testing, and launching a blockchain, the protocol is built on top of the Cosmos SDK and also uses Tendermint’s solutions. To interact with an app Cosmos supports, users can visit this link and find the platform they might need. It is important to make sure to have a wallet Cosmos can integrate with, which can also be found through the network’s website where a list of all projects supporting the blockchain is kept updated. When creating a blockchain on Cosmos, fee parameters can be chosen by the developers and can be made to depend on various factors such as the size of the fee compared to the amount of gas needed for the transaction to be executed.