Cosmos is an interoperability chain for all other chains. Apps and services connect using IBC (Inter-Blockchain Communication) protocol. It helps with:
The ATOM coin is used only for staking and developers don't have to pay to use the SDK. This made the platform popular amongst Indian and Chinese developers. It also means that platform traffic does not necessarily inflates the price.
The vision of Cosmos is to make it easy for developers to build blockchains and break the barriers between blockchains by allowing them to transact with each other. The end goal is to create an Internet of Blockchains, a network of blockchains able to communicate with each other in a decentralized way.
This is achieved through a set of open source tools like:
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