What is Changelly primarily used for?

Changelly is primarily recognized as a cryptocurrency exchange platform that facilitates the swapping of one cryptocurrency for another. Its utility lies in providing users with the ability to easily convert various crypto assets without the need for an account, making it a popular choice for those looking to trade cryptocurrencies in a seamless manner. This service typically provides real-time market rates, allowing users to exchange coins quickly and efficiently while avoiding the complex processes often involved with traditional exchanges.

The other options focus on different aspects of cryptocurrency. Storing Bitcoin securely pertains to wallet services, which are designed to keep digital assets safe. Mining new cryptocurrencies involves using computational power to validate transactions on a blockchain and create new coins, which is not the function of Changelly. Creating new blockchain protocols is associated with development and innovation in blockchain technology rather than the trading functionalities offered by Changelly. Therefore, the primary use of Changelly for exchanging cryptocurrencies is the most accurate representation of its service.