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Alfacash is an eight-year-old and duly regulated cryptocurrency exchange.
Kyber is the decentralized liquidity aggregator that ensures swap of various tokens. Due to the on-chain liquidity protocol, Kyber allows for quick exchange of tokens in any decentralized application. 
Margex is a next-generation cryptocurrency exchange for derivative trading, founded in 2019. It has rapidly gained the trust and recognition of thousands of users as a thriving platform where you can engage in leveraged trading up to 100x with cryptocurrencies such as Bitcoin, Ethereum, Polygon, and many others paired with the US Dollar.