Changelly is one of leading instant cryptocurrency exchanges operating since 2015 and supporting over 80 alts and tokens. The service is also partnered with Jaxx, Coinmarketcap, Bitrexx, Coinpayments, Coinomi and other reputable companies. Changelly provides instant cross-currency swapping and accepts Visa/MC payments. The exchange processes over $150 MLN monthly for 700k customers from around the world enabling them to switch between large sums of coins without any amount restrictions.
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https://www.coinstaker.com/changelly-cr ... -exchange/