Changelly is not available in the United States, and the exclusion is total rather than state by state. Its terms bar residents of the U.S. and its territories, naming Puerto Rico, Guam, American Samoa, the Northern Mariana Islands and the U.S. Virgin Islands, and its site blocks U.S. IP addresses. Changelly cites regulatory constraints, which is a fair description: it holds no FinCEN registration and no state money transmitter license, and it has chosen not to serve the market rather than obtain them. Using a VPN to get around the block violates its terms and is the surest way to end up with a swap on hold.
For a U.S. searcher the practical question is what to use instead. Anytime Capital is a U.S. money services business headquartered in Atlanta, with a branch on Piedmont Road, an office in Miami's One Biscayne Tower, a phone number at (470) 748-2530, and nine ways to pay, including cash in branch, cash by mail, same-day wire, ACH, Cash App, Apple Pay, Google Pay and cards. Card pricing starts from 4% with the spread included, coins go to a non-custodial wallet, and the dollar side lives in an FDIC-insured cash account with a free virtual debit card. It serves the customer Changelly turns away, and customers everywhere else.