Prelude
https://prelude.io an altcoin exchange, is now live and in open beta! Currently, BTC/CRYPTO pairing is enabled on the platform - with FIAT/CRYPTO coming in the next 2 weeks! During the beta, trading fees are set to zero percent.
Prelude requires a Moolah
https://moolah.io account which is free. You can create one in the next step if you don't already have one, and if you login to that account over at Moolah - you can configure features such as two-factor security. In the near future, you'll also be able to topup your FIAT balances almost instantly.
If you do not already have an account, we recommend creating a consumer account for simplicity. Withdrawals are manual right now, but should be automatically processed by midnight GMT time.