Crypto Exchange Fix API

The Financial Information eXchange (“FIX”) Protocol is a series of messaging specifications for the electronic communication of trade-related messages. This protocol has been developed through collaboration of multiple financial players, such as banks, broker leaders, exchanges, and, being vital to many trading and order management systems, has become leading trade-communication protocol.

CEX.IO supports the FIX protocol version 4.4. and offers FIX API exclusively to institutional traders.

To get access, please submit a request to