Swissquote is a Forex liquidity provider that supports FIX API trading
The Financial Information eXchange (FIX) protocol is an international standard for electronic trading developed to enable greater connectivity among market participants.
Swissquote’s API can be plugged into your trading platform to exchange trade information with their server based on the FIX 4.4 protocol.
Your system can then be easily set up to access streaming and historical price quotes, as well as place market or limit orders over secure communication channels.
Integrate any custom platform into the secure environment of a regulated Swiss bank.
The only requirement to use their FIX API is to have a minimum deposit on your account of $50,000.