FIX API
A FIX API uses the Financial Information eXchange protocol for institutional trading connectivity. It is widely used by banks, brokers, market makers and professional trading firms.
Definition and Infrastructure Context
FIX API should be understood in the context of regulated exchange infrastructure, where terminology affects system design, operating rules, market participant workflows and post-trade controls.
ADEX Technology links this definition to relevant exchange technology, clearing, settlement, market infrastructure and operational control pages so institutional readers can understand how the term is used across the infrastructure stack.