FIXopaedia is the fastest, most comprehensive and feature rich FIX reference source available. B2BITS’ FIXopaedia is built on top of our complete FIX Dictionaries and allows the user to examine the elements required for any FIX message across versions 4.0 to 5.0 of the Protocol. Please click below to see the full logical specification of every message and tag type for the version of FIX that you require.
FIXopaedia covers both session and application level messages and allows the protocol to be examined by:
http://b2bits.com/fixopaedia/index.html