FIPA specifications represent a collection of standards which are intended to promote the interoperation of heterogeneous agents and the services that they can represent, see this paper for an overview of the FIPA approach.
In 2002, FIPA completed a process of standardising a sub-set
of all its specifications. The sub-set of 25 specifications that
made it to standardisation stage is found here.
The complete set of specifications including the ones that did
not or have not yet made it to standardisation can be viewed in
terms of different categories:
agent communication, agent transport, agent management, abstract
architecture and applications. Of these categories, agent
communication is the core category at the heart of the FIPA
multi-agent system model.
There are several alternative viewpoints of the specifications,
see the repository link
for more details.