Mobile workers doing loosely coupled activities typically perform on demand
collaboration in the physical workplace.Communication services available in
such work scenarios are uncertain, therefore mobile collaborative applications
supporting those activities must provide adhoc communication mechanisms in
order to use each cooperation opportunity. Typically, the complexity of
implementing such mobile adhoc communication mechanisms becomes a challenge
that jeopardizes the development of mobile collaborative solutions. This
article presents a communication infrastructure named HLMP API dealing with
that challenge. HLMP API intends to ease the development of such applications
through the reuse of communication services. The infrastructure is an
application programming interface that implements the HLMP routing protocol and
also some awareness mechanisms that are required for mobile loosely coupled
work. Developers using this infrastructure do not have to perform low-level
programming.