Electronic commerce is a domain continually evolving. However, the potential of the commerce on the Internet is far from being completely exploited today. There are many elements that could be easily automated and endowed with intelligence, especially using agents. This paper presents the process of developing an e- commerce application modelling the co®ee market in Veracruz, Mexico, using intelligent and mobile agents implemented in the CLAIM agent-oriented programming language and deployed on the SyMPA platform.