This document discusses intelligent agent roaming for mobile commerce (M-commerce). It introduces some key challenges with M-commerce like security and lack of intelligence. Intelligent agents are proposed as a solution, but agent roaming introduces new security issues. The document then describes the SAFE transport protocol, which provides secure roaming for agents. SAFE uses supervised and unsupervised agent transport protocols, which involve agents getting permits from receptionists to safely roam between hosts while protecting sensitive data and functions.