Title: An Algorithm for Inferring Quasi-Static Types Author: Alberto Oliart Date: November 1994 Abstract: This report presents an algorithm, and its implementation, for doing type inference in the context of Quasi-Static Typing (QST) ["Quasy-static Typing." Satish Thatte Proc. ACM Symp. om Principles of Programming Languages, 1988]. The package infers types a la ``QST'' for the simply typed lambda-calculus.