weeSeepy is a small (wee) constraint programming (seepy) toolkit, written in Java, inspired by Mini-CP and Choco.

weeSeepy is an ongoing development project. It is intended that weeSeepy will be used for teaching constraint programming, allowing students and project students to get under the hood and see how a CP toolkit might be implemented. Therefore, it can be used in the classroom and by project students.

Of course, we always want to combine teaching with research. Being small, and using simple design concepts, it is possible for an individual to fully understand weeSeepy and have full control of weeSeepy. Therefore researchers may use weeSeepy to test out new constraints, variable and value ordering heuristics and new search algorithms. A recent example of this is the work by Gilles Pesant where used mini-CP in this paper.