We present a prototype 3D model search engine called CIL3D (Computational Intelligence Laboratory 3D). CIL3D provides query-by-content 3D model search, by employing a state-of-the-art method [1] for the description of a 3D model, attaining top performance. The search engine is publicly accessible through the internet at: http://emedi3.emedi.iit.demokritos.gr/cil3d/. Categories and Subject Descriptors H.3 [Information storage and retrieval]: Information Search and Retrieval General Terms Application Keywords CIL3D, 3d model, search, engine