The Data Center Helper Suite (DaCHS) is a collection of Python modules (with some exceptions) to help you in setting up and running a VO-compliant data center. Moreover, some parts of this code are useful for client-side applications.

Currently, DaCHS supports most DAL protocols (SIAP, SCS, TAP), form-based interfaces, a publishing registry, ADQL and some other (less prominent) VO standards, and data management for various kinds of input.