KripoDB is the library to interact with Kripo fragment, fingerprint and similarity data files. Pocket, binding site of the ligand in the protein of a crystal structure. Subpocket, part of the protein pocket which binds with the fragment. Fingerprint, fingerprint of structure-based pharmacophore of subpocket. Similarity matrix, similarities between all fingerprint pairs calculated using the modified tanimoto similarity index. Webservice to query for similar fragments.