HINT (High quality INTeractomes) is a curated compilation of high quality protein protein interactions from 8 interactome resources (BioGRID, MINT, iRefWeb, DIP, IntAct, HPRD, MIPS and the PDB). Interactions are filtered both systematically and manually to remove erroneous and low quality interactions, and is updated every night. HINT can be used for individual queries as well as for batch downloads.