Terpenome is defined as all terpenoid-derived molecules (including the terpenoids, steroids and their derivatives) and enzymes involved in their biosynthesis. TeroKit is a webserver-based multi-scale toolkit conducive to the research of terpenome. It contains databases with annotated data of more than 160,000 molecules (TeroMOL, 150000+ terpenoids and 10000+ steroids) and 13,000 enzymes (TeroENZ), which are further integrated into the terpenome reaction network (TeroMAP).