IOPscience is a platform for scientific content published by IOP Publishing and selected publishing partners. Users from the Max Planck Society have access to nearly the entire journal collection. This includes the content provided by the Institute of Physics, The Electrochemical Society, Turpion (English translations of leading Russian journals) and the American Astronomical Society. In addition, the Max Planck Society covers article-processing charges for all IOP fully Open Access and selected hybrid journals centrally. Further details are available on the MPDL website.

The Max Planck Journal Index provides holdings of a great range of printed journals available within the Max Planck Society. Besides, it contains metadata of electronic journals as loaded from the EZB. The database is updated regularly from the ZDB (twice a year) and the EZB (monthly).