The Gulf of Maine Research Data Catalog (https://data.gmri.io) is an open data portal containing datasets from GMRI's research programs. The Catalog inventories data into a single metadata repository, for discovery by end users.

The Catalog provides a searchable user graphical user interface (https://data.gmri.io/) for interactive data discovery by users, as well as a native API (https://data.gmri.io/api/3).