A Search Tool is now available in MapX, allowing to discover more than 1’800 datasets and story maps. It is possible to search by keyword (datasets being tagged according to the GEMET standard), by geographical location (according to the UNEP nomenclature) and by date (using a time slider as well as advanced options).
Take a while to discover them on https://app.mapx.org. From the left panel select the Catalog tab and play with the different options.
The Search Tool comes with an API that allows discovering MapX datasets from external applications.