There are 5 repositories under arcgishub topic.
Transform, query, and download geospatial data on the web.
Chat bot for asking questions about your community with open data
Python interface to ArcGIS Hub
TypeScript wrappers for talking to ArcGIS Hub
Embed Hub events, initiatives, and search into other websites or apps
A Koop output plugin for generating DCAT-US 1.1 feeds from the ArcGIS Hub Search API.