GlyGen (https://www.glygen.org) is an international glycoinformatics effort whose goal is to overcome the lack of tools available to collect, organise, integrate and display key relationships linking glycan structures, their molecular context, and their biological expression to other biomolecular information. GlyGen addresses key glycobiology questions that can currently be answered only by extensive literature-based research and manual collection of data from disparate resources. To achieve this task the project is integrating and exchanging up-to-date glycobiology-related information and data with partnering data sources including EMBL-EBI, NCBI, UniProt, UniCarbKB, GlyTouCan amongst others. These datasets are grouped into different categories (source, annotations, etc.) and are accompanied with detailed documentation (in text and JSON format) to describe the source, usability, and the integration process. The accumulation of data has led to the creation of a web portal to search and browse all available collections. In addition to providing direct access to the integrated datasets, users can also access GlyGen data programmatically through RESTful web service-based APIs (https://api.glygen.org) and in the future a SPARQL (https://sparql.glygen.org) endpoint. In this presentation, an overview of GlyGen will be provided including the availability of data collections, quality control mechanisms, biocuration efforts, and on-going developments to build an intuitive user interface. Researchers interested in integrating their data into GlyGen can reach out to us using our contact page (https://www.glygen.org/contact.html).