GraphQL is a universal query language to develop web APIs. ORKG provides GraphQL endpoint to access its data (papers description and comparisons data). The following example allows accessing ORKG paper descriptions:

GraphQL provides an easy way to access data from multiple sources using techniques such as federation. Similar to ORKG, DataCite also provides GraphQL API to access persistently identified resources from DataCite, ORCID, ROR, etc.
Considering both APIs, we also developed a GraphQL-based federated endpoint, which allows accessing data from both infrastructures (DataCite, ORKG) in an integrated way. Thus, enables to satisfy complex information needs of diverse stakeholders (researchers, funders and peer reviewers).

More information:

• Muhammad Haris, Kheir Eddine Farfar, Markus Stocker, Sören Auer: Federating Scholarly Infrastructures with GraphQL. textCoRR abs/2109.05857 (2021)
• https://graphql.org