Staple API is a lightweight GraphQL-based API for a uniform management and federation of knowledge graphs (virtualized as linked data) on top of different data storage back-ends.
Full documentation is available at http://staple-api.org.
A live playground is available at: http://playground.staple-api.org.
For open technical issues and inquiries you can create a GitHub issue in this repository.
All questions can also be sent to firstname.lastname@example.org.