edjective.org hosted an educational system developed by Emptyhammock.
The premise was that if learning objectives are well-defined (whether by Common Core or any other educational standard) and teachers communicate to students which objectives are currently being learned or tested, then a wealth of relevant materials can be easily accessed by students/parents if a system exists for educators and the user community to curate appropriate materials pertaining to a particular objective. This could simplify the occasionally stressful attempts by parents to understand what material is being covered in their child's classes and locate appropriate instructional text, videos, flashcards, etc.
APIs were implemented to provide relevant materials to arbitrary clients. These materials were hosted by edjective.org or by other systems. Educators could develop certain kinds of data hosted by edjective.org; the general user community could curate links to other sites which were pertinent to specific learning objectives.
The provided web interface provided mere demonstrations of possible client features, such as flashcards.
While the intended use was for primary and secondary school, the system is useful for collecting and accessing educational materials in any setting where the objectives are codified such that materials can be indexed by specific objectives.
Needless to say, Emptyhammock would be eager to apply this system to the the needs of a client.