Achievement Standards Network

The Achievement Standards Network is a repository of machine-readable curriculum standards, originally built by JES & Co. with Stuart Sutton at the University of Washington under National Science Foundation and Gates Foundation funding, and now owned and operated by D2L (Desire2Learn). It models learning objectives from US states, national bodies and other jurisdictions as an RDF graph in which every standard document and individual statement carries a stable URI, so that a statement in one framework can be aligned to the equivalent statement in another and to teaching resources. Historically you accessed it by resolving an ASN URI to receive an RDF serialisation, or by taking a full standards download in RDF/XML or JSON for free. The schema vocabulary and the browsing portal at asn.desire2learn.com are still reachable.

For RAG and for an AI tutor the value is as a competency spine rather than a body of content. The graph tells a tutor what a learner should be able to do at a given grade and subject, in what order, and how that objective maps across jurisdictions, so lessons and practice items can be tagged to official learning objectives and mastery tracked against them. You would then retrieve the actual explanations and exercises from openly licensed corpora we list, such as openstax, ck-12, siyavula and khan-academy, or the maths problem sets in amps, megamath, stackmathqa, naturalproofs and openthoughts3. ASN complements the framework sources we already catalogue, common-core and ngss, by giving their statements resolvable identifiers and cross-walks, and it sits alongside case-network, which serves a similar competency-mapping role through a different standard.

On licensing, ASN's own representations were released under Creative Commons Attribution, so attribution is required, but the underlying standards are third-party government and organisation documents governed by their own terms, which is why commercial redistribution should be checked per document. A serious caveat for builders: independent testing in 2026 found that the individual ASN identifiers now return 404, so treat archived exports as more reliable than live resolution.