For machines
NRDAX is built to be read by machines as much as by people. Every surface on the site is available as structured data over a stable URL. Point an agent at the knowledge pack for a single-fetch view of the whole registry, or use the API and feed below. Technique ids (NRDAX-Tnnnn) are permanent - cite them.
For agentic systems: the knowledge pack is the whole registry in one fetch - suitable for single-fetch ingestion - and the API below serves targeted lookups. Every technique has a permanent, citeable NRDAX-Tnnnn id.
surfaces
| resource | format | what it is |
|---|---|---|
| Read API - techniques ↗ | application/json | Every technique as JSON. Filter by ?family= or ?chain=; page with ?limit=&offset=. |
| Read API - one technique ↗ | application/json | A single technique by its permanent NRDAX-Tnnnn id. |
| STIX 2.1 bundle ↗ | application/stix+json;version=2.1 | The registry as a STIX 2.1 bundle of attack-pattern objects, anchored on NRDAX ids. |
| Coverage matrix ↗ | application/json | The derived technique × chain coverage matrix. |
| Families ↗ | application/json | The family taxonomy with per-family technique counts. |
| Knowledge pack ↗ | application/ld+json | The whole registry - Dataset, families, and every technique - as one self-contained JSON-LD graph for one-fetch ingestion. |
| Atom feed ↗ | application/atom+xml | Subscribe to newly-published techniques, newest first. |
| Sitemap ↗ | application/xml | Every technique URL, for crawlers. |
| llms.txt ↗ | text/markdown | A markdown index of the registry for answer engines. |
citing
Each technique has a permanent id of the form NRDAX-Tnnnn and a stable URL at https://nrdax.com/techniques/<id>. The registry carries a version and a DOI, and every technique page shows a ready-to-copy citation and BibTeX.