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ncats-arax

Queries the NCATS Translator ARAX production API for bounded, typed, provenance-rich one-hop and endpoint-pinned two-hop biomedical knowledge-graph relationships. Use for Biolink-constrained RTX-KG2 lookup, explicit selected-provider ARAX federation, separate entity normalization, qualifier-aware graph traversal, and inspection of TRAPI edge bindings, publications, and knowledge-source provenance. Do not use for inference, ranking, open-ended pathfinding, clinical guidance, or sensitive queries.

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Nov 6, 2026
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# NCATS ARAX

Use ARAX as a constrained knowledge-graph lookup service. Submit reviewed CURIEs and explicit
Biolink types, preserve the exact TRAPI exchange, inspect query-edge bindings and provenance, and
treat every returned path as a candidate for subsequent verification.

Read [query-contract.md](references/query-contract.md) before constructing a query. Read
[output-schema.md](references/output-schema.md) when interpreting saved artifacts, warnings,
provenance, or partial results.

## Safety boundary

- Use only public, nonsensitive research questions. ARAX status facilities may expose query and
  caller metadata even when `store=false` is requested.