Cancer.gov

NCI EVS Terminology API

Enterprise Vocabulary Services (EVS) exposes NCI Thesaurus and NCI Metathesaurus content — over 192,000 concepts, 154,000 textual definitions, 623,000 synonyms and 630,000 inter-concept relationships — through a search and browse API used to code, analyze, and share cancer and biomedical research information.

Documentation GitHub

Documentation

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Documentation

https://evs.nci.nih.gov/

Other Resources

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Explorer

https://evsexplore.semantics.cancer.gov/

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WhitePaper

https://evs.nci.nih.gov/ftp1/NCI_Metathesaurus/EVS%20Metathesaurus%20White%20Paper.pdf