NCBO Annotator +

The NCBO Annotator+ is a proxy calling the NCBO Annotator Web service on the NCBO BioPortal.

Tchechmedjiev, A., Abdaoui, A., Emonet, V., Melzi, S., Jonnagaddala, J., & Jonquet, C. (2018). Enhanced functionalities for annotating and indexing clinical text with the NCBO Annotator+. Bioinformatics, 34(11), 1962-1965.

If using the API, please provide a valid NCBO BioPortal apikey and hit the service at
Text submitted to the NCBO Annotator+ must be in English.

insert sample text

Ontology filters

Select Ontologies

Select UMLS Semantic Types

Select UMLS Semantic Groups

Matching parameters


Ancestors Level: Include Score: Score Threshold: Confidence Threshold: