HPO

Human Phenotype Ontology

HPO v2026-06-23

Concept LookupShow API example

Concepts

20,413

  • Other20,413100%

577 invalid (2.8%)

Domain mix

4 domains

Observation

16,58881%

Measurement

2,13910%

Condition

7113.5%

Measurement Value

3981.9%

Get Human Phenotype Ontology via the API

Query every concept in this vocabulary over HTTPS, against the current release. No downloads, no local database.

curl "https://api.omophub.com/v1/vocabularies/HPO" \
  -H "Authorization: Bearer $OMOPHUB_API_KEY"
Get your free API key3,000 calls/month free